Lens Mount Adapter for M42 Lens to Sony NEX E-Mount Camera,fits Sony A7 A7S/A7SII A7R/A7RII A7II A3000 A6000 A6300 NEX-3 NEX-3C NEX-5 NEX-5C NEX-5N NEX-5R NEX-6 NEX-7 NEX-VG10/20

This adapter has a sturdy, durable feeling that is unexpected at such a cheap price point. Of course, the M42 mount isn’t particularly exotic, and there’s no electronic connections, so my lens fits well and the adapter mounts on the body well. Nothing to complain about here, an excellent product for us vintage lens-lovers from Neewer.

This is a pretty standard M42 to Sony E Mount lens adaptor, meaning you can use the whole range of classic M42 lenses on a Sony E mount camera, a pretty popular example being the Helios 44-2 and its derivatives. Lens adaptor works fine. The threading doesn't seem to be the best machined, but then this is a cheap adaptor. Cheap enough that I leave these permanently attached to each of my M42 lenses. Someone else had commented that when attaching a lens they had noticed that the F Stop and focus range indicators were located in the wrong position, and were therefore unreadable, (making the adaptor useless) For those that don't know, all these adaptors have grub screws that allow the whole threaded section to rotate. So on first use, attach the adaptor to the camera then attach lens tightly, loosen the grub screws, rotate the assembly until the F-stop etc is where you'd like them to be, and then re-tighten the grub screws. Takes 1 minute on first use only.

Got this to use my grandfathers lenses (m42 thread) on my Sony M6000 (APS-C) - The convertor works without a hitch, does exactly what it says. Also, you can rotate the inner thread so that lens information is presented at the correct orientation. Picture quality with a Helios-44 is far sharper than using the kit lens, and in general amazing quality.

Purchased to adapt a manual Pentax Chinon 55mm F1.7 M42 lens onto a Sony A7s iii E-Mount body. It works perfectly, but as I said you can buy similar for much cheaper on Amazon as they all do the exact same thing. Buy this, or buy a cheaper one.....or buy a more expensive one. They all do the same thing for manual M42 lenses.

Fast shipment and delivery. It fits nicely and tight to NEX5N E mount without any unwanted movement. M42 screw side is also tight. There are 3 grub screws that holds the silver M42 ring to the adapter, you can use these screws to rotate the M42 ring so your lens show its focus label to the top.

I use this to mount a helios 44-2 to an a6000. Fit is excellent. The lens wasn't mounted the correct way up initially but there's some adjustable screws that allows you to adjust the mount positing of the vintage lens.

My vintage russian glass dosen't fit the way it's meant to, like on my 300mm, the tripod mount should be facing down, but it faces out to the side instead, this is down to how the threading is aligned, it looks like the thread can be rotated if you unscrew the little screws holding the thread in. Not sure if this happens on all lenses, or if this is the case for just my copy or not. For most this is a minor inconvenience, since with lets say a 50mm portrait lens (helios 44-2) the orientation will not matter.

This is a well engineered item - it takes a M42 threaded lens and fits nicely on the E-mount bayonet. The register distance is correct so accurate focus is maintained. And that's it.

Utilizzo questo adattatore con vecchie lenti vintage come il Jupiter 85 ed Helios 58. L’adattatore è interamente in metallo, ben realizzato, privo di gioco e conferisce un senso di solidità.

Good quality

I bought this K&F Concept adapter to use my vintage Olympus Zuiko OM lenses on my Fujifilm X-mount camera, and I’m genuinely impressed with the quality and performance. The build is solid and precise, with a snug fit on both the lens and the camera body—no wobble, no looseness. It mounts smoothly and locks in place securely, which gives me great confidence when handling more delicate vintage glass. In terms of functionality, it works perfectly in manual mode. Manual focus is smooth and accurate, and aperture control on the lens feels just as it should. It's incredibly satisfying to breathe new life into classic lenses and use them on a modern digital system. If you're a Fuji shooter looking to explore or revisit old Olympus OM lenses, this adapter is an excellent investment. Highly recommended!

El adaptador de M42 funciono bien en la camara Sony 6400 alpha. Pude tomar fotos sin problema.

There is a stupid ledge e few mm down the barrel that interfers with the pins on the backend of some lenses. My Pentax takumars for example. Extremly anoying as it is fine otherwise, and much lighter than the in all other aspects brilliant K&F adapter wich is much heavier.