Description
- Ideal For Portrait, Still Life Or Low-light Photography
- Focal Length: 84.5mm In 35mm Format
- Rounded Diaphragm Blades Create A More Circular Aperture For Smooth, Beautiful Bokeh At Large Aperture Settings
Amazon.com\n\nBoasting such features as super-low-dispersion optical elements, extra-low-dispersion (ED) optical elements, and Pentax original lens coatings, the Pentax DA* 55mm f/1.4 lens delivers crisp high-contrast images even at the edges. The lens is outfitted with a water- and dust-resistant seal for reliable operation in inclement conditions, along with a Pentax Quick-Shift Focus system that allows you to instantly switch between auto and manual focus. The objective lens surface, meanwhile, is treated with Pentax original (Super Protect) SP coating, a special fluorine compound that\'s applied through a vapor-deposition process to create a surface that effectively repels dust, water, and grease. The combination of special lens coatings, ideal curvature, and superior positioning of optical elements optimizes a host of digital imaging characteristics while effectively minimizing flare and ghosting. Other features include an Aero Bright coating for maximum light transmission, rounded diaphragm blades that create a more circular aperture, a fast f/1.4 aperture for outstanding depth-of-field control, and a 1.48-foot minimum focusing distance. An ideal lens for portraits, still life, or low-light photography, this Pentax 55mm lens carries a one-year warranty.\nSpecifications\nFocal length: 55mm Maximum aperture: f/1.4 Minimum aperture: f/22 Lens construction: 9 elements in 8 groups Angle of view: 28.6 degrees (with Pentax DSLR) Number of diaphragm blades: 9 (rounded) Minimum focusing distance: 1.48 feet Maximum magnification: 0.173x Filter diameter: 58mm Diaphragm control: Fully automatic Hood: PH-RBH Mount: Pentax Objective cap: O-LC58 Case: S90-100 Dimensions: 2.8 inches in diameter and 2.6 inches long Weight: 13.2 ounces Warranty: 1 year\n\nProduct Description\n\nWith extra low dispersion glass and original lens coatings, this lens is superior in contrast, clarity and edge-to-edge sharpness.