With its precision optics, compact size and wide 75-degree angle of view, this lens is an excellent choice for sharp, high-contrast shots whether you're working indoors with people in groups, in landscapes or urban scenes when you want a panoramic or inclusive shot with lots of detail. Mounted on the Sony DSLR-A100 camera, this lightweight wide-angle lens provides a near-standard 42mm focal length (35mm equivalent). With its precision optics, compact size and wide 75 angle of view, this lens is an excellent choice for sharp, high-contrast shots with lots of detail. Creates sharp, high-contrast wide-angle photos Useful for indoor photos, people in groups or landscapes and urban scenes, for panoramic or inclusive shots Focal length - 35mm equivalent, 28mm Minimum focus distance - 1 foot (30 centimeters) Maximum aperture - f2.8 Minimum aperture - f22 Maximum magnification - 0.13x Lens groups/elements - 5 elements (no aspheric) in 5 groups with 7 aperture blades Filter diameter - 49mm Distance encoder Dimensions - Approximately 2 9/16 x 1 11/16 inches (71 x 43 millimeters) Weight - 6 1/2 ounces (185 grams)