HELP!!! Basic video recording question (5D Mark II)

Hi guys,

I almost never use the video function on my 5D2...however, I'm on vacation and I don't have my manual, nor do I have time to mess around with it.

When I go to record video, I set the shutter speed and the aperture...but as soon as I hit the record button, the thing auto-corrects for lighting...I don't want this. I want it to record with MY shutter speed, aperture, ISO settings...how do I prevent the camera from making changes?

(It's really messing up my night videos).

Thanks,
Tamas

Depending on frame rate you are limited to a shutter speed that at the theoretical MINIMUM can be 1/frame rate. You are not going to be able to hit that of course as there are things that have to happen between frames when the shutter is "closed" I would think that with 25fps video you are going to be limited to a minimum shutter speed in the region of 1/30" or faster. I think you will need to set the camera to Manual exposure mode, with Auto ISO off. You will of course need to have the shutter speed set to at least the minimum value. If you really need longer shutter speeds because you do not have enough light/aperture available then you will need to reduce the frame rate to compensate.
If you are using one of the semi auto exposure modes then you might want to ensure that any safety shift feature is also turned off.

I cannot really help any more than this as last time I did any cinematography it was with Super 8 film shooting on Kodachrome 64.

Alan

From Wikipedia:

http://en.wikipedia.or​g/wiki/Canon_EOS_5D_Ma​rk_II

Big Al: Thanks...I'll check what framerate I'm at (how do I check that??), though I'm pretty sure I had it set at 1/60th of a second, so that should have been okay regardless of the framerate...and sorry, I forgot to mention, this is in Manual mode, Auto ISO off, and all safety shift features are off.

ovf: thanks, but I have the latest firmware

It's normal to shoot at twice the framerate ie 25fps then 1/50 if 60fps then 1/125 is near enough. You then adjust the Aperture and ISO to get the correct exposure. If you want a wide aperture to seperate the subject and ISO 100 is still overexposing at 1/50 say then you would normally use a nuetral density filter to get back within limits.
You can however shoot at a faster shutter speed but the video will look a bit choppy. The opening sequences of Saving Private Ryan was done like that for effect.

artyman wrote in post #15493309
It's normal to shoot at twice the framerate ie 25fps then 1/50 if 60fps then 1/125 is near enough. You then adjust the Aperture and ISO to get the correct exposure. If you want a wide aperture to seperate the subject and ISO 100 is still overexposing at 1/50 say then you would normally use a nuetral density filter to get back within limits.
You can however shoot at a faster shutter speed but the video will look a bit choppy. The opening sequences of Saving Private Ryan was done like that for effect.

Thanks, I got all of that...(I've read the 1/ twice the frame rate, so that's what I've been doing, I'm pretty sure I'm at 25 fps, so I usually do 1/50 or 1/60 of a sec)...

My problem is that when I do all of that in manual mode, if the camera thinks it's underexposing, it STILL compensates by bumping the ISO sky-high (I'm not on Auto ISO), and makes the videos look all grainy/improperly exposed for what I want.

I just need to find out how to get the camera to leave my settings alone...

Have you got the exposure overide set, where the camera alters shutter and aperture if it detects an incorrect exposure. I can't recall what it's called at the moment, suggest a quick read of the manual.

Maybe this?

oldvultureface wrote in post #15495067
Maybe this?

Ahhhh...that's it!! Thanks That's really odd, though...why would they do that??

LowriderS10 wrote in post #15497832
...why would they do that??

To give us POTNers something to mull over.

Does this help whilst you are away http://www.bfm.ee …S_5d_mkII_User_​Manual.pdf