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Cannon 5D


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#1 Rachel Dargavel

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Posted 13 October 2010 - 12:21 PM

Hi, I am currently half way shooting a feature film on a Cannon 5D Mark II. Its had its problems but up to now all the rushes look good. We've just set up for a shot using the 18mm CP2 lens and we are experiencing very bad Vignetting, not caused by the Matt Box but by the lens itself. My guess would be that the sensor is too big for the camera and therefore we can see the lens and that nothing can be done.

Has anyone else experienced these problems and can anything be done?

In simple terms please.

Thanks, Rachel.
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#2 Joel VanZeventer

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Posted 13 October 2010 - 01:11 PM

It isn't that the sensor is too big for the camera, it is that that particular lense is not suppose to be used on full frame sensor cameras like the 5d mark ii. This particular 18mm lense is for ANSI super 35 and normal 35 image format and would work better on something like the 7D. Only the CP.2 lenses with focal lengths from 21 - 100mm work without vignetting on the mark ii and are made for full frame cameras. If you need to use this lense without the vignetting problem put it on a 7D.
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#3 Oliver Christoph Kochs

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Posted 13 October 2010 - 06:09 PM

You should try the Canon 17 TS. Excellent lens.
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#4 Saul Rodgar

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Posted 13 October 2010 - 08:37 PM

It isn't that the sensor is too big for the camera, it is that that particular lense is not suppose to be used on full frame sensor cameras like the 5d mark ii. This particular 18mm lense is for ANSI super 35 and normal 35 image format and would work better on something like the 7D. Only the CP.2 lenses with focal lengths from 21 - 100mm work without vignetting on the mark ii and are made for full frame cameras. If you need to use this lense without the vignetting problem put it on a 7D.


Yup. The 5D mkII is a full size sensor camera (6 perf 35 mm) and your lens is designed for APS-C size sensors, which are closer to S35mm aperture. Some extremely wide angle zooms (18-28mm) designed for the APS-C sensor will vignette on the 5D at the widest setting, but will be fine closer to 22mm. Still incredibly wide angle, IMO.

Edited by Saul Rodgar, 13 October 2010 - 08:40 PM.

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#5 Mitch Gross

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Posted 14 October 2010 - 09:36 AM

The above notes are correct. The 18mm Compact Prime is the only one of the set that does not cover the 5D sensor. Zeiss is very clear about this.
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