Features: - EF-M adapter enables use of Canon EF and EF-M lenses on Canon EOS M mirrorless cameras, expanding lens compatibility. - Maintains autofocus (AF) functionality. - Precise aperture control via the mount adapter. - Built-in image stabilization support. - Durable construction with a zinc alloy core. - Gold-plated electrical contacts for reliable signal transmission. - 1/4"-20 female tripod thread for secure mounting. Note: Autofocus performance may be slower with prime lenses; manual focus is recommended in such cases. Specifications: - Compatible lenses: Canon EF series lenses - Compatible cameras: Canon EOS M mirrorless cameras - Front mount: Canon EF lens mount - Rear mount: Canon EOS M camera mount - Tripod thread: 1/4"-20 - Dimensions (adapter): 7.2 × 8.4 cm (2.8 × 3.3 in) - Package dimensions: 12 × 10 × 6.5 cm (4.7 × 3.9 × 2.6 in) - Package weight: 300 g (10.6 oz) Package includes: - 1 × Lens mount adapter - 1 × User manual