To allow for the more compact size compared to the EOS M5, Canon has had to make a couple of design changes, like ditching the electronic viewfinder (EVF) and compromising on physical controls.

Three special focusing screens have been developed for the 40D: the Ef-A Standard Precision Matte, the Ef-D Precision Matte with Grid ... which are reproduced from a Canon White Paper on the EOS 40D, ...

One notable upgrade is the capability to control the autofocus with your eye while looking through the viewfinder, a feature the R5 Mark ii shares with the even pricier Canon Eos R1. On paper ...