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Author Topic: 5dmkii june '10 firmware update for manual film control  (Read 8005 times)

CJRodgers

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5dmkii june '10 firmware update for manual film control
« on: February 18, 2011, 12:15:59 PM »
Hey!

Sorry this is a really noob question. Can you change the aperture on the 5dmkii whilst filming (to shift the DOF) with a canon L lens? Did the latest firmware update give full manual control to do that? Or do you still need a manual Lens with f stops on the ring to do it? Also if the firmware update allows you to do it, how smooth and accessible is it whilst filming? Anybody got any examples? I cant find any clear information i understand and its frustrating me!

Thanks again!

Craig

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5dmkii june '10 firmware update for manual film control
« on: February 18, 2011, 12:15:59 PM »

c-law

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Re: 5dmkii june '10 firmware update for manual film control
« Reply #1 on: February 18, 2011, 12:22:29 PM »
You can change the aperture while filming.

http://vimeo.com/4955625

It's not very smooth though.

Chris
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CJRodgers

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Re: 5dmkii june '10 firmware update for manual film control
« Reply #2 on: February 18, 2011, 12:24:10 PM »
Ok so do people generally still use manual lens for that mind of effect? Has there ever been a rumour of L glass with manual aperture control?

c-law

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Re: 5dmkii june '10 firmware update for manual film control
« Reply #3 on: February 18, 2011, 12:27:27 PM »
I'm not sure exactly what kind of effect you're after so I can't speculate but I'm fairly certain that there aren't any L lenses rumoured to have manual aperture control.

Chris
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CR Backup Admin

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Re: 5dmkii june '10 firmware update for manual film control
« Reply #4 on: February 18, 2011, 12:50:14 PM »
The 5D MK II will let you change the aperture during shooting if you are using full manual control.  The image will get darker or brighter, so if you are trying to change depth of field, you will also need to change the accordingly.

The 5D MK II is not a camcorder, and Canon specifically recommends that you do not change the aperture during shooting, but they allow you to do it if you want.

Grendel

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Re: 5dmkii june '10 firmware update for manual film control
« Reply #5 on: February 18, 2011, 02:26:55 PM »
IIRC the 5DII will drop about 3 frames while changing the aperature.

able

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Re: 5dmkii june '10 firmware update for manual film control
« Reply #6 on: February 18, 2011, 10:21:49 PM »
Using cinematography terminology, a 'fadeout' occurs when you stop down and a 'fadein' occurs when you stop up. The technique is used to perform a time transition where you move from one scene to another scene. A similar technique called a dissolve occurs when you put the lens out of focus in one scene and back in focus for a different scene. It too is used to perform a time transition.

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Re: 5dmkii june '10 firmware update for manual film control
« Reply #6 on: February 18, 2011, 10:21:49 PM »

FatDaddyJones

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Re: 5dmkii june '10 firmware update for manual film control
« Reply #7 on: February 19, 2011, 04:08:29 AM »
The 7D also allows full manual control during video to change the ISO aperture and shutter speed settings, but the changes are so drastic during shooting, you won't want to do it. Set the right exposure before shooting. Stop and change it each time the lighting situation changes (i.e. Indoor and Outdoor), although you CAN change it on the fly if necessary.
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Re: 5dmkii june '10 firmware update for manual film control
« Reply #8 on: February 19, 2011, 11:43:29 AM »
Fadein and fadeouts are best done in post.  Doing it with a camera lens is not going to be very satisfactory.  In post production, you can get it timed to the specific frame and can redo it until it comes out the way that looks best.

CJRodgers

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Re: 5dmkii june '10 firmware update for manual film control
« Reply #9 on: February 19, 2011, 01:43:27 PM »
Thanks for all your thoughts. I was wanting to mess about with an idea but was a silly thought I guess. I wanted to have a razor thin dof on a subject so the background was too blurred to really see what was there clearly. Then slowly put the aperture up to increase the size of the dof so that the subject would stay in focus and then the background would come into focus with the subject. But I guess light issues make this impossible. Thanks for ur time anyways.

c-law

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Re: 5dmkii june '10 firmware update for manual film control
« Reply #10 on: February 19, 2011, 03:43:06 PM »
If it were me, I'd try getting footage of the shot at various apertures/DOF as long as the frame was static with no movement and then cross fade the footage in post to get the same effect but without having to faff around with the lens.

Chris
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Re: 5dmkii june '10 firmware update for manual film control
« Reply #10 on: February 19, 2011, 03:43:06 PM »