EP projection adaptors don't have a lens. I have an old adaptor with either
a Canon T ring or an M42 T ring that you can have for $15 posted if you
are interested, or of course without the T ring if you already have one.
raymo
Hi Raymo
I checked my cupboard full of bits and pieces and found a Bintel camera projection adapter and T ring ( never used it ) As well as the camera projection lens I mentioned previously
I know what it is now; its not a lens at all, just a method of attaching an eyepiece to the camera without using a traditional fixed or telescopic
EP projection adaptor. It is fine if you are happy to use just one EP, but it
makes far better financial sense to use a traditional adaptor if you want to use several of the EPs in your collection.
raymo