This is a single-focus lens known as Canon's famous "bait" lens. It's an inexpensive single-focus lens that allows you to take pictures with a shallow depth of field. It's a tempting lens with excellent cost performance, so much so that it's said that if a beginner wants to take pictures with this lens without spending a lot of money, it will lead them to buy a Canon camera = it's a "bait." Canon's EF 50mm f/1.8 lens is perfect for portraits and everyday photography with its bright aperture and compact design. - Brand: Canon - Model: EF 50mm f/1.8 - Focal Length: 50mm - Aperture: f/1.8 - Autofocus Function: AF/MF switch Thank you for viewing. Size: Canon EF mount