Customers most agreed on the following attributes:
i bought a screw mount adapter from another
company was a flat piece of metal and hard to
get on and off.
was quite suprised in quality may have to buy
the screw mount adapter so it will match
Works great
[...]I was able to take a 500mm that I still use on a pair of old Canon AE-1's and use it successfully with my Nikons. Even placed a 1.4 teleconverter in there and got good results at 700mm.
I purchased this t-mount to adapt a 500mm mirror lens that I use on my Canon A-1 35mm. I just got into digital SLR photography and was very pleased that a simple [$] adapter was all I needed to be able to use the lens on my new Nikon D40. Obviously no autofocus, and the exposure has to be set manually, but that is easier than you may think.