Central sharpness is very good at f/1.8 and f/2, excellent from f/2.8 through to f/5.6, very good from f/8 to f/16 and fair at f/22. The edges are good at f/1.8 and f/2, very good from f/2.8 to f ...

Canon RF 50mm f/1.8 IS STM – Canon's must-have prime is also its cheapest. It's nowhere near as advanced or optically impressive, but it's truly tiny and is also stabilized – helpful if you don't have ...