Pentax SMC FA 645 400mm f5.6 ED IF

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.

Pentax SMC FA 645 400mm f5.6 ED IF

Pentax SMC FA 645 400mm f5.6 ED IF

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  • Pentax 645 Mount

  • 35mm Equivalent Focal Length: 315mm

  • Aperture Range: f/5.6-45

  • Extra-Low Dispersion (ED) Glass

  • Coatings Protect Lens/Prevent Reflection

  • Quick AF/MF Switching

  • Internal Focusing

  • Rotating Tripod Collar


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
Brand
Pentax
Focal Length
400 mm
Aperture
Maximum: f/5.6
Camera Mount Type
Pentax 645
Angle of View
7.9° (Infinity)
Minimum Focus Distance
3.0 m
Diaphragm Blades
8
Elements/Groups
7/6
Magnification
0.14x
Maximum Reproduction Ratio
1:7.1
Autofocus
Yes
Tripod Collar
Yes
Filter Thread
77 mm
Weight
1.25
Dimensions
Approx. 83 x 252 mm