That's a great deal roy, while the 01f is pretty common (I got an almost new one for $38) I've never seen the 200f for sale by itself- I would love to see some comparison shots
I got a 140f for my 360b(newer version of 60b) like new for $82 and they changed the rear of the lens so it wouldn't fit
There was a piece that protruded from the rear that was about 3/16" too long. Sooo I thought long and hard about it - and trimmed it off with a very small pair of tin snips I had and put some flat black paint on it and it worked like a charm
I tested it against a kenko 1.5x and it looked sharper at the edges by a bit and much more solidly made, it pretty much has been staying on mine in my backpack-I put one in the gallery of an osprey the other day with the 140f but I can't figure how to link it yet and I gotta go! Have fun!!!