>>3400284Brightness, picture quality and focus evaluation. Lcd screen will be invisible in bright sunshine, and you won't be able to see what's in focus as well on it as on evf.
Now, know that there is a huge difference between cheap evf and quality evf. Some pnshoot and entry level mirrorless evf's are basically just small lcd screens with bad refresh rates. You won't even be able to asses for sure what's in focus without different tools. G5, A7III, is usually where you need to go to get really quality ones, for midrange I think only em10ii is in that category. Now with the next gen mirrorless from canon and expecially nikon, you start to see some really special stuff. Z7's is practically brilliant in the night.
