Quality product works fine with the R6 and the older eos connector you can get the R connector but I also have the older 5dmk 2 so went for this one.
Quick delivery from FLO thanks

This is a really high quality adapter from William Optics. I bought it to connect my Canon EOS DSLR to my RedCat 51. Excellent service, packaging and delivery from First Light Optics.

Everything fine. I want to remark the FLO customer service, top notch. I recommend it to anyone. These adapters from WO work wonderfully, have correct spacing and attach firmly. I had a small issue at the beginning with my Olympus em1 mark ii camera but now I think it could be my fault.

Provides an excellent fit between my DSLR and StellaMira Reducer/Flattener. My previous adapter bought for a Celestron reducer was a loose fit but the WO adapter has surpassed this and at least gives me the confidence that my astrophotography images will benefit from improved clarity when I eventually get to use it. Sent with other kit items which FLO were quick to despatch as always.

Good quality, perfect fit on Redcat 51 and my Nikon D5300 camera focuses perfectly. I highly recommend this item.

Needed some advice on exactly what part i needed so emailed FLO and they got back to me super quick with the advice i needed so ordered the part and again quick delivery .
Many thanks

This fits very well to my Canon EOS 70D. The confirmation 'click' is soft, but noticeable when locked onto the camera. No issues at all.

Works fine and fits to the camera perfectly. What else is there to say!

Very good quality T ring, absolutly secure, motion free fit on Canon camera. Excellant delivery speed by FLO. If only I'd correctly set my camera to Raw................

The WO Canon EOS DSLR-M48 adapter was needed to attach my DSLR onto a field flattener. It does this very securely, with no risk of camera flex. However, I found attaching the adapter to the camera to be a very fight fit, requiring a little more force than I would have liked. The adapter did not have any indexing marking to align with the camera mount but this can be remedied with a marker pen. The adapter does its job, but it was certainly a tight fit on my Canon EOS DSLR.