- Prime Macro Limited lens with Super Protect Coating - Mount-Crop: Pentax K-Mount Lens/APS-C Format - Type-Focal: 35mm, Angle of View 44° - Aperture: Max f/2.8, Min f/22 - Filter-Grams: 9 Elements in 8 Groups - Built-in, slide out - 49mm - 63.5 x 45.72 mm, 213 g