Pentax SMC D-FA 645 55mm F2.8 AL (IF) SDM AW

Pentax SMC D-FA 645 55mm F2.8 AL (IF) SDM AW

RM 4,199.00

The Pentax-D FA 645 55mm f/2.8 AL [IF] SDM AW Lens is the first model of the Pentax-D FA 645 lens series created for the Pentax 645D digital medium-format camera. With a focal length thats equivalent to a 43.5mm standard lens (in 35mm), it features optics optimized for digital photography to assure exceptional performance, and also provides an image circle covering the image area of existing 645-format film SLR cameras. It has dependable, dust-proof, weather-resistant construction for active outdoor photography.

This lens features a Supersonic Direct-drive Motor (SDM) autofocus drive and Quick-Shift for instant autofocus/manual focus switching, Aero Bright coating to help prevent flare and ghost images, and its Pentaxs first 645 system lens to incorporate a rounded diaphragm for improved bokeh (the aesthetic quality of the blur in the out-of-focus areas of an image).

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Description

Description

This lens was introduced in 2010 with the PENTAX 645D camera and incorporates a high-performance, hybrid aspherical optical element in its optics. On the 645D its field of view is that of a standard lens; on a 645 film camera it will be a wide angle lens. According to PENTAX this lens offers exceptional image-resolving power with outstanding brightness levels even at the edges, while compensating various aberrations to a minimum. All lens characteristics are optimized for digital photography: for instance, flare and ghost images are minimized by applying exclusive lens coatings to optical elements and employing anti-reflection materials for the interior of the lens barrel. As the result, this lens can bring out the full potential of the PENTAX 645D medium-format digital SLR camera.

The lens covers the full 645 format and can thus be used on 645 film cameras as well as on 645 digital cameras.

The lens has a built-in motor (SDM) for the autofocus function. On a 645 film camera the lens can be used in manual focus mode only, and only in P and Tv exposure modes due to the lack of an aperture ring.

Specification

Specification

 

Focal Length 55 mm
Aperture Maximum: f/2.8
Minimum: f/22
Camera Mount Pentax 645
Angle of View @ Infinity 65°
Minimum Focus Distance 1.64′ (49.99 cm)
Diaphragm Blades 9
Elements/Groups 9/7
Magnification 0.17x
DOF Scale Yes
Distance Scale Yes
PC Outlet No
Autofocus Yes
Tripod Collar No
Filter Thread Front: 67 mm
Weight 14.67 oz (416 g)
Dimensions Approx. 2.69 x 3.20″ (68.2 x 81.3 mm)
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