tinxi® Lens Adapter M42 to Canon EOS autofocus with AF confirmation chip for Canon EOS 1D 1Ds etc (Electronics)
Confirmation of the autofocus works perfectly, I had to grind a little outside diameter because my goal (Mamiya Sekor) has a housing side with coupling ring finger, I did not want to remove the finger on the lens, so I filed down to fit the ring. Ope