Hersmay M42-EOSR M42 to EOS RF Lens Mount Adapter M42 Lens for Canon EOS R RP R5 R5C R6 R6II R7 R8 R10 R50 R100 Full Frame Mirrorless Camera

It works!

Nice no nonsense adapter for M42 screw mount lenses to Canon. Great fit, nicely built.

This adapter is awful. It doesn't fit my vintage M42 lens because it only screws on a little less than halfway. Currently my lens is using a M42 to EOS adapter that fits just fine.

This item works great. I have however with some of my extension tubes issues. I am not certain if the extension tubes have the issue or this adapter. In any case I bought lots of extension tubes 30mm, 20mm, 10mm, 15mm, 12mm, 7mm, 3mm, ... and so on that work between themselves ok, However the 20mm and 30mm do not fit on the base, luckily the 10mm did perfectly fit so I could through a combination in different order create my 50mm I needed. This allows me to put then the extension on it so I can mount my microscope lens to the RF mount via the m42 rings. So overall I am very happy. Previously I had: RF-EOS <> EOS to M42 <> then all the different rings to get the right length, so I replaced with this the EOS adapter and the EOS to m42 adapter. I will now keep this together and have now a "dedicated" solution. Originally I 3-d print the adapter from RF to RMS, but as it turned out this did not work at all as my 3-d printer did not result in a mountable adapter to RF. Instead of reprinting one to EOS, I decided to just go with this ring and the extension tubes. I am very satisfied although I gave it not 5 stars.

No problem using this adapter. I mounted 50mm 1.4 canon FD to my R5 and everything works normal.

L'adattatore fa il suo dovere. E in metallo e da la sensazione di essere sufficientemente robusto. Viene fornita in dotazione la chiavetta per svitare le tre vitine di serraggio ed allineare la filettatura con l'obiettivo qualora fosse necessario. Ovviamente essendo privo di contatti elettrici la messa a fuoco e la regolazione del diaframma sono sempre manuali. Bisogna ricordarsi di abilitare la funzione di scatto senza obiettivo sulla macchina. Ho scattato solo un paio di foto di prova ma mi sembra un buon prodotto.

I’ve been using this adapter for about a week now and I’m really impressed. The materials aren’t the quality of the more expensive adapters from other brands (although I wouldn’t expect them to be at this price) but this doesn’t stop the unit from feeling secure and sturdy when on my camera. The included tool to change the orientation of the mount is a nice touch. Some screw mount lenses have slightly different threads so being able to change the position of the thread mount myself meant I can ensure each of my lenses mount exactly as they would on my old 35mm cameras. Very impressed and I highly recommend. Especially at that price, what’s to hate?

Great little product. Light. After changing the settings on my Canon R5 everything worked fine with my moms old Pentax Super Takumar 55 f2. Sharp! The adapter locks in place on both ends. Feels good. Only thing that was weird was that I ordered this and an FD adapter at the same time but the order was split - with the FD being a couple of weeks slower. Price paid: 17 euro Delivered: Inside foam plastic bag, inside small cardboard box, inside plastic bag.

Adapter für meine RP zu meinen alten Linsen von Leica R System. Nun der Adapter ist sehr sauber verarbeitet. Ich habe ihn gleich nach erhalt ausprobiert und mir gefällt er sehr gut, passt gut und Wackelt nicht.