Sigma 19mm F2.8 EX DN and 30mm F2.8 EX DN lenses for micro 4:3 and Sony NEX cameras

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Sigma unveiled two fast and light prime lenses designed for mirrorless cameras. They are starting the”DN” range among Sigma lenses, which will mean they are aimed to be mounted on hybrid calmeras. These lenses will be available in Micro 4:3 (Olympus Pen and Pnasonic Lumix G) and Sony E mount (for Sony NEX cameras). We are glad to see Sigma launching new interesting lenses for hybrid cams as they really do need that to build an interesting system offer. I reviewed the Samsung NX200 last month and it is a nice APS-C mirrorless camera, but the lens range is yet too narrow to let me recommend this camera.

Sigma 30mm F2.8 EX DN
This lens is an equivalent 60mm on a M4:3 camera and a 45mm on a Sony NEX camera. This EX (which means it is amoong the best lenses of Sigma’s offer) gets two molded aspherical lenses including one double apherical side  lens in order to reduce aberrations. To fight against flare, its also gets the Super Multi Layer coating. If it doesn’ receive the HSM autofiocus motorization, the 30mm EX DN is the first to use a new linear engine which, according to Sigma, is both silent and precise. That could be a major asset for video shooting. Its circular diaphragm is made of 7 aperture blades for smooth bokeh. Its minimal focusing distance is 1’ featuring a maximum magbnificatin ratio opf 1:8.1.
– Focal length : 30mm
– Maximum aperture : F/2.8
– Minimum aperture : F22
– Optical built : 7 elements in 5 groups
– Minimal focusing distance : 1‘ / 30cm
– Maximum magnifying ratio : 1:8.2
– Filter diameter : 46mm
– Weight : 135 gr
– Available mounts : Micro Four Third, Sony E-mount

Sigma 30mm F2.8 EX DN
Sigma 30mm F2.8 EX DN for mirrorless cameras

Sigma 19mm F2.8 EX DN

As the 30mm EX DN F2.8, this wide-angle prime lens received Super Multi Layer coating, the new linear AF drive and a circular aperture ring made of 7 circular aperture blades. Its optical formula is somewhat a little bit more complexe, because of its shorter focal length : it embeds no less than 3 aspherical lens to fight against both distorsion and chromatic aberration. Used on a Sony NEX camera, it will behave as a 28.5mm. It lacks its large angle of you on a M4:3 as it becomes a 38mm equivalent. Then, it will rather be used as a traditionnal 35mm lens. (I love the Panasonic 20mm f/1.7 pancake lens on the GX1. I am posting the review next week).

Focal length : 19mm
– Maximum aperture : F/2.8
– Minimum aperture : F22
– Optical built : 8 elements in 6 groups
– Minimal focusing distance : 20cm
– Maximum magnifying ratio : 1:7.4
– Filter diameter : 46mm
– Weight : 140 gr
– Available mounts : Micro Four Third, Sony E-mount

Sigma 19mm F2.8 EX DN
Sigma 19mm F2.8 EX DN for mirrorless cameras

Sigma does not have the prices of these lenses yet.


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