The Fotodiox Fusion Smart AF Adapter promises to fully support EF and EF-S lenses, but it only works well with select Canon lenses and third-party support is poor.

Adapts EF and EF-S lenses to Sony mirrorless cameras; Autofocus and aperture control; Removable tripod foot; Inexpensive.

Limited lens compatibility; Inconsistent performance.

The Sony A7 series is one of the most popular mirrorless systems on the market today, and it’s not just because of the excellent sensors and video capabilities. Since the first release in late 2013, one of the main attractions has been the possibility to adapt 35mm lenses from other mirrorless or...

fantastic solution if You have canon AF lenses and want to use them with Sony A7II and III. I happened to own/use Canon 5D mark IV with Sony A7II and III Full Frame bodies. As far as Canon glass I own 24-70mm F2.8 II L, 70-200mm f2.8 IS L, 50mm f1.8 STM, 85mm f1.8, 100mm f2.8 L macro and all of them...

The Sigma 24-70mm Art is a fabulous lens. It’s hugely impressive in terms of build quality, handling, and the performance of its autofocus and stabilization systems. Most importantly, it simply delivers spectacular image quality.

Sublime image quality, Excellent build quality, Great handling

Large 82mm filter thread, Typically heavy for an f/2.8 zoom, Not fully weather-sealed

The Sigma fares excellently well in the frame centre and on its edge but only at the shorter focal lengths, doing it at the expense of the edges of the frame at 70 mm. It deals well with chromatic aberrations but the spherical variety remains a problem.

Solid casing designed for high rigidity,, Excellent image quality in the frame centre,, Good image quality on the edge of the APS-C,, Lack of problems with longitudinal chromatic aberration,, Sensible coma correction,, Low vignetting on the APS-C/DX,, Silent, quick and accurate autofocus,, Efficient...

Resolution on the edge of the frame at the 70 mm focal length should have been better,, Noticeable problems with spherical aberration,, Weak performance against bright light,, A bit too high astigmatism level,, Significant vignetting on full frame,, Noticeable distortion of moustache style on the...

The Sigma 24-70mm F2.8 DG OS HSM Art lens offers a classic focal range and fast maximum aperture whilst delivering the goods in the image quality department. It's tack-sharp throughout most of the zoom range, particularly in the centre of the frame, with sharpness only falling off a little at f/2.8...

For many photographers, the most coveted walkabout focal length is 24-70mm, with most major manufacturers offering lenses at this range due to its extreme versatility. While own-brand lenses have often been the go-to for anybody looking for premium quality, Sigma has just released its own 24-70mm...

It’s the safest lens you can buy. With the sturdy build and compatibility, you can fit it on whatever model camera you have. Also, crisp picture quality, even at full zoom is a great plus. It delivers a decent bokeh, and it’s great for wide-angle shots. It’s the perfect all-rounder.

The build is sturdy, compact and it balances well, Quick and silent auto focus with an ultrasonic drive system, Excellent auto focus as well as stabilization with smooth Bokeh, Provides remarkable image quality even at the widest aperture, Exceptional build quality, handling, and performance even in...

Extra-large 82mm filter thread, Comparatively heavy for an f/2.8 zoom, Not compatible for extreme whether photography as it’s not weather-sealed

The Sigma Art range of lenses aims at the highest level of optical performance. Coupled with the extremely useful 24-70mm range, such a lens offers the potential of a huge step up from the average “kit lens” often supplied in a package with the camera.

The Sigma 24-70mm f/2.8 DG HSM ART OS promised many things ... and delivered only a few of them. Let's start with a positive aspect - throughout the zoom range it is darn sharp in the broader image center.