Pentax smc FA 645 400mm f/5.6 ED IF Lens

BH #PE40056C • MFR #26555
Pentax smc FA 645 400mm f/5.6 ED IF Lens
Key Features
  • Pentax 645 Mount
  • 35mm Equivalent Focal Length: 315mm
  • Aperture Range: f/5.6-45
  • Extra-Low Dispersion (ED) Glass
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The smc FA 645 400mm f/5.6 ED IF Lens from Pentax is a medium format, manual and autofocusing telephoto lens with a 35mm-equivalent focal length of 315mm. Extra-low dispersion (ED) glass is used to eliminate chromatic aberration for improved sharpness and contrast. Multi-coatings offer protection and prevent reflections on the inside of the lens to minimize ghosting and flare. Also helping to prevent flare is the supplied large lens hood. Quick AF/MF switching is also possible, and an internal focusing system enables easy MF operation and improves focusing speed while minimizing lens extension, allowing for a closer minimum focus distance. Additionally, the lens features a rotating tripod collar with clip to enable speedy switching between vertical and horizontal orientations.
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Pentax FA 645 400mm f/5.6 ED IF Overview

The smc FA 645 400mm f/5.6 ED IF Lens from Pentax is a medium format, manual and autofocusing telephoto lens with a 35mm-equivalent focal length of 315mm. Extra-low dispersion (ED) glass is used to eliminate chromatic aberration for improved sharpness and contrast. Multi-coatings offer protection and prevent reflections on the inside of the lens to minimize ghosting and flare. Also helping to prevent flare is the supplied large lens hood. Quick AF/MF switching is also possible, and an internal focusing system enables easy MF operation and improves focusing speed while minimizing lens extension, allowing for a closer minimum focus distance. Additionally, the lens features a rotating tripod collar with clip to enable speedy switching between vertical and horizontal orientations.

Medium format, manual and autofocusing telephoto lens with a 35mm-equivalent focal length of 315mm
Extra-low dispersion (ED) glass is used to eliminate chromatic aberration for improved sharpness and contrast
Multi-coatings offer protection and prevent reflections on the inner side of the lens to minimize ghosting and flare. Also helping to prevent flare is the supplied large lens hood
Fast AF/MF switching is also possible, and an internal focusing system enables easy MF operation and improves focusing speed while minimizing lens extension, allowing for a closer minimum focus distance
Rotating tripod collar with clip to enable quick switching between vertical and horizontal orientations
Aperture can be stopped down from the maximum of f/5.6 to a minimum of f/45 via the aperture ring in manual mode. Alternatively, full automatic diaphragm control is available
UPC: 027075042544

Pentax FA 645 400mm f/5.6 ED IF Specs

Focal Length400mm
Maximum Aperturef/5.6
Minimum Aperturef/45
Lens MountPentax 645
Angle of View7.9°
Minimum Focus Distance9.84' / 3 m
Maximum Magnification0.14x
Macro Reproduction Ratio1:7.1
Optical Design7 Elements in 6 Groups
Diaphragm Blades8
Focus TypeAutofocus
Image StabilizationNo
Tripod CollarYes
Filter Size77 mm (Front)
Dimensions (ø x L)3.27 x 9.92" / 83 x 252 mm
Weight2.76 lb / 1.25 kg
Packaging Info
Package Weight4.85 lb
Box Dimensions (LxWxH)14.016 x 6.772 x 6.378"
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