PENTAX HD DA 645 28-45mm f4.5 ED AW SR




The HD PENTAX-DA645 28-45mm f/4.5 ED AW SR is optimized to provide premium performance with the PENTAX 645 medium-format digital cameras. While this ultra-wide angle zoom lens captures expansive views for landscape photography, it’s also the perfect lens for architectural photography requiring a wide-angle view with minimal distortion.

The lens offers a zoom ratio of approx. 1.6X to cover ultra-wide-angle to wide-angle ranges; (equivalent focal lengths of 22mm to 35.5mm in the 35mm format), when mounted on a PENTAX 645Z or 645D camera body. Producing visual effects (i.e., exaggerated perspective and expanded depth-of-field), this lens can be used for a wide variety of scenes and subjects, such as sweeping landscapes, architecture and cramped rooms, adding more versatility to advanced medium-format digital SLR photography.

Designed as the HD PENTAX DA-series model in the PENTAX 645 lens series, the image circle of this lens is optimized for the image sensor of the PENTAX 645Z camera body. Optics feature 17 elements in 12 groups, including two high-performance aspherical elements and two ED (Extra-low Dispersion) elements, to enhance image resolution and brightness at edges, while minimizing various aberrations. Coupled with innovative lens coatings and an anti-reflective coating (applied to the interior of the lens barrel), this lens is designed to bring out the best performance of PENTAX medium-format digital SLR cameras.

This lens is treated with the high-grade, multi-layer HD Coating* to optimize light transmission and minimize reflections. HD coating delivers sharp, clear images free of flare and ghost images, even under demanding lighting conditions such as backlight. By coupling this coating with the PENTAX-exclusive, high-grade Aero Bright Coating,** this lens is designed to provide exceptionally high light transmission and super-low refraction.

PENTAX-innovated SR (Shake Reduction) mechanism is incorporated within the lens barrel. It effectively compensates for camera shake up to approx. 3.5 (shutter) stops. So you get sharp, blur-free images even under conditions prone to camera shake, such as when hand-holding the camera in poorly lit locations without flash, photographing sunsets, or using a long lens.

As the newest member of the AW (All Weather) series, this lens features dependable dustproof, weather-resistant construction with 11 special seals to effectively prevent the penetration of dust and moisture. When used on the PENTAX 645D or 645Z camera body, you are assured of a durable, reliable digital imaging system that performs superbly in demanding shooting settings: rain, mist, or locations prone to water splashes or spray.

SP (Super Protect) Coating applied to the front surface of the lens to effectively repel water and grease.