- ? Wide-Angle Prime with Distagon Optical Design - Mount-Crop: Canon EF-Mount Lens/Full-Frame Format - Type-Focal: 15mm, Angle of View 110° - Aperture: Max f/2.8, Min f/22 - Filter-Grams: 15 Elements in 12 Groups - ZEISS Lens Shade - 95 mm - 102 x 100 mm, 947 g