Excerpt: 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.
Excerpt: 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. At $199, it’s certainly a lens that NEX owners should consider adding to their kit.
Excerpt: 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. Both lenses were announced in early 2012, with the 30mm lens making its roadways to dealers in late March. The lens is available for both m4/3 as well as Sony NEX mounts and costs $199.
Sigma AF 30mm f/2.8 EX DN (Sony E mount) - Review / Test Report
9 February 2013
Conclusion: The Sigma AF 30mm f/2.8 EX DN is a cute little fellow but not only that - it's good quality stuff, too. This is especially true for the center performance which is nothing short of breathtaking in the relevant aperture range. The image borders & corners aren't quite as hot but decent enough for sure. Distortions are basically absent and you don't really need to worry about vignetting that much either.
[REVIEW—SIGMA 30mm f2.8 EX DN lens for mirrorless cameras]
4 April 2012
Excerpt: This lens is designed for use on mirrorless system cameras and currently comes in mounts for Olympus/Panasonic micro four thirds cameras and for Sony NEX cameras. The film-equivalent angle of view on the Olympus/Panasonic is 60mm and on the Sony 45mm. Construction quality matches Sigma’s best lenses, which is very good indeed. The chunky little body is encased in the rubberised material that feels so good on all their best lenses.
Excerpt: In January 2012 the Sigma company presented two lenses designed for mirrorless cameras - the Sigma 19 mm f/2.8 EX DN and the Sigma 30 mm f/2.8 EX DN. If I have to be honest I admit I was very surprised by that launch. In the case of the Micro 4/3 system a small sensor allows you to construct equally small and fast lenses so quite significant Sigma devices with f/2.8 aperture didn’t fit there at all.
Cons: a bit too high astigmatism,, noticeable chromatic aberration,, work against bright light should have been better.
Summary: The Sigma 30 mm EX DN is a lens that is comfortable in the hand, finished solidly and which focuses quickly and quietly. For a micro-43 lens, the Sigma 30 mm EX DN is not very compact, but that is precisely an advantage for those who wish to focus manually. The resolution of this lens is very high, comparable to the resolution of the twice as expensive Panasonic 20 mm . This makes the Sigma 30 mm EX DN a welcome addition to the range of micro-43 lenses.
Pros: High resolution in the center, Solidly built and beautifully finished, Free pouch, Low priced
Cons: No built-in image stabilization, Reasonable performance in terms of distortion and chromatic aberration, Resolution in the corners is less than in the center