Neewer Adjustable Screw Mount Adapter for M42 Lens to Sony NEX E-Mount Camera, E-Mount Camera Such as NEX-3 NEX-3C, Alpha A7/A7¢ò, A7R/A7R¢ò, A7S/A7S¢òand More

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.

Bei diesem Adaptern sowie auch bei anderen Modellen liest man gelegentlich, dass die Skala des Objektivs an falscher Position liegt. Dies lässt sich sehr leicht korrigieren. Dazu müssen die Madenschrauben gelöst und der M42-Gewindering an gewünschter Position wieder befestigt werden. Durch den Kragen hinter dem Gewinde wird der Blendenstift des Objektivs herein gedrückt. Somit lässt sich die Blende bei den Objektiven wie erwartet nutzen. Der Neewer Objektivadapter macht einen soliden Eindruck und funktioniert mit meiner Kamera einwandfrei. Lediglich das "Auslösen ohne Objektiv" muss im Kameramenü aktiviert werden, da das alte Objektiv bzw. der Adapter keine Elektronik besitzt.

Worked great for my old Meyer-Optik lens on my Sony A7R IV. I ordered two more to use on two other M42 lenses I just ordered on a popular online auction site:) Fun to play around with old lenses on new cameras. There are four small straight-slot set screws you can loosen with a jeweler screwdriver so that you can rotate your lens to keep the aperture markings on top. Another reviewer complained about the aperture markings ending up on bottom of lens - must not have noticed the set screws. I can't think of a reason to buy a more expensive adapter. Just buy one of these for each M42 lens you want to adapt to E-mount.