This mount adapter is for Canon EOS cameras to attach T2/T mount lens.
Completely manual control, manual focus and manual exposure.
There is no electrical connection on the ring so diaphragm control of the lens is set manually.
Easy and smooth to install, remove and operate lens.
It can focus to infinity.
With a mini hex key to help tighten or loosen the screw.
Made of high-quality material, durable for long time use.