Best Overall
Tamron 17-70mm f/2.8 Di III-A VC RXD
Key details
- Mount
- Sony E
- Weight
- 1.2 lb
- Focal Length
- 17-70mm
- Max Aperture
- f/2.8
A zoom that holds f/2.8 from 17mm all the way to 70mm is a different proposition from the f/3.5-5.6 kit lens most Sony APS-C bodies ship with, and it's why this is the lens we recommend first to almost anyone building a Sony kit. The wide end is genuinely wide, the long end is long enough for a head-and-shoulders portrait, and the aperture doesn't shrink when you zoom in. We noticed it most indoors, where the extra light keeps the shutter speed usable and the autofocus still locks on.
Optically it holds up wide open. The center is sharp at f/2.8 and the edges catch up by around f/4, so you can shoot at the aperture you paid for instead of stopping down out of caution. The RXD motor is quick and quiet, and the stabilization is the other half of the low-light story: handheld frames at dusk came out clean, and the video-specific VC tuning is a real advantage if you shoot clips as well as stills.
Two details earn their keep in daily use. The fluorine coating on the front element wipes clean with a sleeve, which matters more than it sounds near water or dust. And the nine-blade diaphragm keeps background highlights round rather than hexagonal when you open up.
The close-focus figure is the one that surprises people: 7.5 inches at 17mm, close enough to fill the frame with a flower or a coffee cup while still keeping the wide end's perspective. It's the reason this lens stays mounted on our own Sony bodies instead of living in a bag.
Pros
- Constant f/2.8 through the whole range
- Sharp wide open in the center
- Stabilization holds up handheld at dusk
- Focuses to 7.5 in. at 17mm
Cons
- About 1.2 lb and front-heavy on small bodies
- Stops at 70mm, so no reach for field sports
The zoom we recommend first for Sony APS-C: a constant f/2.8, sharp wide open, with stabilization that makes indoor and evening handheld shooting realistic.