Kiwifotos aluminium lens mount adapter: Allows M42 Lenses (Pentax, Praktica, Mamiya, Zeiss and Zenit) to be used on Canon EOS 7D, 10D 20D, 30D, 40D,

Needed a slim line version of the"T" ring for my Canon350D EOS in order to directly connect the camera to my Reflector Telescope Eyepiece fitting. Previous attempts with the "thicker/standard" "T" Ring gave poor results. Now - no problems! A First...

I have no problems with this at all. It does what is says and I've not had one problem with it. I use it on my canon EOS 550D to adapt some old M42 lens to it..and they work fine, although be aware you can have infinite focus probs on some lenses.