Canon Community

Hi AllI mainly photograph birds (often small) and own the 400mm DO ii (also the RF 100-500).   I have been very happy with the 400 DO II, even with the 1.4 iii extender.  However, I'm looking to move to something with a little more reach that will ta...

I'm having an issue with my 80D where I get a message on the screen every time I go into live view. The message reads "This function is not available during live view shooting" or "This function is not available in the movie shooting mode" depending ...

Has anyone taken a close look at the image quality and usability(focusing etc) of the Canon 800mm f11 vs the Sigma 150-600's with the 1.4 TC? I own the Sigma and am considering the 800 as a lighter native RF option with an EOS R. thanks in advance