Sigma’s ART lens category includes the Sigma 30mm f/2.8 DN and 19mm f/2.8 DN lenses designed for mirrorless lens cameras. Priced at $199, both lenses incorporate telecentric optical designs and a linear auto focusing motor for accurate and quiet focusing for video. They have metal exteriors and a simple focus ring with varying textures to distinguish each part of the lens.
The Sigma 19mm f/2.8 DN is a relatively wide-angle lens with an angle-of-view equivalent to a 38mm lens. Its minimum focusing distance is 7.9-inches with a maximum magnification is 1:7.4. Sigma’s 30mm f/2.8 DN has an angle-of-view equivalent to 60mm and is useful for portraiture, documentary, travel and everyday shooting. It features a double-sided aspherical lens with a minimum focusing distance of 11.8-inches and maximum magnification is 1:8.1. Both lenses come with lens hoods and a rugged, well-made case.
Last year, I took both lenses to Key West, Florida to see how they handled the rigors of travel photography but ended up shooting mostly with the 19mm f/2.8 DN. It proved to be an able traveling companion; not so much for its lens hood, which kept jumping off. Not having a hood only created flare in one or two of the 400 shots I made with the lens. Otherwise, the 19mm f/2.8 DN did a great job producing sharp images and I never wondered if it would have been better off with a zoom. It was great shooting under low light conditions in the Audubon House where I made the above image with a Panasonic Lumix G2.