Pentax HD Pentax-D FA Macro 100mm f/2.8 ED AW

Features

>> K-Mount Lens/ Full-Frame Format

>> Aperture Range: f/2.8-f/32

>> Minimum Focus Distance: 5.1"

>> ED and Anomalous Dispersion Elements

>> High-Grade Multi-Layer HD Coating

>> Dust-Proof, Weather-Resistant AW Seals

>> Smooth & Quiet Quick-Shift AF System

>> Rounded Eight-Blade Diaphragm

>> Includes Lens Hood and Storage Pouch

HD Lens Coating

This lens features the PENTAX-developed HD coating, a high grade, multi-layer coating that reduces average reflectance in the visible ray spectrum to less than 50 percent when compared to conventional coatings, allowing the user to capture high-contrast images free of flare and ghosting.

DC Autofocus Motor

The in-lens, direct current (DC) Auto Focus motor offers smooth & quiet performance using the FREE (Fixed Rear Element Extension) focusing system. In addition, the Quick-Shift focus system allows instantly shifting from autofocus to manual focus after the subject has been captures by the AF system.

Dust-Proof, Weather-Resistant Construction and Durable Aluminum Barrel

With seven special seals to prevent intrusion of water, moisture, and dust, this is the first lens of the "Limited" series to feature the PENTAX-original weather-resistant construction. The durable aluminum alloy barrel and weather-sealing allow this to perform in almost any shooting conditions, including snow, mist, rain, or other harsh environments.

Life-Size Magnification

This 100mm, short-telephoto macro lens provides life-size magnification and a working distance of 5.1" from the subject to the front of lens or 12" from the subject to the image sensor plane.

Full-Frame or APS-C Compatible

When used on a film camera or a DSLR with a full-frame image sensor this 100mm lens has a 24.5° angle of view. When used on an ASP-C camera, it is the 35mm equivalent of a 135mm lens with and angle of view of 16°.

SP Super Protect Lens Coating

PENTAX SP (Super Protect) coating on the front lens element repels dust, water, and grease to keep the lens clean and images sharp.

Optical Design

One ED (Extra-low Dispersion) element and two Anomalous Dispersion glass elements deliver clear, high-resolution imagery with edge-to-edge sharpness to compensate for various aberrations and minimize purple fringing.

Rounded 8-Blade Diaphragm Blades

The rounded eight-blade diaphragm produces gorgeous bokeh effects at the apertures wider than f/5.6 while minimizing streaking effects from point light sources.