Korean lens manufacturer Samyang has announced two versions of a new 100mm macro lens. The 100mm F2.8 ED UMC Macro is designed for stills photographers, while the 100mm T3.1 VDSLR ED UMC Macro is aimed at those shooting video. The lenses are essentially the same internally, using 15 elements in 12 groups but the VDSLR version is fitted with an uncoupled aperture ring and gears around both aperture and focus controls. Read more
Articles: Digital Photography Review (dpreview.com)