This FotodioX Pro Lens Mount Adapter allows an M42-mount lens with a fully depressible aperture pin to be used on a Canon EF or EF-S mount camera. It is designed to support focusing to infinity and utilizes a brass lens mounting ring to provide a durable, yet lightweight camera-to-lens connection.

A Generation v10 chip built into the adapter enables focus confirmation within a Canon EF or EF-S mount camera when used with a compatible M42-mount lens. This feature allows focus to be quickly and accurately achieved through a compatible camera's viewfinder or live view feature.

M42 Lens to EF/EF-S Body    For Lenses with Aperture Pin    Fully Depressible Aperture Pins Only    Enables In-Camera Focus Confirmation    Supports Focusing to Infinity    Brass Lens Mounting Ring

• Allows an M42-mount lens with a fully depressible aperture pin to be used on a Canon EF or EF-S mount camera
• Built-in Generation v10 chip enables in-camera focus confirmation
• Attached lens can focus to infinity
• Brass construction and mounting ring provide a lightweight camera-to-lens connection with enhanced durability

Related Questions and Answers

Q: 1. Is there a way to program a lens name/manufacturer/focal length into the chip?

A: The chip in the FotodioX Type 1 Lens Mount Adapter with Generation v10 Focus Confirmation Chip for M42-Mount Lens to Canon EF or EF-S Mount Camera is not programable.

Q: 2. Does it change the focal length?

A: The FotodioX Pro Lens Mount Adapter with Generation v10 Focus Confirmation Chip for Nikon F-Mount, G-Type Lens to Canon EF or EF-S Mount Camera does not change the focal length of the lens in any way.

Q: 3. this adapter will work on 5d m iv?

A: Yes, FotodioX Lens Mount Adapter with Generation v10 Focus Confirmation Chip for Nikon F-Mount Lens to Canon EF or EF-S Mount Camera will work on a Canon EOS 5D MIV.

Q: 4. Is there a way to set the lens name/manufacturer/focal length too? So it shows up in EXIF data later?

A: Unfortunately, the FotodioX Type 1 Lens Mount Adapter with Generation v10 Focus Confirmation Chip for M42-Mount Lens to Canon EF or EF-S Mount Camera does not support sending EXIF data to the camera.

Q: 5. When using this chipped adapter with a Blackmagic Pocket 6K, does the focal length of the Nikon lens get "taken in" via the chip to the BMPCC6K's footage metadata?

A: Even if one were to test it today, firmware updates to the camera could enable or disable that feature at any time. As with any third party accessory of this type, if you find such a feature to be both functional and essential to you then you'll want to avoid updating the firmware before you're able to ascertain from someone using the new firmware whether or not they consider its performance satisfactory. As of the time of this writing (June 2021), we do at least allow 30 days to return this product with all included packaging material if its performance is in any way unsatisfactory to you. Full returns policy details: https://bhpho.to/3iZ3Idn

Q: 6. Would this work with a canon 1ds mark II?

A: Yes, the FotodioX Pro Lens Mount Adapter listed above would be compatible for use with the Canon EOS 1DS Mark II DSLR camera. Do note that this is a manual adapter, so lens functions that rely on electronic communication with the camera body (autofocus, AE metering, image stabilization, etc.) will be disrupted. However, as the adapter does contain a Generation v10 Focus Confirmation Chip, you will be able to confirm focus with a green dot in the viewfinder and an (optional) audible beep.

Q: 7. Compatibility with EF Lenses/Full Frame Camera Bodies?

A: This adapter is only compatible with APS-C bodies.

Q: 8. Is this compatible with FL lenses (It's already known that an FL lens will fit on an FD mount body but maybe there's some peculiarity)?

A: Yes, the FotodioX Pro Lens Mount Adapter with Generation v10 Focus Confirmation Chip is designed and made for Canon FD Lens to EF/EF-S Body types.

Q: 9. will this adapter work with Minolta maxxum 700si a mount lenses?

A: Yes. The FotodioX Pro Lens Mount Adapter with Generation v10 Focus Confirmation Chip for Sony A-Mount Lens to Canon EF or EF-S Mount Camera, B&H # FOSNYAEPFC10, will allow you to use a Minolta MAXXUM lens or a Sony A-mount lens on a Canon camera that uses the EF or EF-S lens mount.

Q: 10. Does the 1.4 lens means that the converter crops a lens to 1.4? So a 28mm becomes a 40mm approximately? Or is the intenral 1.4 lens just for focusing?

A: Yes, the 1.4x is a crop factor.