With the focal length of 35mm and a a 12-inch closest focusing distance, the Pentax SMCP-FA 35mm lens captures distant objects with great clarity and details. The maximum aperture of f/3.5 in this Pentax camera lens gives you bright images even in low-lighting conditions. This Pentax f/3.5 for 645N lens also has a minimum aperture of f/32 which delivers stunning still images of objects that are in motion. With a lens construction of 10 elements in 7 groups, this Pentax f/3.5 for 645N lens allows comfortable handling and lets you capture sharp and clear images. The 82 mm filter size protects the Pentax SMCP-FA 35mm lens from scratch, dust and moisture. Shoot great pictures anytime and anywhere with this Pentax camera lens.