I need some help on how to keep the ISO as consistent as possible when shooting a short film with the 5d mark III. How to do this?
Does it mean I set and lock the ISO at let's say: 160 ISO throughout the whole shooting? And change the aperture to match the ISO (and locked shutter speed at 1/50)?
Thanks, have a nice day,
I'd use M mode, lock the 1/50th (for most scenes), set the aperture to DOF you desire and then adjust lighting, ND filters and ISO as needed yourself (sometimes you might keep ISO more similar and just use a different DOF if you are afraid the scenes might not quite match in 'grain' and they really need to and things would be too extreme otherwise).