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🔗 Unlock timeless optics with modern precision!
The Fotodiox M42 to Micro Four Thirds lens mount adapter is a premium all-metal accessory designed to connect vintage M42 screw mount lenses to Olympus PEN and Panasonic Lumix mirrorless cameras. Engineered with high-tolerance precision, it guarantees infinity focus and manual aperture control, enabling photographers to blend classic glass with cutting-edge digital bodies. Its anodized aluminum construction ensures durability, making it a must-have for creative professionals seeking to elevate their lens arsenal.




| ASIN | B002RJKVY2 |
| Best Sellers Rank | #530 in Camera Lens Adapters & Converters |
| Brand | Fotodiox |
| Brand Name | Fotodiox |
| Color | Black |
| Customer Reviews | 4.2 out of 5 stars 148 Reviews |
| Finish Type | Anodized |
| Finish Types | Anodized |
| Global Trade Identification Number | 00812759014623 |
| Included Components | lens adapter |
| Item Dimensions | 1 x 1 x 1 inches |
| Item dimensions L x W x H | 1 x 1 x 1 inches |
| Manufacturer | Fotodiox Inc. |
| Manufacturer Part Number | M42-MFT |
| Manufacturer Warranty Description | 2 year |
| Material | Metal |
| Material Type | Metal |
| Model Number | 09M42Micro43 |
| Mounting Type | surface |
| UPC | 812759014623 |
S**K
Well made, works as intended.
I purchased this adapter so I could mount an m42 screw mount lens to my micro 4/3 camera. One thing was critical: The adapter needed to have a flange that would depress the aperture pin, or else I would not be able to manually change the aperture with the lens mounted to the camera. This adapter worked flawlessly. The lens mounted properly so all the information was visible from above, the connection between the lens and the mount - and the mount and the body - was perfectly snug but not overly so. The flange depressed the aperture pin without issue. The adapter is made of metal and feels well constructed. Recommended.
M**E
Works as expected; good build quality.
Unlike other reviewers, I have had no problems going to infinity focus on any of my three M42 lenses on my Panasonic GH2. There is no binding of the threads, and the inner rim successfully pushes in the aperture control buttons. The M42 threads are machined well with no burrs. Using with three 1970s M42 lenses: Soligor 135mm/f2.8, Mamiya/Sekor 28mm/f2.8, and Mamiya/Sekor 50mm/f2. A note on my experiences with infinity focus: I've used all three of my M42 lenses for astrophotography. I have no problem achieving infinity focus on any of my three lenses and can dial in stars to pinpoint accuracy.
J**T
Good value for rejuvenating m42; YMMV
This adapter works fairly well, though I only have one lens with which to assess it. I'm experiencing some soft-focus, some coma, and color-fringing. For me, stopping down the aperture alleviates these. Using this adapter, I've mated a 1964/65 Super Asahi 50mm 1.4 lens to a Panasonic GH4; the crop factor gives it a 100mm equivalent focal length for full frame. If I did not already own the lens, I would just grab the Olympus 45mm/1.8 which is sharp, light, and practical (at 90mm equiv.). Although, in the future I'd love to get a CZJ Sonnar 180/2.8! Pros: this adapter opens up a world of m42 glass; going manual on mirrorless cameras is EASY with features like live-previews of exposure, and focus-assists like peaking; it is built well and solid without adding an unreasonable amount of weight or bulk; because of the crop factor it doubles the effective focal length and uses the sharp center of the lens (especially useful on older lenses which struggle with corner sharpness); excellent for a video kit. Cons: While it has good build quality, I'm not a fan of that small screw on the MFT side (I have tilt the lens when initially mating it to the body in order to clear the head of that screw... might need to grab a micro philips-head and see if it tightens down; no electronics, no metering, etc. (nature of the beast); need a new body-side lens cap; as you go for wider angles, you'll have to get a native lens (like wider than standard), because there's no sense in cropping a superwide; it will exacerbate optical flaws (like comma or color-fringing) in old lenses. Other thoughts: I liquidated my Nikon kit earlier this year and I have jumped ship to mirrorless (mft). Admittedly, it wasn't too severe of a switch: a D3100 (which had served me well), the kit 18-55, an AF 70-210, and an AF-S 50 1.8 (an excellent lens, btw). I won't take up your time with my rationale for switching, but in retrospect it was a good decision. I purchased a Panasonic GH4 along with some batteries, a 64GB SDXC, an Olympus 25 1.8, and two adapters: (a) this m42-MFT, mounted to a Super Asahi 50mm (crops to 100mm on FF equivalent) 1.4 and (b) a Nikkor-MFT adapter, mounted to a Nikkor 105mm (now 210) f/2.5 with multi-coating. In other words, I've got fast primes for 50, 100, and 210. Now to save up for wide angle...
S**R
Adapter fits perfectly
Adapted Pentax thread mount macro lens to M43 Olympus camera body, and it works perfectly! Excellent quality & reliable seller.
M**T
Does its Job
Very high quality, sturdy and well built. I haven't had any problems with the lens unscrewing on its own. Not the best when using a Vivitar 70-210 as trying to switch into macro mode requires a bit of finesse, the lens wants to unscrew itself. Works wonderfully with my SMC Takumar 55mm f/1.8.
B**N
Be Careful
I originally rated this as a one star product, but I've changed my mind, and have now given it 3 starts. When I first tried mounting the adapter to my camera (BMPCC), it was incredibly difficult to twist on, and the same goes for mounting the lens to the adapter. The M42 side has three screws, those screws came loose, and the threaded mount came detached from the rest of the adapter. I found a hex wrench/Allen key that fits the tiny tiny screws, and I was able to tighten up the M42 side, and the next time I mounted the adapter to my camera (BMPCC), I had an easier time. However, I think I may have broken one of the screws trying to retighten the M42 mount side. This is certainly not a professional tool, but it's also very inexpensive. If you need something 100% reliable, then you might want to keep looking for another adapter, but if you don't mind tightening some screws, and a less than perfect fit on your BMPCC, then this adapter will fit the bill. It would be great if they made the screws a little larger, and less fragile, and if they included a hex wrench/allen key for tightening them. I bet an allen key for those screws costs 10 cents.
J**N
The threading is super messed up
"Works" but will destroy your camera's mount. The threading is super messed up, there's an incredible amount of resistance to mounting and turning and barely click in and when I tried to remove I had 100% of time of it being stuck on and having to force it off (while holding mount button). I remember three times in a row it got stuck for what felt like was a half hour of me struggling and trying so hard to remove it. This will break your mount, it did not break mine yet but I'm not using it again to find out. Buy the Fotasy one, I bought it right after and it works 1000x better than this. It actually mounts on the MFT mount for your camera like any other lens or adapter does.
I**N
Excellent fit & alignment
I got the filter to mate my old M42 lenses to my Olympus E-PL. Excellent fit & alignment on both the camera side and the lens side. My 55mm F1.8 SMC Takumar lens has the tab that allows for open aperture metering - no problems with that tab hitting. The other two lenses, a 28mm wide angle and a 75-150mm zoom lack the tab. No issues mating those lenses either.
C**9
Highly recommended adaptor for M42
My copy (and this review) was for the Fotodiox M42 adaptor for micro 4/3 system (Panasonic G7). Excellent convertor that is really solidly built, metal underneath well finished black matte surfaces. Feels great attached to my best Russian and Japanese lenses - becomes one with them. Perfect functionality. Comes nicely boxed and offers insane value. For AUS$12 delivered, you cannot ask for more from a basic adapter.
A**.
Cumple a la perfección
Excelente adaptador, cumple perfectamente con su función y hace que los lentes antiguos cobren vida otra vez. Lo uso con una olympus omd10 mk4
W**D
Für Experimentierfreudige: Jungbrunnen für die alten M42 Objektive
In meinem Bestand befinden sich immer noch die alten M42 Schraubojektive aus der Ära der Spiegelreflexkameras mit Kleinbildfilm. Die Objektive waren teuer und sind immer noch optisch hochwertig. Der Kauf einer Lumix G6 Systemkamera mit MFT motovierte mich, nach einer Adapter-Lösung zu suchen. Allerdings wurde ich von Fotofreunden gewarnt, die keine guten Erfahrungen mit Adaptern gemacht hatten. Ich wurde positiv überrascht. Der Adapterring passte sowohl am Kamera-Gehäuse, als auch am alten Objektiv genau. Auf der MFT-Seite ist ein Punkt angebracht, der das saubere Einsetzen in das Gehäuse erleichtert. Auf der Objektivseite ist ein Aluminium-Gewinde, das sich weich mit dem Objektiv verschrauben ließ. Die mir prophezeiten „spanabhebenden Geräusche“ traten nicht auf. Radial angebrachte Schrauben (Uhrmacherwerkzeug erforderlich) würden ein gezieltes Verdrehen/Fixieren von MFT und M42 Gewinde gegeneinander ermöglichen, so dass die Objektivbedienung (Entfernung/Blende) nach dem Einschrauben an der richtigen Stelle ist. Das war aber bei dem gelieferten Adapter nicht notwendig. Der Objektivwechsel mit Einschrauben dauert länger als das Einsetzen des MFTs. Also werde ich den Gedanken aufgreifen, mir für die alten Objektive je einen Adapter zu holen und ihn gleich am alten Objektiv belassen. Wünschenswert wäre die Beigabe einer MFT-Verschlusskappe gewesen. Die kann man sich aber nachkaufen. Die Verwendung der alten Objektive am modernen Gehäuse ist noch einmal eine Herausforderung. Hier sollte man geduldig die Bedienungsanleitung(en), Fachbücher und das Internet konsultieren und ein wenig probieren. Blende und Entfernung sind manuell am Objektiv einzustellen, die Kamera sorgt dann u.a. für Empfindlichkeit und Belichtungszeit, wobei man sich relativ schnell daran gewöhnt. Als sehr hilfreich haben sich erwiesen: der Fernauslöser und die Verwendung eines robusten Stativs (im Freien und unterwegs eher das Einbein-Stativ). Praxis: Der Aufnahmechip der Lumix G6 verhält sich im Vergleich zum Kleinbildfilm so, dass bei den Brennweiten der Faktor 2 angesetzt werden kann (bei anderen Apparaten kann das möglicherweise anders sein). Mein altes 50 mm Normalobjektiv entspricht auf der Lumix G6 einem modernen 100 mm Objektiv mittlerer Brennweite. Angenehmer Nebeneffekt: Man nutzt bei den alten Objektiven die Randbereiche der Optik nicht, so dass mit weniger Verzerrungen zu rechnen ist. Die Entfernungsbestimmung und das Scharfstellen muss man ausprobieren. Bei Kunstlicht und elektronischem Verschluss gab es bei mir Interferenzen auf dem Bild, die nach Wechsel vom elektronischen auf den mechanischen Verschluss verschwunden waren. Die alten Objektive sind im Vergleich zu den neuen recht schwer. Die Kamera wird kopflastig. Der Adapter ist mechanisch in Ordnung. Preis und Leistung stimmen, kaufen!
G**7
Ottimo!
Ben costruito, un pò pesante poichè è tutto di metallo, permette di utilizzare la regolazione del diaframma delle lenti M42 che si montano! Buonissimo l'uso con la mia G9 che grazie all'ottimo mirino elettronico permette una messa a fuoco precisa. Non vi sono contatti elettrici per cui l'obiettivo che si adatta con il Fotodiox deve essere regolato con tempi, diaframma e messa a fuoco manuali. Io mi diverto molto!
F**M
Excellent adaptateur
Je cherchais un adaptateur pour mon Olympus E-PL3 et d'anciens objectifs Takumar (50 et 100 mm) et j'avais déjà du en renvoyer (les adaptateurs n'avaient pas d'épaulement et ne pouvaient donc pas prendre en compte le détrompeur de l'objectif, ce qui empêchait tout réglage). Heureusement le Fotodiox fonctionne parfaitement ! Je n'ai pas besoin de forcer, et les mesures sont bien affichées en haut et non sur le côté. Rien à redire sur la qualité (qui semble moins "plastique" que celle des concurrents). Pour ne rien gâcher à mon plaisir : acheté sur Amazon français, la bague Fotodiox a été livrée des USA en moins d'une semaine (alors que le délai annoncé était d'un mois). Bref, après une trentaine de photos test, je suis pleinement satisfaite. PS : au bout de 6 mois d'utilisation, une déception cependant : distorsion du pas de vis par forte chaleur. On ne peut alors changer l'ouverture que sur une petite plage (à moins de tout dévisser).
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