androidlad

On 10/13/2018 at 5:18 PM, Matt Perks said:

Here's a video demonstrating the problem with LUTs (and yes, it renders them unusable).

 

https://www.youtube.com/watch?v=j6EcowEtA9c

 

OMG you're the DIY perk guy!! I'm a huge fan! Every time I see LED lights I think of you ?

1 minute ago, Dan Sherman said:

who the hell shoots 60p at 1/60th?

last time I checked you wanted to be shooting at 1/125th, unless you wanted to deviate from the 180 degree rule for artistic reasons.

We are talking about sensor readout, not shutter speed.

4 minutes ago, Dan Sherman said:

in regards to RS/"motion blur" fps means nothing.   For video RS is going to be driven primary by shutter speed/angle, and to a lesser extent how fast the sensor read time is. 

fps means a lot.

In order to get 60 frame per second (which is 1000 millisecond), the sensor readout/rolling shutter has to be minimum 16.7ms per frame (1000ms/60).

X-T3 4K 60P rolling shutter is exactly 16ms to meet the bare minimum.

For EOS R's 4K 30P cap, 33ms is the bare minimum.

Just now, Danyyyel said:

And then you have to discard conform all your footage, what about the doubling or tripling of the amount of data etc.

Data-rate can be the same, on X-T3 you can choose 100Mb/s for 4K 24p to 60p.

1 minute ago, Danyyyel said:

What, so you would be ok with that level of RS if it had 4k 60p... That's crazy, I would prefer an A73 or Nikon z6/7 to that anyday, at least 90% of my shot are not slowmotion and this thing would need to be static on stick to be anything usable.

Actually, 60P forces the camera's to have lower RS, because 1000ms/60=16.7ms

It was tested a while ago, 30.45ms rolling shutter in 4K.

2 hours ago, Vision said:

I got even worse issues when i preview my luts (vision color) or Impulz Premiere or after effcts freeze up and crash for no reason 

 

So far it has been quite reliable for me and there's definitely a performance boost. 2019 updated the GPU acceleration engine, have you updated your GPU driver?

I got a response from Atomos saying they are going to get a loaner X-T3 to investigate. I'm kinda surprised they didn't test it with the actual camera before product launch...

Sony will announce something on the 16th, might not be A7SIII related though.

Adobe just released massive updates to the Creative Cloud apps. I'm thrilled to say that Premiere Pro performance with X-T3 H.265 HEVC files has been significantly improved!

11 hours ago, Andrew Reid said:

At ISO 1600, again surprising.

Canon LOG on the EOS R is virtually noiseless, very smooth indeed, with abundant colour info.

The X-H1 shot, same ISO, F-LOG, has more noise in the blacks and a harsher look overall. Why does Canon LOG keep so much colour info and the warmness of the light, whereas F-LOG washes it out?

EOS R:

Fuji X-H1:

Because Canon Log stays in BT.709 gamut while F-log uses BT.2020 gamut, without correct mapping the F-log shot would appear extremely dull.

I believe EOS R can also output BT.2020 externally.

I'm thrilled to say that Metabones just confirmed in an email that they are working on EF-X Speedbooster and some other new products!

Around A7S III announcement, Sony may also announce their own set of "focal reducers" for pro video products, seems to be called "compressor", E to E mount for use on Super 35 E mount camcorders. If used on E-mount mirrorless such as A6500, PDAF points will be limited to 144.

58 minutes ago, Attila Bakos said:

Does someone have the Zhiyun Crane and the X-T3? The remote jack is on the right side on the X-T3, so the Panasonic cable included with the gimbal is just the right size, however it can't start video recording, or take images. You could of course say that it's meant to be used with Panasonic, but a friend of mine has a Moza AirCross and it works flawlessly with the X-T3 using the included Panasonic cable. I already asked Zhiyun, but maybe some of you can help.

Did you set the stabliser setting in the app to Panasonic? Did you connect the microUSB to the tilt motor? Did you power on the gimbal first before the camera?

Another example showing the discrepancy between internal log recording and Ninja V recording, pretty drastic!

1 hour ago, zerocool22 said:

Im def going the pocket 4K route, as its the perfect bcam to my ump (and I dont have to color correct different cameras anymore). I dont care about AF. I sometimes do editing jobs, and I often get gymbal/slider AF shots in that are unusable. They are flying around and suddenly a pole appears in front of the camera, the focus shifts to the pole. Congratulations the shot is ruined.  

I agree RAW is too big for casual work, but blackmagic raw does fix that. Smaller files that are fast and give a raw workflow. That feature alone is worth the pocket 4K alone for my taste of shooting. Allthough MFT is a small sensor there is a easy way around that with a speedbooster. 

But then again this is my perspective. I would def go for the X-T3 if i had more photography jobs though. And you prob can use a speedbooster on the X-T3 as well making it a full frame camera. 

Why not Z CAM E2? Same sensor as Pocket 4K and much more feature set. It's shipping now.

37 minutes ago, no_connection said:

Looks like auto ISO is useless in video of that is important to you.

 

It was a slip of tongue. He meant auto iris was stepped. auto ISO on X-T3 is completely smooth (I have it and tested), X-H1 fixed it with a firmware update. There's no way for FUJI to take a step back on X-T3.

33 minutes ago, padam said:

It not going to output RAW, plain and simple. Because it is going to be much more megapixels than most lower-end RAW-capable cameras, the signal has to be processed and scaled down internally to produce a 10-bit 4:2:2 4k output.

It is going to. With the add-on units.

1 hour ago, wolf33d said:

Proof that these rumors are BS. What this has to do with A7S...

What's BS about that? The add-on unit(s) allow A7S III to interface with AXS-R7. The previous post was a rundown of total cost for full blown RAW workflow.

I wouldn't even call it rumour, as it's part of NDA lifts, we'll see more soon.

Insight from Thomas Smet over at Dvxuser:

Quote

This has been an issue ever since we have had monitors and external recorders and Atomos absolutely refuses to do anything about it. I have emailed them, called them, others have begged on forums and Atomos doesn't believe its an issue so they will not do anything with it. We have been asking since the Ninja 2 and the response is always dancing around the issue and never really answering why they will not address it.

Thank goodness Panasonic has enough brains to allow users to select if they want 16-235 or 0-255 for the HDMI output but alas it doesn't work when shooting v-log and the camera is forced to use 0-255 which makes external recording not correct.

I honestly don't know how/why so many in the industry ignore this. Almost every review of external recorders I have ever watched on YouTube incorrectly thinks the recorder or ProRes just create darker video. The utter lack of understanding of this issue and the rabid spread of misinformation out there is enough to make me curl up into a fetal position in the corner of a dark room and cry myself to sleep.

Yes there are solutions in post and I have created my own lut and FCPX effect to deal with this but that still doesn't help how the image looks on the monitor while shooting. I know this because again thanks to Panasonic I can switch my camera back and forth between 16-235 and 0-255 and see how crushed the video looks on the monitor when using 0-255. This can lead to exposing the image incorrectly and attempting to over compensate for the added contrast and crushed dynamic range. While its a life saver to have solutions in post in 2018 we shouldn't have to deal with this issue anymore. Since the vast majority of external recorder users out there likely use a camera stuck at 0-255 Atomos needs to get their act together and add in a feature to correct the signal on input to the device.

36 minutes ago, chadandreo said:

I own both and in my opinion the X-T3 is a superior camera, especially is you’re going to use it for photography. 

I don’t know what test people have been doing in which the GH5 non-s low light performance is on par or even better than the X-T3. I have gotten usable footage out of the x-t3 at iso 8000 and 12800, whereas I could never go above 3200 on the GH5 without having to use Neat Noise.  

The main advantages of the GH5, is the flipout screen, better battery life and 180fps in 1080p. 

I think people are comparing GH5S with X-T3, not GH5.

4 hours ago, thebrothersthre3 said:

I looked it up, its a 1.29x crop, so with the 1.5 crop its 1.79

Still better the an M43 camera shooting 24fps. 

Maybe you are thinking of the BMP4K which is a 2.7 crop or something like that.

X-T3 120p has 1.28x crop.

1.5 x 1.28 = 1.92x relative to FF

It's multiplication, not addition.

1 hour ago, kye said:

Great thread.

Wouldn't it just be a matter of bitrate though?  120 is difficult in those busy deep DoF shots because the amount of data available for each frame is low and the IQ suffers accordingly because there's so much information in the frame to try and fit into that limited data.

I never understood why manufacturers didn't just scale the bitrate up with the frame rate - the idea of slow motion is to conform to the native frame rate..  

Regarding HFR bitrate, it doesn't need to be very high because HFR footage have very small motion difference in between frames, which is highly efficient for interframe compression.

X-T3 does 120P at 200Mbps Long GOP, and ALL-I is not available for HFR including 4K 60p, likely due to processing power constraints.

All of the E2 footage released so far have that home video look, with an off-the-shelf sensor IMX294 it's hard to tune in the right colour science.

3 minutes ago, Oliver Daniel said:

I think the A7SIII will fold out to reveal a built in A7III and A7RIII, shoot with all 4k cameras at once to create a 12k image! Could see that taking off! ?

In all honesty,  I think the A7SIII will have 4k60p (S35 cropped), 10 bit external, PDAF, windowed HD 240fps, few more MP and one surprise thrown in. 

I think they could have took the A7S III back into development due to the new Panasonic offering. 

In conclusion, there’s so many cameras now, that it’s not really that important anymore. GH5 going nowhere. It’s working. All is good. 

4K 60P full readout, 4K 120P 1:1 crop.

19 minutes ago, crevice said:

Some more impressive footage here :

 

Pretty impressive except for the harsh blownout highlights outside the car window, most camera will struggle with this so from a production standpoint, they could have put a sheet of ND gel over the window to bring the highlights down a bit.