Best Overall
Canon EF 50mm f/1.8 STM
Key details
- Mount
- Canon EF
- Weight
- 5.6 oz
- Focal Length
- 50mm
- Max Aperture
- f/1.8
Of the eight lenses here, this is the one we put in a first-time prime buyer's hands, and not because it is the sharpest or the fastest. It weighs 5.6 ounces, so it disappears on the camera, and at f/1.8 it does the thing a kit zoom cannot: it pulls the background out of focus and lets you shoot indoors without a flash. On a full-frame body you get the classic 50mm view; on an APS-C body it behaves like an 80mm, which is why so many people end up shooting portraits with it.
Sharpness is not where it gives ground. The center is crisp wide open, and by f/2.8 it is crisp almost everywhere, with a seven-blade diaphragm that keeps background highlights round instead of busy. The detail we did not expect at this price is close focus: 1.15 feet, with 0.21x magnification. That turns it into a real lens for food, flowers and small objects rather than only for people.
The motor is the compromise. Canon's stepping drive is smooth enough for video and quick in good light, but aim it into a dim room and it hunts, and focus noise climbs with it. We noticed it most at night indoors, which is exactly when the f/1.8 aperture is the reason you brought the lens. If you shoot moving subjects in low light, plan around it. Everyone else gets a lens that stays mounted because it weighs nothing.
Pros
- 5.6 ounces, so it stays on the camera
- Sharp wide open with soft, round bokeh
- Focuses to 1.15 feet for close-up detail
Cons
- Hunts and gets noisy in dim light
If you shoot a Canon DSLR, this is the easiest lens purchase to justify: light, sharp, gorgeous at f/1.8, and only slow to focus in dim rooms.