Product Description

Prime Standard Lens Ideal For Portrait, Still Life Or Low-light Photography Fast F/1.4 Aperture For Outstanding Depth Of Field Control Focal Length Equivalent To 84.5mm In 35mm Format Rounded Diaphragm Blades Create A More Circular Aperture For Smooth, Beautiful Bokeh At Large Aperture Settings Sdm Autofocus System For Accurate, Quiet Focusing High-performance Aero Bright Coating On Internal Lens Elements Offers High Refraction Index For Improved Light Transmission With Minimal Ghosting Or Flaring Quick-shift Focus System For Instant Switching From Auto To Manual Focus Weather- & Dust-resistant Construction For Safe & Reliable Operation In The Field Developed Specifically For Pentax Digital Slr Cameras

Product Details

• Brand: Pentax
• Model: 55mm
• Dimensions: 4.75" h x 4.25" w x 5.70" l, 4.41 pounds

Features

• Prime standard lens is ideal for portrait, still life, or low light photography.
• Fast f/1.4 aperture for outstanding depth of field control.
• Rounded diaphragm blades create a more circular aperture for smooth, beautiful bokeh at large aperture settings.
• PENTAX SDM autofocus system for accurate, quiet focusing.
• Weather and dust resistant construction for safe and reliable operation in the field.

Amazon.com Product Description
Boasting 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.

Specifications

• Focal 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