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Pentax 400mm F/5.6 SMC FA ED IF Lens For Pentax 645 System {77}

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* Item pictured for illustrative purposes only, actual item not pictured.

Pentax 400mm F/5.6 SMC FA ED IF Lens For Pentax 645 System {77} Description


If you've got a Pentax 645N, then you've already experienced the handling and performance that have made it one of the hottest medium format cameras in today's market. And, if you haven't as yet explored the telephoto potential of your system, then there may be no better time than now. The 400 f5.6 FA delivers all the optical quality you could ask for plus the convenience and accuracy of autofocus operation. To help keep the size and weight to a minimum Pentax designed it with an internal focusing system (IF) making your treks into the photographic wilderness that much easier.

KEH Specifications

  • Focal Length: 400mm
  • Aperture Maximum: f/5.6
  • Aperture Minimum: f/45
  • Camera Mount Type: Pentax 645 Bayonet
  • Minimum Focus Distance: 9.8 feet
  • Elements/Groups: 7/6
  • Angle of View: 10° (645)
  • Autofocus: Yes
  • Tripod Collar: Yes
  • Filter Thread: 77mm
  • Dimensions: 9.9 inches long
  • Weight: 44.5 oz (1260g)


Physical Characteristics

Lens Mount Pentax 645 FA

General information

Brand Name Pentax

Technical Information

Fixed Focal Length 400 mm
Autofocus Yes

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