Lens Converter M42
on Canon EOS

The lens mount adapter is made of aluminium with silver plated finish. Adapter allows M42 lenses (Zeiss, Pentax, Praktica, Mamiya and Zenit) to be used on Canon and works with lenses having both only automatic diaphragm (A) and select or A (automatic/Manual diaphragm). By using this adapter your M42 lenses can trigger the Focus Confirmation indicator. Focusing can be infinity.