smc PENTAX-FA645 45-85mm F4.5

This standard zoom lens smoothly transitions from wide angle to short telephoto focal lengths equivalent to 35.5mm to 67mm in a 35mm format. Through the zoom range, it maintains a constant f/4.5 maximum aperture and can stop at f/32. It uses a 3-group zoom system for providing high delineation performance that is stable over the entire zoom range. It offers a minimum shooting distance of only 0.5m. The AF/MF operation can be performed quickly by simply sliding the entire focus ring forward or backward, while the manual focus operation can easily be altered after AF to allow for fine focus adjustments. As well, an eight-blade diaphragm creates even out-of-focus areas in images.

smc PENTAX-FA645 45-85mm F4.5
smc PENTAX-FA645 45-85mm F4.5
Lens Mount PENTAX 645AF2 bayonet
Angle of View 76° - 44.5° - 645 Film
63° - 36° - 645Z, 645D
Focal Length 45-85mm (Equivalent to 35.5mm - 67mm in 35mm format)
Lens Construction(group/elements) 11 elements in 9 groups
Min. Aperture (f) F32
Min. Focusing Distance 0.5m
Max. Magnification 0.22X
Filter Size 77mm
Diameter & Length (mm) 85mm x 99.5mm
Weight (g) 870g
Number of Diaphragm Blades 8
Hood PH-RBD77
Model No. 26725

Page top