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Grainy clip fixes
I have a clip I shot with a Canon 5D Mk 3. It’s grainy and I’m wondering if anything can be done about it, and also what caused it. Here’s the clip: https://vimeo.com/693131097 When I shot this, the camera was under a OneTakeOnly ipad-based teleprompter, which always means I have to turn up the ISO a bit, especially for a dark skinned subject. But the ISO was still only at 800, which doesn’t seem high enough it should cause this level of graininess, although that’s all I can think of. (I also had a second camera, which wasn’t under the prompter attachment’s hood and had a slightly lower ISO, that didn’t have the same graininess.) So my 2 questions, on which I’d be grateful for any feedback, are: 1) can anything be done about this? (FYI, for me at least, filters like ‘Remove Grain’ seem to only make the whole shot soft, and I’d rather have a little graininess than softness. Maybe others have different solutions, or there’s some trick to using that effect I don’t know.); and 2) what caused this? Was it the ISO being at 800?
Thanks, Neil
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8 Replies
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you could try the trial of neatvideo or topaz
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Thanks Chris! Will definitely do that Neat Video trial, to start, and appreciate the suggestion. Do you happen to know if it’s better to do the trial/use this plug-in in AFX or PPro?
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+1 on Neat Video. The shot you shared should get good results. The trial shows you a result within a box if memory serves. So after doing a test, you will need to purchase it in the end. But it is worth it for the price. Note that it increases render times quite a bit. I have found it to be more effective with render times in Resolve over Premiere.
I have a Canon EOSR which uses a similar sensor to the 5DMK III from what I have read. Best to keep it at 400 iso in my experience. I tend to lean to higher exposure when looking at the histogram as brightening or bringing up the shadows in post tends to make it noisy. It is 8 bit color. Not a lot of room to play with. But I can get some pretty nice results if I follow those guidelines in my experience.
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This is all extremely helpful, thanks Kelly! Just one related question, on your exposure/ISO point, if you or others happen to know this: What you said about keeping the ISO at 400 max is very interesting. In terms of controlling exposure, I only have a Zoom lens for this camera, and its lowest F-stop is 4. And that’s where I had it for this shot. So I don’t know how I can increase the exposure (using my current camera and Zoom lens, at least; and my set was already pretty bright) without increasing the ISO more than 400, especially when my camera’s under the hood for this pad prompter. Any last thoughts there? Will a Zoom lens like this simply not work, and inevitably lead to this kind of grainy footage (unless I’m outside)? I find using a Zoom lens more practical, as a one-man-band who needs the flexibility it gives me, although I know there are prime lenses with lower F-stops.
Thanks again
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I use my zoom all the time for the reasons you speak. Way more flexibility. From my research and experience 400 ISO is the sweet spot for my camera. Does that mean I have to go above that, for sure. I just know then that more grain will likely show. I’m usually just run and gunning b-roll footage for my own personal needs and to help the wife out with her real estate marketing uses. My bread and butter making a living is as an editor. If I were more pro focused on the production side then I would likely invest in cameras and lenses that have greater range and latitude. I like the EOSR for the still shooting more than for the video use.
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Gotcha and makes great sense! Many thanks again Kelly, for sharing these helpful thoughts, and it’s always cool to hear someone else’s video-making experience
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Had a related question after purchasing and using Neat Video a bit, and am grateful if any Neat Video users, in particular, could comment on potential adjustments to that plug-in’s settings. On my first stabs at this, I noticed a difference of course but still have plenty of issues in my video, particularly blotchy artifacting that looks pretty bad, and there’s still some grainy ‘noise’ as well. Here’s how the video stands now https://vimeo.com/692017790, and you can see these issues in the first 30 sec or so: I tried to refine Neat Video settings related to Artifacting as well as turning the ‘Noise level’ way up, and also watched tutorials on using Neat Video in Advanced mode. Perhaps I’m doing something wrong or not applying this effect quite right. I’m grateful for any advice there on adjustments to potential Neat Video settings that might help. Maybe my footage is too flawed to fix even with this PPro plug-in. But I know many of you think highly of Neat Video. So these issues may be more due to ‘user error’ in how I applied it.
Grateful for any thoughts.
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Related to the Neat Video settings, I notice the default for the ‘Noise Level’ under the Spatial tab is always at 0%, and I don’t notice that much of a difference when I raise it. What exactly does that control? (if anyone happens to know that) Because it seems like the effect shouldn’t have any impact if it’s at 0. But it still does.
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