The Canon EF 50mm f / 1.8 STM small ‘nifty fifty’ enhances Canon’s older designs and has been updated by incorporating a Stepper Motor (STM) for smoother, quieter AF.
Compatible with full-frame DSLR and APS-C, it becomes a very practical and creative short telephoto lens equivalent to 80mm when connected to the latter.
If you like portraits or any subject you want to create attractive background blur, this lens lets you do it without breaking the bank. It has a smaller 49mm filter thread and improved build quality over Canon’s old EF 50mm f / 1.8 II, but produces results of similar quality.
Stopping from f / 1.8 to f / 2.8 improves sharpness and all traces of bullets disappear at f / 4.