The Canon 50mm f/1.8 STM is a solid, low-cost, normal-range prime lens. Key features include:
f/1.8 aperture
Fast, smooth autofocus
Compact build
Great value
Nifty Fifty. A classic focal length, the 50mm is widely used for just about every type of photography. It offers a field-of-view similar to what the human eye sees with no distortion.
Fast Aperture. The f/1.8 aperture allows both the ability to shoot with a shallow depth-of-field, as well as in lower lighting conditions.
STM Auto-Focus Motor. The STM stepping motor provides fast, smooth operation for both still and video use. It supports the Movie Servo AF mode found in several DSLRs enabling continuous focus while recording. There’s also a AF/MF switch for quickly swapping modes.