T/T2 for Canon EF Mount

It worked well to connect my Nikon D7500 to a Vivitar 400mm camera. It was inexpensive and gave me the opportunity to try out that lens.

Perfect fit!

I used this to attach a 3D printed adapter to connect my Nikon DSLR to the trinocular port of my stereo microscope. Worked well and for a very reasonable price

Excellent quality and good value.

This aluminum appears to be well made and solid. It fits securely into my Canon RF camera. And it threads fine into my T2-Mount lenses. However, as others have reported, the locking pin on the Canon camera does not engage with the adapter, which could create a hazard for accidentally dropping the lens if it turned and falls out of the camera. The locking pin on my camera works fine, including with a Canon EF to EOS adapter. It looks to be that the recess in the adapter for the locking pin is not quite large enough for the camera pin. So, I think I will try to slightly enlarge the hole. It think it is off by only a very small amount. It appears to be that the hole on the adapter is in the correct location and that this is only a size issue. Update: Today I was able to slightly modify the adapter so it works properly, It appears that the hole for the locking pin is slightly smaller than my Canon cameras. So, I used a 3/32" drill bit to enlarge the slot. It is a little hard to tell if the problem is just the widith of the slot or whether it is slightly out of position. In any event, I put the drill in my drill press to assure a vertical cut and enlarge the oval slot. I also slightly enlarged the width of the slot. My Canon RF lenses have a slight amount of play and that is what I ended up with. I think using a larger drill - (7/64" or 1/8") - would be too much and likely result in too much play. After doing this, the adapter locks in properly. Needless to say, this should not be necessary. Second Update: I sent an update to Lightdow about this problem and to my surprise, they answered. They asked for a picture and Amazon receipt, which I provided. After this, they offered a $5 refund (about half the price), which I accepted. I was surprised how quick and efficient they were. Because I was able to fix this, I felt this was a good result.

I had read that the Canon RF version had issues with locking pin alignment some time ago. Well, I just tried out the Adapter in our Canon EOS R8. The pin caught perfectly. Great fit. Looking at the connection face, the pin detent appears elongated. I believe this makes it fit different Canon RF camera bodies much easier without an issue.

Exactly what I needed, fits Sony a6300.

Did not fit out camera Nikon d3300

Pude montar una Sony A7iii a un telescopio Celestron 127eq directo al focuser sin necesidad de un adaptador T.

The T-mount arrived a week earlier than expected and is of very good quality and fits perfect on my Canon 2000D/T7 and mates perfect with my 650mm to 1300mm Ultimax lens. Thank you lightdow and Amazon great purchase great price!

Produit parfait pour raccorder une lentille 500 mm a n'importe quel boitier Canon EOS

The fit between the adapter and the sony camera is just right. Some adapters are way to tight and others are a sloppy fit. This one gets it right.