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R3 lenses before R5 may require firmware upgrade or not supported

Started Sep 19, 2021 | Discussions thread
GrunRad
GrunRad Regular Member • Posts: 118
Re: R3 lenses before R5 may require firmware upgrade or not supported
5

Will T wrote:

Read bottom small text!

It says lenses before R5 may require firmware upgrade or not supported?????

When R5 and R6 were released, new firmware versions were also provided for most RF lenses (at least for those with IS). I understand (and the release notes confirm) that these firmware versions are required for proper co-operation of lens IS and camera IBIS. 
First thing I did when I got my R5 was to make sure that all my RF lenses had their latest firmware installed (which took less than an hour for a few lenses).

 GrunRad's gear list:GrunRad's gear list
Canon EOS 5D Canon EOS R5 Canon EF 8-15mm f/4L Fisheye USM Canon EF 40mm f/2.8 STM Canon EF 24-70mm F4L IS USM +9 more
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