A Tominon copyscope lens (in cell) in very good condition. 280mm, f4.5. This will make a pretty good rich field scope or a finder. I bought this to make a big finder, but have gone a different direction, so I don't need this. Just want to offer it to someone else in case they can use it. If you've ever wanted to make a simple copier lens telescope, you can try this one out for a bargain. Just add a piece of PVC pipe and some sort of simple eyepiece holder/focusing mechanism. $15 shipped. Thanks!