Well, yes, but I'm not here that often... ;-)
It is a great lens and a wonderful, unexpected find and so far I'm very happy with this lens..
Now I just need better weather!!!
The album I will be putting more into is here:
GOI MC Telegoir f2.8 200mm | Flickr
Unfortunately there are only four (4) such GOI prototype lenses currentgly known to exist,
but my friend's lens is 10 numbers from mine, so there were a few more made...
This lens was the prototype of the later made OBERON 2.8/200mm, which uses the same
optic design but unfortunately a very badly made housing, plastics and wobbly focusing, quite a
nightmare lens from what I heard. Also optically far from that prototype. A friend has one and
he just calls it "crap".