Ricoh Imaging | Pentax FA 645 35-55mm f/4.5 AL Lens
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The Pentax smc FA 645 33-55mm f/4.5 AL Lens is a wide-angle zoom lens designed for use with medium format Pentax 645 mount cameras. It features an aperture range of f/4.5-32 and has a 35mm equivalent focal length of 26-43.5mm, providing a very useful range of wide-angle lengths. This lens in particular utilizes two aspherical elements that greatly reduce distortion, field curvature, and coma aberrations common with wide angle lenses

 

Wide angle autofocus zoom. When used on the film 645D the angle of view corresponds to a 26-44mm lens in the 24x36 format. It is a good lens for sweeping landscape photos. It features SMC (super multi coating) to increase the amount of light transmitted by the lens, ghost-less coatings and it contains 2 aspherical lenses for sharp pictures across the scene.

The 33-55mm features a lens construction of 11 elements in 8 groups, including some high refraction low-dispersion glass. To maintain image quality, it uses a 3-group floating zoom to reduce field curvature throughout the range. Also, the 33-55mm has a minimum focus distance of 15.7".

For smooth out-of-focus areas, the lens has an eight blade aperture diaphragm. Additionally, it features an 82mm front filter thread.

35mm focal length equivalent of 26-43.5mm

Aperture range of f/4.5 to f/32

Angle of view of 80° to 53° which equates to 65° to 43° on Pentax 645 digital cameras

Lens construction of 11 elements in 8 groups

Low-dispersion glass elements help to minimize chromatic aberrations and maximize sharpness

Accepts 82mm threaded filters

Minimum focusing distance throughout the zoom range is 15.7"

Super Multi Coating increases light transmission as well as helps to eliminate ghosting and flaring

Works with both film and digital formats

Aperture ring and focusing distance scale

Eight diaphragm blades for smooth out-of-focus areas

 

Focal Length 33 - 55 mm
Aperture Maximum: f/4.5
Minimum: f/32
Camera Mount Pentax 645
Angle of View @ Infinity 80° - 53°
Minimum Focus Distance 15.75" (40 cm)
Diaphragm Blades 8
Elements/Groups 11/8
Magnification 0.21x
Distance Scale Yes
Autofocus Yes
Tripod Collar No
Filter Thread Front: 82 mm
Weight 1.29 lb (585 g)
Dimensions Approx. 3.46 x 4.09" (88 x 104 mm)

Whats in the box?

Pentax smc FA 645 33-55mm f/4.5 AL Lens

Front Lens Cap

Lens Hood

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