Model: EF-EOS M Mount Adapter Focus mode: Auto focus Front Mount: Canon EF mount Rear Mount: Canon EF-M mount Tripod Socket: Cu1/4"Ã? 1 Max Diameter and Length: 66.6mmÃ?26mm Front cap: Camera cover Rear cap: Lens Dust cap Weight: Approx. 119g 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 Lenses: Canon EF Series Lenses (does not include EF-M lenses or CN-E lenses) : 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