The M42 to K-Mount Lens Adapter for Camera Bodyfrom M42 to K-Mount Lens Adapter for Camera Bodymakes it possible to explore new lens and camera body combinations. It is made of machined aluminum for a snug, light-sealed, and secure connection.

Electronic communications and automatic functions are not supported with this adapter, focus and exposure settings may be manually adjusted.

M42-Mount Lens to Pentax K Camera    Manual Operation    Precision Machined    Made of Hardened Aluminum and Copper    Anti-Reflective Matte Black Finish

Related Questions and Answers

Q: 1. Will this adapter work fine with an A7IV and an Industar 50-2?

A: This lens is available in M39 and M42 lens mounts; if it has an M42 mount, it can be mounted to a Sony camera using the Vello M42 Lens to Sony E-Mount Camera Lens Adapter.

Q: 2. will this adapter allow infinity focusing?

A: Yes, the Urth Lens Mount Adapter Compatible With M42 Lens To Pentax K Camera Body will maintain manual focus through the lens' full range from the M42 lens' minimum focus distance to infinity. Do note that as this is a manual lens adapter with no electronic contacs on the lens mount, most automatic functions – aperture, autofocus, AE metering and image stabilization – must be adjusted manually. Exposure settings need to be set manually, too.

Q: 3. Does this particular adapter have an optical element? If it does not, why is there a magnification factor. Is it in the description by an oversight?

A: The Vello M42 Lens to FUJIFILM X-Mount Camera Lens Adapter does not have any optical glass inside. The magnification factor is due to the Fujifilm X-Mount being APS-C. To retain the focal length that would be achieved on a full-frame sensor, you would need a 0.75X wide converter or a speed booster.

Q: 4. Will this work with a Helios 44-2 lens?

A: Yes, the Vello Lens Mount Adapter for M42-Mount Lens to Nikon Z-Mount Camera should work perfectly with your Helios 44-2. Most Helios lenses are M42 mount. Some of the extremely old (silver) Helios lenses were a M39 mount and require a M39 to M42 step up ring to work with adapter.

Q: 5. Will this work with MC Helios 44-3 58mm f/2 lens?

A: Yes Vello M42 Lens to Nikon F-Mount Camera Lens Adapter is compatible with MC Helios 44-3 58mm f/2 lens.

Q: 6. What is the outside diameter in mm?

A: The outer diameter of the Vello M42 Lens to Nikon F-Mount Camera Lens Adapter is 54.2mm.

Q: 7. Does it focus to infinity?

A: According to Urth, this M42 adapter to RF-mount supports infinity focus. https://bit.ly/2XfZSDZ

Q: 8. Does this work with the new Leica CL?

A: Yes works fine with the CL. Need to set your lens to fully manual aperture mode (auto close down of aperture doesn't work as there is no electronic connection between the lens and camera. I have used with an old M42 Pentacon 50mm f1.8 lens. The only thing I couldn't get to work was magnification of the image for focusing. But if focusing wide open you don't need this as the EVF is good enough. If this is important get a Leica M to TL adapter and then add a M42 to Leica M adapter. The camera recognises the Leica branded M adapter and enables magnification. Downside is you have to buy two adapters.

Q: 9. Will this adapter work for both type 1 and type 2 M42 mounts or is this not an issue with the Leica SL mount?

A: This Novoflex M42 Lens to Leica SL/T Camera Body Lens Adapter works with both type 1 and type 2 M42 mounts.

Q: 10. Will this work with a full-frame lens and sensor? (without having to use crop mode)

A: Yes, the Vello Lens Mount Adapter for M42-Mount Lens to Nikon Z-Mount Camera is compatible with full frame lens and sensor. You won't have to use crop mode.