We test the first third-party standard zoom for the Sony's full-frame mirrorless cameras

Packing cutting-edge technology into a compact body, Tamron has created a high-speed zoom lens specifically designed for mirrorless cameras: the 28–75mm F/2.8 Di III RXD (Model A036).

The 28-75mm F2.8 Di III RXD is Tamron's first ever lens for Sony's range of full-frame mirrorless cameras. This new standard zoom features a constant aperture of f/2.8 throughout the range, an impressive minimum focus distance of 0.19m, an all-new RXD (Rapid eXtra-silent stepping Drive) focus motor...

Generally speaking, I'm not one to like zoom lenses; but when I considered what the Tamron 28-75mm f2.8 Di III RXD is then I didn't mind it all that much. The talk about autofocus issues are, in my opinion, highly over-exaggerated as I personally didn't see them with my unit.

(F2.8, 1/60, ISO 100, 64mm) For only $800, Tamron's 28-75mm f/2.8 Di III RXD is everything we could hope for in an E-mount lens that is within most hobbyists' budget. It takes incredible images, with the sharpness and color rendition that rivals its higher-end counterparts.

Don't underestimate the new Tamron 28-75mm F/2.8 E-Mount lens; It may come in a basic, unassuming package, so much so we thought we must have gotten a cheap third-party lens by mistake, but this is an incredible and versatile lens you'll start to appreciate as soon as you take your first photos with...

Unless you are pointing away from the sun or a strong light source, ghosting and flare are difficult to avoid with this glass, probably because it's using Tamron's older BBAR coating; These are easily reduced with a hood and filters, or removed in post, so we won't stress out about that...

Officially launched at the end of April, Tamron's 28-75mm f/2.8 Di III RXD (Model A036) lens is designed specifically for the Sony α7 range of full-frame mirrorless cameras and is the first of its type from a third-party manufacturer.

I received the lens in early June. I haven't had a chance to review it. I tested it for a week and it focused great besides in eye af. I took it on 2 portrait shoots and it worked well and it tracked the eye. But when I loaded them on my computer only 5 out of 50 pictures had the eye in tack focus.

For me, the approach works. Not once did I feel limited when shooting with the 28-75mm. It focuses up close for near macro shots, it's deadly sharp when stopped down a bit, and it's perfectly capable of capturing quality images and video at its widest setting.

Compact; Wide, fixed aperture; Crisp results; Supports all Sony focus features; Quiet autofocus system; Moisture-resistant design

Not the best performer at 28mm f/2.8; Omits optical stabilization; Firmware update not available in macOS High Sierra

The lens actually is better than expected. I've noticed that it's been my go to in every situation that suits me for the last couple of weeks now. If you haven't played around with it, you should. Sharp, fast focus.

One word: AMAZING considering the price and rendering performance. Caution: low light/underexposed focusing is not as good as on native Sony lenses.