E-M5 w/Canon 70-200 2.8L IS II Samples (full res)

Started Apr 21, 2012 | Discussions thread
rrr_hhh
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Re: Has anyone tried the newish Canon L 70-300/4-5.6 IS USM with the OMD please?
In reply to Staxxx, Apr 21, 2012

Staxxx wrote:

I have this lens for use with my 5D2 but do not have a m43 canon lens adaptor for the OMD, hence this request please. Curious to see how the IBIS copes and the exposure issues that may arise.

The first thing you have to know is that most Canon lenses don't have diaphragm rings to change aperture, so you won't be able to change aperture when you adapt them on an mft body. It means that you will always have to shoot them at their widest and often not the best aperture.

There is a work around : you put the lens on your camera, you set the aperture and dismount the lens without setting the Camera off. So the lens will keep the aperture it has. Only problem, you will have to bring your Canon body with you. So why then shoot these lenses on the mft body. May be it can be interesting to extend the reach of tele lenses ? but then manual focus will be quite difficult to achieve.

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rrr_hhh

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