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RAYQUAL Pentax K-mount lens to Canon EF-S-mount body adapter

RAYQUAL Pentax K-mount lens to Canon EF-S-mount body adapter


Product Highlights 


  • Adapts Pentax K-mount Lens to a Canon EOS (EF-S)-mount camera body
  • Light-shading plate minimizes vignetting & reflections from electrical contacts
  • Extremely smooth & reliable locking / unlocking mechanism
  • Mounts without any play for stable camera & lens operation
  • Flange back accuracy ensures accurate focusing from minimum to infinity
  • Tested for optical axis accuracy for blurr free photos
  • Uniquely engineered & coated from inside for lowest internal reflections
  • Bayonet type mount
  • Hand Crafted in Japan
  • Exclusive of 18% GST
  • 18 months official India warranty


Until now, adapters that use PK lenses to EOS (EF-S) bodies could not be made from the dimensions of the flange back. There were a lot of inquiries to say, but in fact the production was postponed due to the problem of the lens aperture mechanism and the interference of the mirror box. 

However, this adapter can be used with no problems with digital bodies that adopt the EF-S mount such as EOS KissD system, EOS-20D to 60D, EOS7D. 

In addition, it has been found that other digital EOS and silver halide EOS can be used by modifying the aperture lever of the lens. The modified PK lens can be used normally even if it is used with the original Pentax body. 

※ However, it does not correspond to EOS-D30, D60, 10D.


When the Helicoid is near infinity, it may interfere with the mirror. In order to eliminate this interference, a modification can be made to process the back ball pressure ring.


Lens modification involves bending the aperture lever and cutting the bevel at the tip and the guard next to the aperture lever. If the bending angle of the lever is subtle and it bends too much, it will interfere with the mirror, and if it is not enough it will interfere with the mirror box.


[ About the setting of the camera body ]



  • Set "Release without lens" on the camera body to "ON" before using. 
  • (The shutter can not be released unless it is set to “ON”.


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