VILTROX Lens Mount Adapter EF-EOS M is designed to connect Canon EF/EF-S series lenses to Canon EOS M series mirrorless cameras, giving you more choices of choosing lenses. Before buying this adapter (EF-EOS M), please read the following description carefully to make sure that both the camera and the lens are compatible to the adapterMain Features - Auto-focus and built in anti-shaking function - Aperture exactly being aligned via the mount adapter - Zinc alloy core makes the adapter strong and durable - Gold-plated pins brings the great conductivity of signal transmitting - 1/4 Female thread screw for mounting onto the tripodTechnical SpecificationsModel: EF-EOS M Mount AdapterFocus mode: Auto focusFront Mount: Canon EF mountRear Mount: Canon EF-M mountTripod Socket: Cu1/4"× 1Max Diameter and Length: 66.6mm×26mmFront cap: Camera coverRear cap: Lens Dust capWeight: Approx. 119gCompatibility- 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- Canon EOS M Series Mirrorless Camera: EOS M / EOS M2 / EOS M3 / EOS M5 / EOS M6 / EOS M10 / EOS M 50 / EOS M100Package Contents- 1 x VILTROX EF-EOS M Mount Adapter- 1 x User Manual (English & Chinese)