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Don Kotlos

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Posts posted by Don Kotlos

  1. The gamut can be large but the bit depth can still be low. By using 8bits, you are effectively undersampling the larger space. 

    Many Sony color profiles used a larger space than rec709. Even at 8bits, these are very useful, especially under artificial lighting. The trick is to boost saturation just enough so you don't get color clipping. 

  2. CMD+T adds a cross dissolve for the selected clip

    To add favorites effects: add an effect you want on a clip (it doesn't matter the clip), and then click the "Save Effects Preset". You can make a custom folder in which you can have all the effects you use. 

    Drag & drop clips from finder into the timeline/media panel works for me. 

    @DaveAltizerWhile I agree with you on most things about FCPX, I disagree with this:

    59 minutes ago, DaveAltizer said:

    Would have been impossible using Adobe with their flawed CUDA crap. Adobe basically just wants everyone on PC's. 

    1

    CUDA is not flawed. If anything the only flaw is that it should be used even more like in Resolve. And its not that Adobe has a preference for windows, it is Apple that does not use/allow decent CUDA cards in their systems anymore. If you use the latest cards in the 2010 mac pro then adobe performs great:

    5a7624b7a4791_ScreenShot2018-02-03at3_06_40PM.png.bd78dcd633836297df61d13babe5bf27.png

    The same happens if you use an eGPU like I have shown here .

    And if you try to blame adobe for having a bias for CUDA then I would argue that FCPX has a bias for AMD:

    5a7be5407a6b6_ScreenShot2018-02-07at11_50_40PM.png.338810e938387d42061139e8b36e3466.png

    The biggest feature that FCPX has, which you see published most often and has drawn many people to it myself included, is the use of intel QuickSync. That gives the most of the fluidity during H264 editing or speed during exports, and is what Premiere lacks. 

    If it wasn't for that and the f*cked up subscription model of Adobe, I would have loved to stay with the feature-rich Premiere. 

  3. @Kisaha While FCPX is great if you own Apple hardware, I have had a very hard time getting the Quicksync to work in any of the hackintoshes that I have built. 

    Stability is great if you get most of the drivers right, and for a laptop that is not always the easiest task but might be worth trying. The community in tonymacx86 is huge and you can get a lot of help. 

    With the Xeons it depends on the version. For example, I could not get any of the X99 Xeons to work but I am guessing older versions that exist in the mac pros might work out of the box.  

    Definitely try the desktop first to get some experience and once you feel more comfortable try the laptop.  

  4. If you are using Adobe with Mac and you don't mind the size, then the Mac Pro 2010 might be a better deal:

    5a7624b7a4791_ScreenShot2018-02-03at3_06_40PM.png.bd78dcd633836297df61d13babe5bf27.png

    Much easier & cheaper to upgrade, and you can have very fast pci-e drives as well. I have a USB 3.1 card for fast external storage. 

    A hackintosh is a good solution as well for adobe programs, but if you are working with FCPX then an iMac or Macbook pro should be your only choice. 

  5. I don't find it unlikely for sigma to be developing lenses for Nikon Z mount. 

    Sigma is planning on releasing several native E mount lenses as well. It would make sense to have a common lens design that is shared across mirrorless cameras with short flange distance. Same way DSLR series exist for 3 mount systems but they are practically the same lens. 

    This would be a golden opportunity for a lens company to enter a brand new mount system that will most definitely have very limited lens selection for the first couple of years, and it will be a good idea for Nikon as well to have plenty of choices for a new mount system. 

  6. 1 hour ago, sanveer said:

    1. Could Panasonic have changed the dual iSO settings from ISO400 and ISO800 to ISO800 and ISO5000 instead? What about an even higher ISO setting like ISO12800?

    1

    The dual gain depends on the capabilities of the sensor, so my guess is that by design that sensor is fixed to 400/2500. Changing that would require changing the analog circuits on the sensor. 

    1 hour ago, sanveer said:

    2. I think the whole 14 stops of dynamic range is most likely bad communication of the information regarding "2 Stops more Dynamic Range" (from usable ISO3200 to ISO12800) and interpreting it to mean from 12 stops to 14 stops.

     

    I agree. And that is the main advantage of this sensor, having a very good dynamic range in dim light. 

    1 hour ago, sanveer said:

    how is Sony able to extract 1-2 stops more dynamic range in their 8-bit video with much lower bitrate.

     

    With a linear scale such as RAW the bit depth directly translates to the stops in dynamic range. To get around that, non-linear functions change the input-output relation (gamma) and companies use different names for them (S-log, V-log, C-log..). Depending on the capabilities of the sensor and the bit depth of the file, the log can be more aggressive, by compressing more the highlight information. The bitrate does not affect dynamic range. So Sony could do it by a combination of sensor performance/more aggressive log gamma. 

    1 hour ago, sanveer said:

    Also, does the much slower read speed (indicated by the enormous rolling shutter) help with creating better dynamic range? If it is, could Panasonic use the same technology, thereby losing some rolling shutter advantage for more dynamic range.

    3

    No. That is only the case when you move to global shutter. 

     

  7. 2 hours ago, horshack said:

    Sony has had "dual native ISO" in their sensors going back to the A7s, and it's in the A7r II and A7r III as well. It's a pretty mature technology and was invented by Aptina - you can read the original white paper on it here: http://www.photonstophotos.net/Aptina/DR-Pix_WhitePaper.pdf

    If the "native" term is used as loosely as Panasonic marketing team then yes that is correct :) More correct is that dual gain has been around for quite some time, used by many cameras.

    Generally, native ISO should mean an ISO setting without any gain applied, but Panasonic defines two native ISOs as two base ISO settings that yield similar noise profiles:

    5a36e4bd0729b_ScreenShot2017-12-17at3_41_29PM.thumb.png.a163d4019aefe658e079ccc72a9fd263.png

    The varicams get the closest to actually having dual native/base ISO, but the EVA1 (and I am guessing the GH5s as well) does not (http://zsyst.com/2017/12/panasonic-eva1-first-look/):

    EVA-ISO.jpg

     

    Whereas the noise profiles from Sony cameras come very close (A7s is even closer to true native ISO than EVA1...):

    5a36e4cc13e91_ScreenShot2017-12-17at3_41_19PM.thumb.png.c5e811ed1c79553892ce15e3c9c708fc.png

    This tells you how well Panasonic plays the marketing game. 

     

  8. I am quite happy with the 24-70 f/4. Very decent quality but yeah the manual focus is bad. AF is fast and silent though.  The new 24-105 is also very interesting but a bit larger... 

    Personally I wouldn't buy any non-native general purpose lens cause the AF is so useful now. The FF Sigma is very good but with limited range, and once sigma releases native art lenses they will be a great choice. 

  9. @Emanuel The market for the GH5s is far smaller than the one for GH5, hence the price difference. Also, you have to factor in that the sensor in the GH5 is used across many models. 

    As for your concerns about IBIS, I can tell you with certainty that temperature affects the noise of the image, and placing a large heat sink on the sensor can give a much better image. For example, this is the heat sink that ursa mini is using:

    N6ZndDu.thumb.jpg.280df528f2fdde3c80c753b7b65b9f23.jpg

  10. 29 minutes ago, Dustin said:

    Will that machine be good for premiere pro? I had read a little about that intel/amd partnership. Sounds nice!

    In my experience Premiere works better with CUDA than OpenCL but you can always use an NVIDIA eGPU (if you can select the GPU in the latest premiere that is). 

    Unfortunately, we didn't see any laptops with the 6 core Coffee Lake-H, which would be optimal for Premiere. 

  11. 6 hours ago, ntblowz said:

    Did ryzen price cutting starting now?

     

    Yeah, I was expecting that after the latest Intel CPUs... 

    1 hour ago, Dustin said:

    All the  GTX 1060 6gb graphics cards are apparently in a drought as of today. Was looking online on the gpu tracker sites and the only ones in stock are ridiculously inflated at double the price. Not sure how we’re supposed to build video editing pcs with decent GPU’s when it’s tough to get a card at a decent price. 

    2

    Damn miners :innocent:

    @Dustin There is a new XPS15 with the new built-in vega card: http://www.zdnet.com/article/ces-2018-dell-announces-new-xps-15/

  12. Three great points for me are:

    1. For the same DoF, it looks like the GH5s offers similar noise performance to the A7sII. 

    2. The inclusion of an antialiasing filter. 

    3. Better rolling shutter performance

    What I would like to have seen is baked-in LUTs and of course, IBIS. This means this is not suited for my type of shooting, but for a more professional environment, this should be a fine camera. 

  13. The unethical part is the personal gain over another one's loss. Both the clown and the company are at fault here. 

    The clown did it for clicks which gave him more money. 

    YT also works on clicks. More moderation --> less people visit --> less money from advertisers. I would even put more blame on YT since it affects many more people than one lousy channel. And if you believe YT can't do much, think of how quickly & efficiently they blocked all copyrighted content. 

    And you can't argue against the widespread traumatic experience of showing content like that.  If you even believe that this will make people less suicidal, then you have it all wrong since psychological studies show that it only makes things even worse. 

    At the end, they both exchanged money for f*cking other people. 

    You can clearly see the difference between quality content and plain click-driven-shit when you compare the front page of Vimeo to the one of YT. 

  14. To tell you the truth, I am not that impressed by that laptop. 1050 is a good card but soon it will be a limitation and since there is no TB3 port you will be stuck. 

    Also, the lack of other high-speed ports is not great for video editing (USB3.1 gen1 max, you want gen2 or TB3). Personally, I would not get a laptop without a TB3 port. 

    If you like the ASUS aesthetics then the GL702VM line is much better and probably worth the extra money. You can find them cheap on eBay.  

     

    I will mention this again if you can wait few days until the CES 2018 (this Sunday). 

     

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