K&F Concept Lens Mount Adapter M42-NEX IV Manual Focus Compatible with M42 Lens and Sony E Mount Camera Body

Works great for my A7SIII. I got this to attach an old Helios 44 lens to, and it did the job flawlessly. No vignetting, and the build quality is very good. All of that at the low price point.

We'll designed adapter. Works well with my Sony alpha.

Helios 44 series can be finicky lenses to adapt based on when they were made. My lens is a Helios MC 44-3 from 1987. Cheap adapters do not function correctly with this lens. I bought this one, and didn't even need to make adjustments at all. Locks tight onto the lens, no play or wiggle, and allows me to adjust focus with no issues. Not sure if it actually adds any contrast with the interior coating, but it doesn't as I love the photos that it renders. You pay for what you get, don't buy cheap.

Needed an adapter for my Helios so it could be used with my Sony A7III. The adapter wasn't aligned out the factory, causing the markings to show up on the side rather than on the top where they should be, but it was easy enough to correct with an allen wrench. Wish they did include an allen wrench in the kit though, it's not an unusual problem to run in to, regardless of the adapter brand

The adapter is made with great build quality that matches my Sony A7 camera. I use the adapter for my East Germany lenses from Praktica/Pentacon. Highly recommend for anyone who wants to use vintage lenses with a Sony full frame mirror less cameras.

Does exactly what it is supposed to, and has really nice build quality.

I took a chance on this one. I needed an adapter that fit with the Pentax Super Micro Coated Takumar 50mm f1.4. This fits and allows the aperture ring to turn without interference as many of the adapters do. No lens modification needed. Well built. Nice design and bonus, the Sony orange ring at the base.

Me gusto mucho, funciona perfecto con mi lente helios 44m-4 y con mi montura adaptada para telescopios 😁

costa poco ed è ottimo per le lenti vintage

Bought this for the TtArtisans 75mm 1.5 lens and it works well. Occasionally I have to screw the lens back on after adjusting the aperture ring but this is the nature of the M42 mount. High quality mount surfaces that don’t damage the lens threads and it’s orange band matches more or less with Sony bayonet orange band, slight colour difference. Overall well designed and attractive lens adapter.

Passt ausgezeichnet, die Qualität lässt nichts zu wünschen übrig.

Quite the decent price and quite the solid build, has a minor amount of play with my Helios lens but seems minimal and allows me to use all of my M42 lenses without trouble. Well packaged, nice and shiny! P.s the colour match of the orange to the sony flange is also very close and matches well.

Se ve de calidad y cumple bien su función.