Features: Applicable models: All C-mount lenses and all AI AIS- F-mount digital SLR cameras Features: Full manual control, manual focus-, manual exposure, aperture priority. C-EOS All C-Mount Cine Lenses to EOS EF Macro Adapters C-Mount Lenses to EOS Adapters C-EOS Cine Mount Lens to EOS EF EFS- Body Aluminum Metal Black Macro Adapter Ring Applicable models: All C-mount lenses and all EOS DSLRs/film SLRs Specifications: Item: AI 16mm C-mount/Cine Mount Lens to AI AIS- (F-mount) Macro Adapter Ring Material: Aluminum Alloy Colour: Black Quantity: 1PC Package Includes: 1 PC x Macro Adapter Ring note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!