Lens Mount Adapter Comaptible for M42 Lens to Sony NEX Alpha E-Mount Camera Compatible with Sony Alpha NEX-7 NEX-6 NEX-5N NEX-5 NEX-C3 NEX-3 with Matting Varnish Design

M42 to Sony E-mount. It fits my setup. Helios 44-2 58mm lens on my Sony a6100 and my Sony FX30. Very Snug no problems. Good quality material. Functions perfect. Easy installation. Great value for the price. Able to keep infinity focus.

Perfect. I'm using an old Russian lens on my a7riii

A lot of reviews on here state that when they mount their lens that it is not lined up properly when they mount it to their camera. What they forget to address or probably didn't even notice is that there are four hex screws that you loosen to adjust that. The even include a hex key in the box. Super easy to do, you'll just gently loosen the hex keys with your lens mounted. Rotate it until it's aligned the way you want it, and then tighten them. This product is sturdy, functional, an excellent value, and amazing to work with.

Fits great. No wobble to the adapter or lens.

Not sure about the "anti-reflective coating" within the barrel, but it's just an adapter and it does exactly that. It feels very solid and well-built while also not being heavy either. The only negative thing I could think of is the size of the logo. It seems like the K&F logo seeks a lot more attention despite just being an adapter to a Helios lens. Not a big deal to me, so it still gets 5-stars.

Beautifully executed product. Although not the cheapest adapter, it is not expensive for for the quality of its engineering.

this lens adapter does essentially that, adapts your incompatible lenses. it doesnt do any more than that, it doesnt do any less. if you asked me "does this do a good job at letting me use other lenses?", my answer would simply be "yes." it wont speedboost your lenses, it has no electronics inside of it, it just fits your noncompatible lenses, and it looks & feels good doing it. the adapter feels sturdy & metal (unlike other cheap, plastic ones you can find at a similar price), and its colors perfectly match the sony line of cameras. it really looks uniform with your machine, instead of sticking out like a sore thumb. No Franken-cams with this adapter.

Flawless, solid and functional, what else could you ask for? I have this paired with a 50yr old 200mm prime lens and works every time. The pic was shot with a F4 200mm Jupiter lens attached via the K&F mount adapter

It works perfectly and as intended

Paired with my Helios 44M to mount on my Sony. Perfect

Très bonne qualité. Belle apparence. Se fixe bien au boîtier et l’objectif se monte sans difficulté sur l’adapteur. Livré avec un boîtier en plastique mais l’adapteur n’a pas de couvercles avant et arrière.

Fits my Sony A7RV like a glove, as well as an old Pentax Super Takumar 50mm 1.4 lens. Very happy with the results.

Con épations solide, le seul point négatif est la difficulté à trouver le bon endroit pour commencer le vissage sur l’’appareil.