Description
Dulens EF mount for the APO Mini Prime 43mm
This replacement mount converts the Dulens APO Mini Prime 43mm from PL to Canon EF. It is the focal-length-specific version: select it for the 43mm, rather than choosing a mount kit simply because it belongs to the Mini Prime family.
Changing the mount and retaining back focus
Work on a clean surface, remove the PL mount using the correct tools and keep the original screws and shims with this lens. Shims set the optical distance to the camera sensor; losing them or changing their order can shift infinity focus. Fit the matching EF mount without trapping a shim, then check that the lens reaches infinity and that its focus marks agree with the image.
The mount changes the mechanical camera connection. Focus and aperture remain manual; it does not add autofocus or electronic iris control. A lens adapter on the camera is a different solution from replacing the rear mount on the lens.
Which lens does it fit?
Use this kit for the APO Mini Prime 43mm. For the other focal lengths, browse our APO Mini Prime lenses and matching EF mounts. This listing does not establish compatibility with Triassic or Cambrian lenses.
Tell us your camera, lens mount and intended setup. Email Gafpa Gear for help matching the parts.










