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Pentax 645 Auto Extension Tube Set-A Set #1,#2,#3

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

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Pentax 645 Auto Extension Tube Set-A Set #1,#2,#3 Description


The Auto Extension Tube-A 645 is a set of close-up and copying accessories, which are designed to be coupled with the 645 camera body and any of the 645 lenses. Provision of lens information contacts allows using the A (Auto) setting of the A645 lens. Tubes No. 1, No. 2 and No. 3 are usable in any combination or individually, permitting open aperture metering. These tubes have a combined extension of 79.8mm.

KEH Specifications

  • Function:  Increases the distance between the camera and the lens allowing for closer focusing and higher magnification ratio
  • Camera Compatibility: Pentax 645
  • Lens Compatibility: Pentax 645 interchangeable lens
  • Length:  #1 - 14mm (0.55") #2 - 28mm (1.10")  #3 - 56mm (2.21")
  • Weight: #1 - 2.65oz   #2  - 3.17oz   #3 - 4.41oz


General information

Brand Name Pentax

Physical Characteristics

Lens Mount Pentax 645 A

Customer Reviews