- Aug 8, 2018
Another issue with mirrorless is ”instant on” to be ready to shoot. If an SLR has gone to sleep mode, it will wake and be ready to shoot almost instantly. The mirrorless take a lot of time for the EVF to wake.Myself as well, really. You've mentioned battery power and long term use of the viewfinder. That's not quite the only disadvantage, but it's the only one I can't see any way around and that isn't subjective. The other SLR benefits (so far) is less lag in the viewfinder, less "blank" time after taking a picture, and so on--I'm sure I'm missing a few. But those are all things that are improving, they aren't inherent to mirrorless, just aspects of something still in its early development. What's left? There are those who simply hate using an EVF. (Whether they are justified or not, the hate is there.)
I'm all-in on mirrorless, personally, though I won't spurn EF lenses. They will continue to serve one very useful role for the foreseeable future--they can be used on ALL Canon mirrorless cameras-- M and RF. How long that will impel Canon to continue to make them (not develop, but make) is another question entirely.