The M42-EOS Lens Mount Stepping Ring allows M42 mount lenses to be used with Canon EOS cameras. Diaphragm control is set manually, and macro rings and other accessories can be utilized.
Compatible with M42 mount lenses from Zeiss, Pentax, Praktica, Mamiya, Zenit
Manual diaphragm control
Compatible with macro rings and other accessories
Material: Metal
Size: 65x65x8mm
Note: Automatic diaphragm and auto-focusing functions will not operate correctly
Requires stop-down mode for metering
Can be used in manual mode or aperture priority mode
