Kino
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Ebrahim,
Why stop at 14 bit? Surely, the Sony F5 is "better" with true 16 bit RAW. I'm sorry, but paper specs mean nothing to me, just as if you put the FS7's 10 Bit 4:2:2 S-log3 image next to the 12 bit RAW you get from the same sensor in the FS7 or FS700, you will see that the S-log3 image has far more dynamic range. Not all RAW is created equal and the implementation of RAW can vary dramatically from one camera to another.
The 1DC 4K image in C-Log is for me the most amazing video image I have ever seen from a DSLR. Perhaps the Leica SL with its 10 bit 4K 4:2:2 external will give it a run for its money as it also has Log, but I've barely seen any footage from that camera at all. The 5D 2K RAW is fine for HD applications. However, I would never choose that above the 4K 1DC. For future proofing, at the very minimum you must shoot in 4K nowadays. My personal view is that my next camera should shoot in 5K (for effective downsampling to 4K, as a CMOS Bayer sensor should only be rated at 75% of its listed resolution) or that it should resolve an amazing level of detail in 4K such as with the 1DC and 1DX II.
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On 5/25/2016 at 11:28 PM, Mattias Burling said:
MF is only for Nazis.
I think it is ironic that these jokes about the Nazis and MF are actually true. The famous Arriflex 35 that became a standard film industry camera after WWII originated in Nazi Germany. It was the first 35mm motion picture camera to allow for reflex focusing.
So, yes, when it comes to motion picture cameras, the Nazis perfected manual focusing.
Still, I prefer the precise control of MF for hand-held documentaries, even if it makes me a bit of a camera "Nazi."
Here is an example of the 1DC in a documentary setting that shows the value of manual focusing for stylistic effect:
- TheRenaissanceMan and kaylee
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All this discussion about handheld documentary shooting is really failing to identify the revolutionary nature of DPAF technology as implemented in the 1DX II. Certainly, achieving critical focus in split-second time and undertaking rack/follow focus will be much easier with DPAF than any manual method, even with a great monitor that has focus peaking.
But the truly impressive capabilities of DPAF that would be very costly if not impossible to emulate through any other means include remote focus control and completely autonomous focusing. For me, the fact that DPAF can keep focus on a moving or stationary subject as I perform a tracking or stabilizer shot is priceless. Moreover, the touchscreen focus control is also accessible through a WiFi tablet application that has a range of over 300 feet. The Mo Ming BTS video in particular demonstrated this ability to control focus pulls remotely during live shooting (using the optional $600 WiFi unit):
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6 hours ago, Ebrahim Saadawi said:
Point is, PDAF is quite an important feature and one that's making me confused choosing a 1DC vs 1DX. Along with the 60p and the 120p, which I would like to have a slow motion ability in my A cam. But the 1DC just makes a prettier image with higher DR and highlight rolloff and lower digital look or sharpening plus the C-Log colours. It's a miserable choice.
I agree 100%. But ask yourself why Canon has deliberately made this a "miserable choice"? They could have made this an easy choice by adding one or two features to the 1DX II, but they didn't. It's part of their incremental product advancement and segmentation. It's similar to what Sony has done with the A7RII and A7SII by giving them different features and by designating one camera an all-round high-resolution "hybrid" and the other a low-light video/photo shooter.
It's also why I firmly believe there will a 1DC II announcement later this year that puts an end to your "miserable choice." They are not going to drag this thing out for too long as the competition is really intense in this sector and so many have already left Canon for other brands.
Now what would be really "f***ing amazing" would be the adoption of JPEG 9 in the camera's photo mode so as to allow for higher bit depth (the new JPEG spec can go up to 12 bit) in a new and redesigned MJPEG engine.
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1 hour ago, independent said:1 hour ago, independent said:
That's all kinds of horseshit. Based on what, youtube videos of flowers? A building? The issue has nothing to do with the 1DC per se. Focusing the 1DC is not very different from any film/video camera up to this point...until Canon's dual pixel cameras and the 1DX II. You're losing sight of what the 1DX II offers.
No, it's not difficult to focus any lens if you have a good focus puller. Or if you have the budget for one. Or the space in a location for one. Have you seen the 1DC used as a documentary camera? Have you seen it used to capture live events? How about feature films? And of the latter, how many of them were shot with a single operator?
Meanwhile, the 1DX II provides solutions to all of the above. That's an advantage in time, efficiency, money, and creative opportunity.
I'm not saying the 1DC doesn't have a dynamic range advantage. If that's the criterion for your camera, then that's your personal preference.
But saying the 1DC isn't hard to focus is socking the straw man.
That's all kinds of horseshit. Based on what, youtube videos of flowers? A building? The issue has nothing to do with the 1DC per se. Focusing the 1DC is not very different from any film/video camera up to this point...until Canon's dual pixel cameras and the 1DX II. You're losing sight of what the 1DX II offers.
No, it's not difficult to focus any lens if you have a good focus puller. Or if you have the budget for one. Or the space in a location for one. Have you seen the 1DC used as a documentary camera? Have you seen it used to capture live events? How about feature films? And of the latter, how many of them were shot with a single operator?
Meanwhile, the 1DX II provides solutions to all of the above. That's an advantage in time, efficiency, money, and creative opportunity.
I'm not saying the 1DC doesn't have a dynamic range advantage. If that's the criterion for your camera, then that's your personal preference.
But saying the 1DC isn't hard to focus is socking the straw man.
I'm not sure how my statement on the focusing the 1DC could be interpreted as a slight on the 1DX II. Some people mount an external monitor such as the SmallHD 502 on top of the 1DC and that makes focusing much easier while adding a whole bunch of monitoring tools that are missing from the 1D series. Moreover, a lot of documentary content has been shot on the 1DC with a single operator, some of which I have already reference in this thread (e.g., the National Geographic series Tales By Light). Narrative is another matter, as most of these productions have larger crews and assistant camera people.
I do not underestimate the 1DX II one bit as you seem to underestimate the 1DC's extensive deployment in film and TV production. Its credit list is much longer than you might think and it is still the only DSLR to be EBU certified for Tier 1 HD broadcast in Europe. This means that 100% of broadcast content for any show can originate on the 1DC:
http://cpn.canon-europe.com/content/news/eos_1d_c_gains_ebu_approval.do
DPAF looks pretty awesome to me. The 1DX II also has a higher resolution rear screen that makes it easier for manual focusing. These are all great shooting tools, as is the audio line in which wasn't added in the 1DC until a later firmware. The 1DX II's greatest feature that sets it apart is the 4K60P, which produces beautiful slow motion as in the example I linked to above.
Despite all these advantages for the 1DX II, if I had a choice between these two cameras, I would definitely choose the 1DC as its image is more appealing to me by a significant margin.
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2 hours ago, DBounce said:
Yes, and now imagine the $12k price tag. Honestly, the cost/value equation will get out of wack pretty quick should such a camera ever come to be... which Canon said it would not.. the original 1DC did not sell well. In any case, I'd be much happier should Canon just release C-Log as an update on the 1DX MkII.
At a $12k price point there are better options. That's why many here didn't jump on the original 1DC.
I don't think you have to worry about another $12K 1DC. Canon has already learned its lesson on that one.
I'm pretty sure 10 bit internal is impossible on these weather-sealed bodies with the current sensor and heat management technology. That's why a 1DC II would be much closer in price to the 1DX II because the only advantages would be a few cinema features such as C-Log and possibly Super 35mm mode. $8,000 would be the realistic price of the 1DC II, as Canon has already demonstrated the ability to bring the 1DC technology to the market for only $6,000 in the 1DX II. I also don't think they will ever put C-Log in the 1DX II as it would disrupt their entire Cinema EOS line.
Moreover, the 1DX II price point and its place in Canon's market segmentation was determined by their primary competition: the Nikon's D5 at $6500. So they couldn't retail the 1DX II for a higher price in order to add the features they are going to include with the 1DC II. This way, by maintaining separate 1DX and 1DC lines, they retain segmentation while competing effectively with the Nikon D5.
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17 hours ago, independent said:
The 1DX II is a "better buy" if you're talking about financial investment. It's a top of the line stills camera too, it'll hold it's value better. When and if the 1DC II comes out, that's not going to help the 1DC as an investment.
Anyways, the 1DX II It has a cutting-edge, unparalleled video autofocus. It's a FAR more functional camera. The 1DC is now a more specialized camera, and unless you need the form factor and weather sealing, the blackmagic ursa mini 4.6K is a better video camera anyways, for the price range. 1DC v 1DX II is kind of a contrived comparison...there are other options out there. But if you're going to limit this to a two-horse race, I think the 1DX II is a better buy, especially since the 1DC retails for $2K more (in the USA) YMMV - of course if you can get one that fell off the back of a truck, that changes things.
And as mentioned before, dynamic range isn't everything. If your shots aren't in focus, or you're racking in and out of focus, or you need to spend time blocking and setting up focus marks, rigging up your 1DC with a follow focus, while framing, while moving, etc. I mean, it's not even close...the 1DX II is far better if you're a one-man band or a skeleton crew.
If you have a full crew, the 1DC would be better, but then again, you probably would be better off using a proper video camera.
As far as preferring image quality, the 1DC does seem to look more organic (softer) with better highlight roll off. Is it more cinematic? Depends. If it's an independent film, yes. But look at the blockbusters or mainstreams films. Very contrasty. Vivid colors. There are also many shots that I see in beautifully shot films and shows that have blown out highlights. Some intentional, some you know it was probably a limitation, a trade-off (expose for the talent). The cinematic look is broader than you think.
Anyways, we're also talking out-of-the-box looks. if you handle the image acquisition right, ETTR, adjust settings as aforementioned in the thread, give it a "filmic" grade, it seems you can get pretty close to the look you want.
As yourself this:
Can you tweak the 1DX II so it'll give you a look you'll be satisfied with?
Can you tweak the 1DC so it'll get all your shots in focus?The "cinematic" or "filmic" look is definitely too broad a concept, which is why I suggested considering the 1DC and 1DX II as two different kinds of film stock: one has softer roll-off, more DR, and a wider color gamut (owing to the advantages of grading with C-Log) and the other has abrupt roll-off, less DR, and a more limited but "vivid" color palette. Neither one is less "filmic" than the other since you can find many historical film stocks that mimic each one of these cameras.
Of course, I prefer the first option, and I can't imagine that focusing is all that difficult on the 1DC considering the number of incredibly sharp images I have seen from that camera.
And I don't think anyone who buys a 1D series camera for video wants a "proper video camera." That defeats the whole purpose. The form factor, weight, and ease of use alone provide so many advantages that make these cameras essential for some shooters. Besides, I prefer the 1DC's resolving power, 1.3x crop factor, colors, image depth, and highlight roll-off to pretty much everything I have seen from cameras like the Mini 4.6k, Sony FS7 and even the RED Raven that I have ordered (but may cancel or switch to Scarlet-W). And you can't even compare Canon's space-age manufacturing facilities to BMD's amateur and fourth-rate quality control.
- TheRenaissanceMan and iamoui
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21 minutes ago, Nikkor said:
Boosting the gain in camera? That's called ISO and it makes you loose the top F stops.
Not in camera, as you would obviously lose stops in the highlights. A 6dB and 12dB gain were applied to the C300 II files in post to achieve those results:
https://tech.ebu.ch/docs/tech/tech3335_s18.pdf
Roberts is one of the greatest broadcast and video experts on planet earth and his camera tests are always highly informative. I'm sure he knows what he is doing, even though some of it seems like Voodoo to me.
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1 hour ago, Policar said:
Who are they useless to? They're there. Why are they useless? I don't understand. They're noisy... I guess. But there's no such metric as "useful" vs "not useful." And in this case, so long as I was okay with a bit of noise noise or I did some NR or I exposed normally and left the shadow sin the shadows, those last three stops would be useful.
As for the SNR conversion, I couldn't speak to that, but if you're using the same "math" you've used throughout this thread, I wouldn't care to try.
Roberts's extensive test of the C300 II suggests that those stops are useful and can be recovered by boosting the gain. He also uses a different methodology to reveal the camera's true DR that a normal Xyla test would not reveal. It's all really impressive. I would certainly rank his test as far more comprehensive than Cinema5D's Xyla and IMATEST combo, so there will be no argument from me on that one. That guy is practically a genius. Maybe it is a 15-stop camera because of the C-Log2 implementation. That's exactly what his test demonstrates.
Now imagine if we got C-Log2 and internal 10 bit recording on the 1DC II. I don't know if that's possible without a fan, something that is not going to happen on a weather-sealed body unfortunately.
As for SNR conversion: 6dB = 1 stop.
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1 hour ago, hmcindie said:
RED Dragon though has a set ISO. C300 ii will increase analog gain so it will keep onto the DR better when you start going up in ISO.
Like DR, ISO performance is also a function of signal-to-noise, but they are separate things. A great low-light camera such as the A7S is not necessarily going to give you the greatest DR. The C300 II is a fantastic low-light camera (one of the best of the cinema cameras), but not necessarily the one with the greatest DR.
There is no doubt that Alan Roberts is a star and helps to set EBU standards. I have the highest respect for him. You will note, however, that this was a test of the C300 II only and not a comparison:
"Unlike other testers he does not do direct comparisons with other cameras. Each test stands on its own and comes with a set of recommendations for how users can set up the camera for good results. He tries 'to think like a normal user would think: What am I going to use this camera for? And how am I going to use it?'"
You will also note the way in which he obtained these results: "Adding 6dB and 12dB gain confirmed that the dynamic range is indeed about 15 stops."
That's fine and is something I mentioned above when talking about lifting the gain to obtain more DR. But you could do that with almost every camera and get more out of it, depending on your subjective standards of acceptable noise (yes, there is always interpretation involved in determining DR). I'm just not sure if it really changes the relative performance of the C300 II against the Dragon and Alexa, since those cameras all have different noise patterns and color performance when underexposed.
It is also interesting that Roberts recommends shooting the C300 II in the HD 12 bit 4:4:4 mode for maximum performance.
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Cinema5D uses IMATEST software to determine the "usable" DR from Xyla results, but you don't need that to see what the usable DR is in those C300 II results. You can see it for yourself on those Xyla charts where several bars in the range are useless because they are clipped or have too much noise to be counted as "usable" stops. It's really easy to see and does not make one "the dumbest person." Canon's response to the Cinema5D's assessment of 12 stops was not in the form of a Xyla where you can see noise patterns and clipping effects, but a waveform that they claim demonstrates 15 stops:
Unfortunately for Canon, this waveform actually confirms that the C300II does not have 15 stops usable as the last 3 stops are completely useless. The problem here is that the last few "stops" you are looking at are differentiated by voltage differences that do not rise above the noise floor:
https://***URL not allowed***/canon-measured-15-stops-dynamic-range-c300-mark-ii/
Moreover, Canon lists the C300 II's signal-to-noise at 67dB, which translates into 11 stops! That's about as damning as you can get. RED Dragon by contrast is listed at 80dB (which equals 13 stops not 16.5 as RED claims). That's a vast difference.
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2 hours ago, TheRenaissanceMan said:
Well, I could care less about the retail price. It's the used market I'm interested in.
A retail price drop will affect the used price as well. And, unlike most cinema cameras, the 1DC has no sensor remapping function built into the camera so just make sure there are no bad pixels on any used unit you are looking at. The only way to fix it at that point is to send it back to Canon, which might get costly without a warranty.
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2 hours ago, Policar said:
Are you willfully ignorant or actually just really dumb?
Those charts show 14+ stops nearly 15 for the FS7 and 15 for the C300 Mk II. 15+ for the Alexa, the same as their current market reps will claim (fwiw, their claim was always 14+ and 16 is still 14+). Sony claims 14. Canon 15. They aren't exaggerating anything and the charts you linked to prove it. Yes, Arri understates their DR claims, that's been known forever.
There's no controversy. The earth is still round. Cinema5d is still full of shit. You can't just make up a fake metric, define it arbitrarily, and measure manufacturers against that fake metric like it means anything. I mean you can, but it's a huge waste of time and no one should care about it. What's funny is both the FS7 and C300 Mk II charts show what the reps claim, and then Cinema5D just draws a line somewhere random and tries to start a controversy to generate hits (and it's working because people like you take their bullshit seriously). On what sane, intelligent basis do you think Canon or Sony are exaggerating?
Hurling insults isn't going to advance your argument, or make you seem particularly logical, composed, and mature. Are you here to debate people in a civil way or to insult them?
We've been through the charts a million times. As I noted before, Xyla tests are up for interpretation and are not scientific. Acceptable levels of noise vary depending on who is undertaking the testing. What Cinema5D is doing is applying IMATEST software to the results to come up with one standard however arbitrary it may be to you or me. Then that standard is applied universally to all cameras so that they can all be compared against one another in an objective way. Moreover, their results are mostly consistent with DR tests from other sources such as the Hurlbut tests I posted above on the 1DC. You are free to believe whatever Sony and Canon state, but that doesn't mean that manufacturer claims are credible or that they can demonstrated through independent tests such as those undertaken by Cinema5D. I for one appreciate independent tests undertaken by industry technicians who provide the evidence to back their results more than baseless claims from a camera company's marketing department.
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1 hour ago, Policar said:
No, it's not. It's no better than someone starting a controversy over the earth being flat or something equally dumb. They are repeating inaccurate information and presenting it as fact, that's why they're making people angry. Being "controversial" doesn't always make you right; in this case the controversy is over the fact that they won't stop using a really dumb methodology and offering inaccurate figures.
That said, if you read deeper and actually examine the charts for yourself, you can see that most manufacturer's specs are pretty much spot on, and Arri is performing above spec. So the charts themselves are useful.
No one's stopping you from thinking the earth is flat. Just don't expect others to respect you for it or be impressed by the controversy you've generated.
No one is stopping you from making completely false comparisons . . .
Misinterpreting or misrepresenting DR numbers from a Xyla chart is far from arguing that the "earth is flat." That's just nonsense! We are talking about a difference of a few stops between manufacturer claims and actual DR performance in terms of "usable" stops.
Besides, Cinema5D is independent of those manufacturers who routinely exaggerate their DR claims, which can be off by 2-3 stops as demonstrated by the C300 II and FS7 Xyla charts above. As for Arri, they generally don't advertise DR numbers for their cameras, even though the Alexa is shown as the best performer in Cinema5D's Xyla tests. I don't think there is any controversy in that at all.
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Ebrahim,
We could be here all day talking about testing methodology for DR, but life is too short. As I mentioned, Cinema5D's methods are not perfect because even IMATEST has to make arbitrary decisions about what level of noise or clipping is acceptable when determining steps of DR. Even so, once that methodology is applied universally to all cameras that they test, it provides as good a picture as any of which cameras have a greater or lesser range. Perhaps the 5DIII/C300 example is an anomaly, but we don't have all the data in front of us to make that determination.
I just like the fact that their Xyla charts expose a lot of manufacturer (and fanboy) claims about certain cameras. Soon enough, BMD's claims about "15 stops" on the 4.6k will meet Cinema5D's Xyla-IMATEST combo. The results won't be pretty.
So I think it's great that Cinema5D causes controversy because that tells me they are doing their job correctly by offending a lot of people who should know better than to believe manufacturer fictions on DR.
As for the 1DX II, it's a camera to recommend more for function than cinematic image quality, which is not its forte. All the same, I think it would be a great documentary, corporate, travel, or event video camera, especially in shooting conditions that don't call for a lot of DR.
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3 hours ago, TheRenaissanceMan said:
I'm really hoping to see a used 1DC drop to ~$3000 now that the 1DX II is out...wishful thinking, I know, but it could fill literally every one of my stills/video needs--doc, event, narrative, studio, portraits, candids, etc-- depending how I kit it out at any given time.
You, me, and everyone else! I check the 1DC price twice daily and it hasn't moved in months. I read that B&H had a flash sale at $6500 or $7000 at the end of 2015 but I haven't seen anything like that since. I don't expect that the retail price will move until we are closer to the 1DC II announcement.
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So getting back to the main topic of this thread, here is some great 4K 60fps slow motion from the 1DX II:
The performance of the 800 Mbps MJPEG is just astounding here in terms of the detail you can see in the image. It's a very high-quality slow motion with perfect motion cadence. I guess it better be at 100 MB/s!
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3 hours ago, Luke Mason said:3 hours ago, Luke Mason said:
The standard is Alexa, they advertised 14 stops and the test proved it. If you must say C300 has more than 12 stops, than Alexa can do 15 or even 16, but ARRI decided on 14 based on years of research and strict standards.
12bit RAW does not increase dynamic range, and it does not make any part of it "more usable". SNR is affected by sensor characteristics and compression, not quantisation.
The standard is Alexa, they advertised 14 stops and the test proved it. If you must say C300 has more than 12 stops, than Alexa can do 15 or even 16, but ARRI decided on 14 based on years of research and strict standards.
12bit RAW does not increase dynamic range, and it does not make any part of it "more usable". SNR is affected by sensor characteristics and compression, not quantisation.
You must have missed the part where I said that Canon's claim of 15 stops is "false" because it would put the C300 II above the Alexa. I thought I was pretty clear on that. Cinema5D's Xyla test clearly showed the Canon as behind the Alexa and on par with the FS7 at 12 stops "usable" based on their methodology.
I also never said that RAW "increases" dynamic range only that it allows for better recovery of the highlights and shadows in post depending on your camera. On the BMPC-4K, this is very much the case as RAW maximizes the available DR from the sensor when you compare CDNG and ProRes files in Resolve.
But it should be pointed out that RAW implementation simply does not behave the same on all cameras (e.g., Log vs. Linear) to make any generalizations about what it might do to the camera's potential DR as Sony FS7 owners were unfortunate enough to learn when they paid thousands of dollars to add a RAW "upgrade" that was really a downgrade in DR when compared to the camera's internal 10 bit 4:2:2 S-log3.
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1 hour ago, Luke Mason said:
highlight recovery in Resolve only works with DNG RAW, C300/500 RAW is logarithmic (Alexa's Log-C is also logarithmic), meaning it's just uncompressed C-log, there's no "extended range", Xyla tests reveals the entire available dynamic range the camera can produce. As for the BMPC-4K example, they tested with BMDFilm curve applied and also highlight recovery, so again there was no missing DR. Your eye ball certainly were not as precise as IMATEST software.
You will notice that I made the distinction between visible and usable DR. The Xyla test reveals the entire "visible range," but Cinema5D's conclusions on DR are generally based on the "usable range," which can be reduced by 1-2 stops (especially with RAW). That's what I'm referring to as the recoverable DR that Cinema5D does not include in its DR ratings. You can see this on their Xyla tests as the difference between all the steps the camera records and the red line that marks what they accept as "usable" DR. They even lift the gamma to expose this expanded range that is accessible in post. On the C300 II, they counted only 12 steps (13 bars) of usable DR, whereas the visible DR range goes beyond that by several stops.
Also, the C300 II was tested in its internal 10 bit 4:2:2 codec, where it achieved 12.3 stops of DR on IMATEST. However, using 12 bit RAW one would assume a slightly greater DR and a more usable range. They did not test the camera using its 4K 12 bit RAW output. They claim to have tried it out on 2K 12 Bit RAW but do not post the results as, according to them, it was no different from the 10 bit file.
Ultimately, a Xyla test is just another test with variables that can affect the outcome, including the acceptable level of noise or clipping that one interprets when counting steps. Using IMATEST just guarantees that all camera results are treated equally and can be compared against one another. IMATEST is not some higher standard of DR "precision." It still has to make a quantitative assessment of acceptable noise and clipping levels. Yet there is no universal or scientific standard for noise performance. What is acceptable to one person may not be to another.
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3 hours ago, Policar said:
Cinema5D's testing methodology is a joke. Every reputable source has rated the C300 Mk II as 14-15 stops in Canon Log 2 but with the caveat of noisy shadows. Apples-to-inaccurate-apples, what's that site's rating on the 1DC? I'd guess 10-11 stops. What's their rating of the C300 (a legit 12)? Or the 5D (8-9)? I'm guessing something inaccurate. Granted, the Alexa's current generation sensor and firmware has well surpassed 15 stops and Arri reps will privately confirm it, so the Alexa does have better DR and cleaner shadows than anything else. A friend just picked the Alexa Mini over the C300 Mk II and his DR tests just blow my mind. I dropped out of my math major so all the bits and stuff don't really mean anything to me, just not my strength. What does 14 stop with RAW recovery mean? How does a RAW recovery relate to a stop of DR? I never studied image formats.
Accurate comparisons of the C300 Mk II and Alexa show that the Alexa has a worse SNR in the highlights, slightly better in the mids, and far better in the shadows, but that despite very noisy shadows relative to the Alexa, the C300 Mk II (which is also far far cleaner at high ISOs than the Alexa, a common trade off) technically captures nearly as wide a spread of information. It's just not as pretty in the shadows, much more noise there. But a properly exposed image wouldn't emphasize this part of the curve in either camera, so the difference in noise would be minor, but the detail still present in most properly shot and graded material.
Of course, you're right, this is all irrelevant because what matters are your given needs. If you find noise in the shadows (even if there's still detail there) loathsome like the above test does, then you'd make the same subjective call, but call it what it is–subjective. But his cut off point is totally arbitrary and the test is pretty meaningless. Fwiw, the A7S (haven't used the A7SII) does have great DR (but also not up to Sony's claim of 15.3 stops or whatever), while the the F5 (haven't used the FS7, but same sensor) I remember having more than the C300, Red Epic, or any dSLR. Sony's 14 stop claims on its cinema line are fairly accurate, it's just a shame the image doesn't look better than it does. But then again, that's also a subjective call.
I also think dynamic range needs are overrated on lower end productions, and that the above video looks awful, but that's another story.
The C300 II Trick Shot video is actually a pretty amazing demonstration of DR and color. It just shows you what you can do with C-Log2 even in a compressed 10 bit 4:2:2 codec. This is why it is so important that the 1DC has C-Log. It makes an 8 bit camera act like 10 bit, while a 10 bit camera acts like 12 bit. That's the magic of a good Log implementation.
Cinema5D's methods certainly leave something to be desired as they switch between talking about "visible DR" and "usable DR" in the same review or across reviews. They never posted a 1DC Xyla, but claim that both the C300 I and 1DC achieve around 10-11 stops of "usable dynamic range," without noting whether they employed C-Log (I would imagine they did):
Personally, I find Hurlbut's over-and-under tests of the 1DC and C500 to be a far more valuable indication of DR. His series of tests with the C500, the Alexa, and RED Dragon are also very impressive in terms of what they reveal about the C500 as a camera that surprises with great color and low-light performance:
What I mean by "RAW recovery" is simply what happens when you go into Resolve and use highlight and shadow recovery to extract more DR in the RAW file that you otherwise would not see if you are just looking at the ungraded image. Xyla tests such as the one used by Cinema5D do no represent that extended range, so we could add at least an estimated 2 stops to their results for RAW-capable cameras like the C300 II. Note that there is nothing scientific here about how many stops you can recover. It's just an estimate, but that is certainly the way it works with the CinemaDNG files from my BMPC-4K when I take them into Resolve. I recall that Cinema5D rated the BMPC-4K at 9 stops whereas using Resolve you can lift the shadows at least one stop and recover highlights by at least a stop. Thus, the recovered DR is closer to 11 stops.
As for the Sony F5/F55, it outputs true 16 bit linear RAW . . . no contest there. It's pretty much the king when it comes to RAW bit depth. Even RED R3D files offer only "16-bit precision" while Alexa and Ursa 4.6k use Log to achieve greater a bit depth that they don't actually record.
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39 minutes ago, PabloB said:
http://www.fredmiranda.com/forum/topic/1421137
"Weaker" in the sense that the new sensor is ADC design, and having less noise in the shadows.
Anyway, until we see some direct comparisons and see some footage that hasn't been sharpened either in camera or post we won't really know for sure. Numbers are in some cases meaningless.
This so-called "source" is a member on a fredmiranda.com forum who posted his own chart to the forum with the following caveat:
"Note: all the RAWs (except for the 1DX2) come from Imaging Resource ISO series (the 1DX2 have been received from another source which I won't disclose; please do not ask me for these RAWs)."
This is not a like a publication by DPreview with transparent examples for everyone to see. Moreover, I wouldn't put too much value in that chart until I could see the 1DX II examples for myself. DPreview's test of the 1DX II is fairly damning and is there for everyone to see.
Another test with examples showed that the 1DX II and 1DX are actually identical in performance:
Just like DPreview, he provides concrete examples to prove his point: the 1DX II offers no improvements on DR or noise performance. I also believe they are identical for reasons I stated above in that the 1DX II is starting out with a signal-to-noise disadvantage with its smaller photosites that it has to overcome through more advanced sensor tech and processing (Digic 6+).
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11 hours ago, PabloB said:
The Canon 1DC may well have better dynamic range in clog but I believe the advantage may only be a stop at best with the 1DXii already having a 1 1/2-2 stop dynamic range advantage at base iso, and a further 1 stop gain shooting in cinestyle -1 ev htp, which adds up to around 3 stops. This compares favourably to the 1DC and its 2-3 stop gain using canon log from a weaker sensor.
What I'd really like to see is a direct comparison.
Where are you getting these DR numbers for the 1DX II and why would you assume that the 1DC has a "weaker sensor"? In fact, most of the tests we have seen show equal performance, if not an edge for the older sensor as in the DPreview article already cited on this forum:
http://***URL removed***/news/8090146652/canon-eos-1d-x-mark-ii-studio-tests
After all, the 1DX/1DC sensor has larger photosites than the second generation (6.95 vs. 6.65 microns) and can theoretically achieve a greater signal-to-noise ratio. Perhaps processing advancements and the gapless micro-lens sensor technology can make up for the smaller photosites of the 1DX II so as to even out the noise performance between the cameras, but it is doubtful that it could be much better.
From what I have seen, the 1DX II video footage performs exactly the same as the 1DC in neutral no matter what you do with those superficial picture profile settings, which means that it has 9 stops of DR and a lot of crushed blacks and nearly-clipped highlights:
The 1DC on the other hand will give you a very different look with better DR, smoother roll-off, and much lower contrast, not to mention the wider and richer color gamut that goes with C-Log when grading the footage in post:
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10 hours ago, Policar said:
Your claim that the 1DC and C300 Mk II have equal DR makes your posting history seem specious. Talk about picking and choosing methodologies to forward an inaccurate narrative. The C300 Mk III kills in DR when measured properly.
That said, there are so many awesome options now. It really does boil down to individual need. Or whether you can afford an Alexa or not.
No need to argue with me about the virtues of the C300 II, as it is one of my dream cameras. I just wish the price were about $5-6K lower so that I could justify such a purchase. At $10K, it would be very much worth it.
Now the only "inaccurate narrative" is found in Canon's claims about the C300 II's 15-stop DR, which would place it beyond the Alexa! Cinema5d's Xyla test of the C300 II shows only 12 stops of DR. The FS7 was also found to have lower DR than Sony's claims of 14 stops:
https://***URL not allowed***/canon-c300-mark-ii-review-dynamic-range/
With the C300 II's internal 10 bit and external 12 bit RAW output, however, you should be able to recover much more of its highlights and shadows than the 1DC, so perhaps we could say that the C300 is a 14-stop camera with RAW recovery. There is no debating that at 2X the price ($16K) it is a better cinema camera than the 1DC and that it produces stunning results. Just because the 1DC can reach similar DR numbers as the FS7, C300 and C500 in a latitude test does not mean they are equal in other ways as I have stated. The same could be said for the A7SII DR, which comes in at just below 12 stops, but which has the worst codec of the bunch:
https://***URL not allowed***/ultimate-sony-a7s-ii-vs-a7s-test-difference/
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3 hours ago, Luke Mason said:
C-log on 1DC offers decent dynamic range, but you are exaggerating saying it's better than C500. In fact it's inferior than most cinema cameras.
See this dyanamic range test:
http://www.cinematography.net/edited-pages/NZCS-Contrast.html
That's not a very good test as the 1DC in that comparison was shot with a different framing that placed more sunlight into the background relative to the other cameras. They should all have the same framing. Despite this problem, you can see that the overexposure of the building looks equal on the 1DC and C500 frame grabs.
Now the "cinema cameras" I was thinking of are those in the 1DC's general price range such as the FS7 and C300. But, in any case, different tests will produce different results, especially when we have no idea what the exact settings were on each camera. Here is an actual side-by-side video that shows a very good performance for the 1DC in terms of its DR when compared to cinema cameras including the C500:
It's also important to note that the C500 has an expanded DR in HD 12 Bit RGB 4:4:4 relative to what it achieves in 4K 10 bit RAW, where its latitude is reduced. In the HD mode, it is a very impressive camera indeed. In 4K, however, the C500 has a reduced DR of around 12 stops, which is roughly equivalent to the FS7 and the C300 II:
https://***URL not allowed***/canon-c300-mark-ii-review-dynamic-range/
The 1DC itself was measured at 12.5 stops by Hurlbut, who has tested both the C500 and the 1DC very extensively:
http://www.thehurlblog.com/film-education-online-the-next-gen-in-digital-film-capture-canons-4k-1dc/
His exposure and latitude tests for the 1DC and C500 are available on his channel. Here are just a few examples:
In both overexposure tests, you can see that the C500 and the 1DC will go about 3 stops over before they clip in a way that is unrecoverable, unlike the Alexa which can go much further. Based on Hurlbut's tests, I would say that the 1DC indeed "rivals" the C500 when it comes to DR but not in any other way as a proper cinema camera.
THE BEST OF CANON 5D4 IS THE CANON 5D3
In: Cameras
Posted
This is precisely what I have been saying. RAW definitely has an advantage in post, but a camera's color science is far more important than the fact that it shoots in RAW. This why so many 8-bit Canon cameras look so good when it comes to skin tones or true-to-life color capture. It's also why RED cameras have such an advantage over BMD, despite the fact that they both give you 12 bit RAW.