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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 17 Oct 2011 (Monday) 01:51
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10-22 on a FF or 1D?

 
EOS ­ mE
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Oct 17, 2011 01:51 |  #1

this is a 3 part question, so bare with me. :)

first, i read from other places on the web that you can remove the rubber piece at the back of the 10-22 and then use it on a 1D series. but question would it work on a 5D2?

secondly, once you remove it, would you still be able to use it on a crop camera like the 30D?

thirdly, if this is both true, could it be done to other lens like the 17-55 on a FF?

tia~


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Oct 17, 2011 02:16 |  #2

This isn't really a good solution. Apparently at 10mm the mirror of a FF camera will strike the back of the 10-22. Most of the EF-S lenses protrude too far back and their image circles are too small to cover the full frame anyway. A better solution for an ultrawide for both cameras might be to get a Sigma 12-24mm f/4.5-5.6 HSM lens. This one has an EF mount and will cover the frame for both cameras.

You might think that you could just crop a new rectangle from a lens with too small of an image circle which is true, but the dark corners mess up the metering unless you use partial metering or spot metering so that they are excluded.

The only somewhat useful use of a EF-S lens on a full frame camera would be the EF-S 60mm macro when mounted on an EF 12 II or EF 25 II extension tube to provide clearance. You don't need to modify the mount. In this situation there will not be infinity focus but it will cover the full frame and gives great close-ups.


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Oct 17, 2011 02:29 |  #3

thanks soo much for the tip. looks like sigma might be getting my biz for ultrawide.. :)

yea i read most ppl stop it at 12mm to prevent the mirror from hitting the 10-22. looks like with the sigma you suggested, i wouldn't have to worry about that at all.

do you have a link to this lens you mentioned; especially with EF mount?


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Oct 17, 2011 02:34 |  #4

http://www.sigmaphoto.​com …12-24mm-f45-56-dg-hsm-ii1 (external link)
and
http://www.sigmaphoto.​com …45-56-ex-dg-asp-hsm-sigma (external link)


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Oct 19, 2011 01:26 |  #5

oh sweet...............


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10-22 on a FF or 1D?
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