Upgrade your photography game with the M42-EOS Lens Mount Stepping Ring. This black metal ring allows M42 mount lenses from renowned brands like Zeiss, Pentax, Praktica, Mamiya, and Zenit to be seamlessly used with Canon EOS cameras.

• Manual Diaphragm Control: With no ROM connection on the ring, you have full manual control over the lens's diaphragm, offering you the flexibility to adjust settings to your preference.
• Compatibility: You can easily pair the stepping ring with Macro rings and other accessories, expanding your creative possibilities.
• Sturdy Construction: Crafted from durable metal, this ring ensures a secure and reliable connection between your M42 mount lens and Canon EOS camera.
• Size: Compact and sleek, with dimensions of 65x65x8mm, making it convenient to carry in your camera bag.

*Please note: While the lens will fit physically, automatic diaphragm, auto-focusing, or any other functions will not operate correctly with this adapter. "Stop-down mode" will need to be used for metering, and manual mode or aperture priority mode can be utilized for shooting.