• 【Compatibility】EF-EOS M mount adapter ring allows Canon EF and EF-S mount series lenses to be mounted on Canon EOS-M mirrorless digital camera. 
• 【AF function & Aperture Control】This EF-EOS M lens converter has a built-in aperture motor and electronic contact, which can control the aperture of the lens by means of electronic contact. The aperture control function almost supports all Canon EOS M cameras, and you can also adjust the aperture directly from the camera side.
• 【EXIF signal transmitting】Use gold-plated needle PIN to transmit signal, greatly enhancing its transmission performance
• 【Built-in IS Stabilization】Built-in IS stability, making focus more accurate and clear and better helping you take pictures; please set your camera APS-C Size Capture to "off" if you get your lenses to function as full-frame

CM-EF-EOS M will definitely bring more professional shooting experience to you！

Compatible camera&lens

Compatible Cameras: Canon EOS M Series Mirrorless Camera EOS M / EOS M2 / EOS M3 / EOS M5 / EOS M6 / EOS M10 / EOS M50 / EOS M100

Compatible Lens：

Canon EF Fixing Zoom:

24 F1.4L, 24 F1.8, 35 F1.4, 35 F2， 40 F2.8， 50 F1.4， 50 F1.2， 50 F1.8， 85 F1.2, 50 F1.8, 100 F2, 100 F2.8

Canon EF-S:

17-55 F2.8，18-55， 18-135， 55-200

Tarmon:

SP 17-35, SP 17-50, SP 28-75, SP 200-500