Canon R6—Anyone buying one for B-Cam/Gimbal?

drummondb said:
On the R6 (and presumably others) you can see the right of the histogram get crunched more and more to the left as you lower ISO below 400 while in C-log. You can also see it on the waveform scopes of the cinema line (the top getting chainsawed off below ISO 800 or 850).
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I think this happens on all cameras. As you go below base ISO, your dynamic range is increasingly allocated to the shadows. So, your exposure will come down but your highlights will still be blown out. If my highlights on my Sony cameras are blowing out at base ISO, then lowering the ISO will not bring them back.
 
cpreston said:
The base iso for clog-3 is 800 ISO on the R6. I would love to know whether the DR is dependent on the ISO or if it stays constant like the cinema cameras.
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You should be able to test this by checking out clip points. ON the C200 when you drop below ISO 800 you ae clamping the DR (in raw) It wont fill the histogram WFM any more. - like clips at 90 rtc.
 
drummondb said:
Have not taken to RF lenses at all. I've rented a few for the R6, and I bought the new RF nifty-fifty. Inexplicably, there does not seem to be a way to instantaneously pause the DPAF and tweak focus manually.
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I have focus acive/inactive (cant think of the stupid term) mappedd to the rear wheel centre button.

Maybe that just does 'focus lock' not actual manual focus though - I cant remember.

There are elements of this camera that are beyond clueless.
 
Just found another annoying quirk of the R6: if externally recording in HD, you are locked into a 60p signal, no matter the frame rate of the camera. And the signal doesn't allow pulldown to 24p or 30p. At least that's how it works on the Ninja V. If you're recording in 4K, the frame-rates work fine externally.

Can anyone confirm? Why does Canon do dumb sh*t like this?
 
Are you sure you're not in the HFR mode by any chance?

Also maybe check the HDMI output menu settings?
 
NorBro said:
Are you sure you're not in the HFR mode by any chance?

Also maybe check the HDMI output menu settings?
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Pretty sure. C100mkII works fine with the pulldown settings on a Ninja V. But no matter what I do, I can't change pulldown settings with the R6 via HDMI when in HD (not 4K). I've seen some others say the same thing. I'd need to call Atomos and/or Canon.
 
You shouldn't need any pulldown...should be pure 24p into the recorder.

I would be surprised if they limited it to a 60p output in 1080p, but I guess at the same time not that surprised.
 
NorBro said:
You shouldn't need any pulldown...should be pure 24p into the recorder.

I would be surprised if they limited it to a 60p output in 1080p, but I guess at the same time not that surprised.
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As far as I know, Canon has usually embedded 24p and 30p in a 60i stream for HD over HDMI. That's how the C100's work.
 
I am not positive what Canon exactly does in all of their cameras, but from a technological standpoint I would think that practice most likely ended around 2012/2013 probably with the C100.

That is very old technology and it's not necessary with modern equipment. It's probably still used in television though.
 
Just wanted to add that I have used many Atomos recorders (and VAs), and I never had to engage or set up any pulldown settings.

If by any chance this is a process that happens automatically then it could very well be that I have gone the last 8 years not even knowing it...because 24p was always 24p for me from every camera I used one with.

(I've never used the C100 with a recorder.)
 
This is from a support page from Atomos:

The majority of cameras (HD-SDI or HDMI) will output a 60i signal when set to Record/output 24P mode. This is perfectly normal, as not many cameras actually output 24P (Nikon and RED will). Most Sony, Panasonic and Canon cameras output a 60i signal which has the 24P signal embedded in it - this is known as 3:2 pulldown
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Lines up with my experiences. Only problem is Canon seems to have screwed something up on the R cams. Atomos page here:

https://atomos.zendesk.com/hc/en-us...tting-up-3-2-pulldown-on-your-Atomos-recorder
 
Maybe...but some of that text goes back as far as 2016 from a quick search.

Based on their syntax and using Nikon and RED as examples, it's possible that piece of text was even from the first Shogun (2014).

https://forum.nikonrumors.com/discus...kon-and-atomos

Resources online are usually recycled for a long time (even though it says the Atomos ZD article was updated 7 months ago...but that could also mean a few words).
 
ahalpert said:
AF/MF toggle
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That is not the name of the 'feature' Im using - its called something like 'AF pause'. Like I said Im not sure that then turns on manual. It is just an AF lock. Im not sure which if any button would take your from AF to MF - yes you can do that in page 473 of the menu but on an assigned button Im less sure!
 
I use the R5 as a B camera with my C300ll for interviews and they match well, filming with Clog 3 and Cinema Gamut . I have a couple of RF lenses, the nifty fifty and the 15-35mm for hand held or Ronin work with the R5. For interviews I use my EF lenses with adapter, the adapter has the ND wheel great for filming outdoor interviews, love the look of the 85mm 1.4 shooting at f2, auto focus on R5 is amazing , works well when doing one man band 2 camera shoots.

Jeff Cadge
Cadge Productions Inc.
 

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For interviews where I slate and let the cameras run I don't use 4K HQ.

I did a bunch of tests in my studio, 4K HQ etc.. yes there is a slight difference, but overall the 4k at 29.97 is acceptable, it never overheated on a job.

With B-roll on ronin I will switch to HQ because my arms aren't that strong. and shoot B-roll with 1DX Mark ll too. Clog3 in R5 is great, don't have that with 1DX.
 
jcadge said:
For interviews where I slate and let the cameras run I don't use 4K HQ.

I did a bunch of tests in my studio, 4K HQ etc.. yes there is a slight difference, but overall the 4k at 29.97 is acceptable, it never overheated on a job
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The R6’s 4K is better than the R5’s non-HQ 4K, making it the arguably better choice for 4K footage, especially now that it has CLOG3. If only it had all-I… although editing on an M1 Mac isn’t bad
 
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