How to make 5DM2 video with less noise in low light conditions?

stevely · Feb 2, 2009

I'm a newbie to this video thing. Just got my 5dm2 last week and have been playing around with the video. I shot in candle lit dinner with dim overhead lights in a restaurant and the video came out with a lot of noise like most videocams do. But I was wondering how some of those example video's like the Vincent Laforet sample can shoot so clearly in low light? I believe the iso was on 400 when shot.

Roy2001 · Feb 2, 2009

I think the key is to control ISO. I am hoping a hacked firmware would let us control everything.

mchahn · Feb 2, 2009

stevely said:
I'm a newbie to this video thing. Just got my 5dm2 last week and
have been playing around with the video. I shot in candle lit dinner
with dim overhead lights in a restaurant and the video came out with
a lot of noise like most videocams do. But I was wondering how some
of those example video's like the Vincent Laforet sample can shoot so
clearly in low light? I believe the iso was on 400 when shot.

You say "I believe". If the ISO display was 3200 and your speed was slower than 1/30, the real ISO could be arbitrarily high. I've measured ISOs up to 51,200.

Does the video look exposed properly, I.E. bright?

--
When the going gets weird, the weird turn pro. - Hunter S. Thompson.

seventn · Feb 2, 2009

Got mine 3 weeks ago and have been enjoying the video feature quite a lot! I've been doing the "disengage the lens" trick to get aperture to what I need it to be and it has been working great.

Shot a little bit in low light but am also getting lots of noise. I am also wondering how people are reducing this but I am starting to thing that they do have noise in their footage but maybe we can't see since we are most;y looking at the reduced size footage...

I tend to not ask video questions here cause people seem to hate that... Afraid of evolution.....maybe

xLnT · Feb 2, 2009

Has anyone investigated if the "C.Fn II -2 High ISO speed noise reduction" affects video?
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F

Mike Chaney · Feb 2, 2009

I think most of the clean low light videos you are seeing are being shot through super fast glass like f/1.4 to f/1.8 lenses. I don't know of any other way to easily reduce the noise.

--
Mike
Author: Qimage, Profile Prism
http://www.ddisoftware.com

stevely · Feb 2, 2009

It was fairly dim. I was trying to trick the aperture to open up, but I suspect it must have been wide open.

Scales USA · Feb 2, 2009

Certainly, you need a wide aperture lens, F2 or larger. Noise does not tend to show in videos apparently due to the motion, but it is there.

The videos I took at Christmas in available low level indoor light with a f4 lens look ok on my 24 inch monitor, but there is quite a bit of noise if you look closely. Being 15 inches away from a large monitor is the worst case. From a normal Television viewing distance, it looks great.

stevely · Feb 2, 2009

Here's a sample.

http://www.youtube.com/watch?v=_UAZgCw-tTw

The noise looks much less pronounced on youtube probably because of the reduced size. You can notice it somewhat in the skin. It's not crisp and sharp like the vincent video. I guess I will have to try with faster glass. I shot with 24-105 f/4L.

HCR21 · Feb 2, 2009

Above ISO 1000 I noticed increased noise too. I doubt it was ASA 400. Since ASA is adjusted first the camera drops to ASA 3200 before adjusting shutter and aperture. You can try pointing at bright or dark areas locking the exposure and use the exposure compensation wheel (which only affects ISO in movie mode) to adjust somewhat. But we need a firmware fix for aperture and ISO manual control.

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How to make 5DM2 video with less noise in low light conditions?

stevely

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mchahn

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seventn

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xLnT

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stevely

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stevely

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