Tested 5DMKII w/ Nikkor glass and shot video w/manual aperture

Tested the following at ISO100 from a tripod mount at widest apertures. I used Fotodiox mounting ring.

Nikkor 28mm f3.5
Nikkor 50mm f1.4
Nikkor 105mm f2.5
Nikkor 135mm f2.8

I shot a video with the 105 to test what would happen with manual aperture control. Interesting what the camera can and can't do.

The glass works great with the camera, now a Haoda split screen and I have 4 more primes that don't collect dust.

LINK TO SAMPLES AND VIDEO BELOW

http://web.mac.com …or_manual_focus​_lens.html


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Oh sweet - one of the first things I thought of when I read about how video on the 5DMKII works was 'this would be sweet with some old MF glass'. That Nikkor 105 2.5 is a real screamer.

You need to keep up the "shutter" speed to keep the exposure. Once you got past a certain point, exposure couldn't keep up, so it was the first to change on the manual aperture tests.

The glass in great for taking pictures. Unless you have a split screen it would be useless for walking around. You really need to be tripod mounted and use the 5x or 10x in live view to focus.



I still don't have enough data to say FOR SURE what you can and can't do other than IT WORKS fine.

syntrix wrote in post #6996554
You need to keep up the "shutter" speed to keep the exposure. Once you got past a certain point, exposure couldn't keep up, so it was the first to change on the manual aperture tests.

160th maybe. I think you are right about a limit on shutter speed.

good work..

do you know if theres a difference if your in exposure simulation or movie mode in the live view function settings?

i know when i forced f8 in a poorly lit room (by twisting off the lens while dof previewing at f8) i had a noisy image but uniform exposure (as in it bumped the ISO right up to compensate...) maybe it did this in your video up to a certain point but wasnt obvious, seemed to have an exposure set for widest aperture and then as you stopped down it didnt adjust exposure - does it if you stop and start the video?

just wondering - although its of little importance to change apertures mid shoot - but i really do like the idea of some aperture control... even if its 2 stops of real aperture change so you can shoot 5.6 indoors or force say f4 or 5.6 outdoors instead of f8 or 16...

i dont care about noisy video images... it seems at their worst they arent too bad...

Super-Nicko wrote in post #6997246
good work..

do you know if theres a difference if your in exposure simulation or movie mode in the live view function settings?

i know when i forced f8 in a poorly lit room (by twisting off the lens while dof previewing at f8) i had a noisy image but uniform exposure (as in it bumped the ISO right up to compensate...) maybe it did this in your video up to a certain point but wasnt obvious, seemed to have an exposure set for widest aperture and then as you stopped down it didnt adjust exposure - does it if you stop and start the video?

just wondering - although its of little importance to change apertures mid shoot - but i really do like the idea of some aperture control... even if its 2 stops of real aperture change so you can shoot 5.6 indoors or force say f4 or 5.6 outdoors instead of f8 or 16...

i dont care about noisy video images... it seems at their worst they arent too bad...

1. no I do not know if there is a difference.

2. it will adjusted the exposure until about f8 and then it either runs out of ISO or shutter speed. I think it is the latter.

You can set the aperture this way without a lens twist:

http://vimeo.com/25301​66

It's not a bad idea but is also takes more time or the use of ND filters.

The reason, other than adding 4 more lens to choose from, for doing this is that shooting video with these lens allows quick changes to the aperture and they are LITE to carry and smaller in size. This means a simple simple study cam rig will be easy to carry.