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Canon EOS-R3 and manual focus lens IRIX 11mm aperture issue

Started 6 months ago | Discussions thread
PicPocket Veteran Member • Posts: 5,897
Re: Canon EOS-R3 and manual focus lens IRIX 11mm aperture issue

GrunRad wrote:

It seems that while IRIX EF lenses are compatible with the R, RP, R5 and R6, they are not with the R3, R7 and R10 cameras.

It says so in the IRIX (official?) blog post https://irixlens.com/2018/12/28/2158/ titled (rather misleadingly) "Irix lenses now fully compatible on Canon EOS R mount".

The blog post is from 2018, probably when R came out. They seem to have added the incompatibility footnote recently without any mention of such edit

Their 11mm f4 freezes R7 when trying to take photos, so completely unusable

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