Clearly this is a lens of contradictions: it has a poor manual-focusing facility but it has a brisk and reliable AF system that records bitingly sharp images. It is also very well priced, which is an added bonus.

Sometimes you face such a situation: a tested instrument has good or very good results in most of categories but the overall impression, a particular slip-up or too high price make me lose all the interest. The Sigma’s 30 mm f/2.8 EX DN case it is a bit reversed.

compact and quite solid casing,, excellent image quality in the frame centre,, decent image quality on the edge of the Micro 4/3 sensor,, low distortion,, well-corrected coma,, moderate vignetting,, silent, fast and accurate autofocus,, good price/quality ratio.

a bit too high astigmatism,, noticeable chromatic aberration,, work against bright light should have been better.

Just like its sister 19mm optic that we reviewed last week, the new Sigma 30mm f/2.8 EX DN is definitely worth considering by Micro Four Thirds and Sony E-Mount users alike, thanks largely to its aggressively low price-tag.

During testing this lens proved itself capable of producing excellent results, even at maximum aperture. The light weight, fast autofocus and excellent build should win this lens many fans, especially with the price being so competitive.

Clearly this is a lens of contradictions: it has a poor manual-focusing facility but it has a brisk and reliable AF system that records bitingly sharp images. It is also very well priced, which is an added bonus.

With the announcement of Sigma 30mm f/2.8 EX DN, along with its sister Sigma 19mm f/2.8 EX DN, Sigma Corporation has finally made its long anticipated entrance into the mirrorless lens market official.

Sigma 30mm F2.8 EX DN is a Fixed aperture Auto Focus (AF) Standard Prime lens with APS-C / DX max sensor coverage, and it is designed to be used with E Mount cameras. What type of photography is the Sigma 30mm F2.8 EX DN lens good for?

Autofocus, Light weight at only, 135g / 4.8 oz, No Weather Sealing, Hood is not supplied

Autofocus, Light weight at only, 135g / 4.8 oz, No Weather Sealing, Hood is not supplied

The Sigma 30mm f/2.8 EX DN is the closest thing to a “fast 50” that we can get right now for Sony’s NEX models in the native E-mount. I’ve been playing with it for a couple of days and, in short, I think it’s a nice complement to the 18-55mm kit lens.

Sigma 30mm Micro Four Thirds Lens This 30mm lens is currently available to fit both Micro Four Thirds and Sony NEX cameras and costs around £170. It sports a bright f/2.8 aperture and a newly developed linear focus motor.

You have to hand it to Sigma, they recognize the opportunity in creating lenses for multiple brands, and have found yet another niche to supply lens alternatives in the micro four-thirds and NEX camps.