[I sent this reply a few hours ago, and it did not appear in my incoming PDML posts, so I'm sending it again - I apologize if there ends up being two of these replies.]
> Small, Yes... > Are they screwmount on the back end? > What do you think of the 300/5.6 ? Hi, Bob. They're the T-mount lenses that are part of the two mirror lens versions of Pentax spotting scopes. (I've added a few more photos, below.) I really haven't used them (yet) as photographic lenses, but I will do so shortly and report back. (I have no idea yet how they will do photographically - for one thing, I doubt that they're SMC, so that (supposed) fact alone may limit their usefulness a bit. (???) For the 300/5.6 - http://www.cetussoft.com/pentax/mirrors/30056.jpg http://www.cetussoft.com/pentax/mirrors/300562.jpg http://www.cetussoft.com/pentax/mirrors/300563.jpg For the 500/8 - http://www.cetussoft.com/pentax/mirrors/5008.jpg http://www.cetussoft.com/pentax/mirrors/50082.jpg http://www.cetussoft.com/pentax/mirrors/50083.jpg For both lenses - http://www.cetussoft.com/pentax/mirrors/300&500.jpg http://www.cetussoft.com/pentax/mirrors/both1.jpg http://www.cetussoft.com/pentax/mirrors/both2.jpg http://www.cetussoft.com/pentax/mirrors/both3.jpg http://www.cetussoft.com/pentax/mirrors/both4.jpg http://www.cetussoft.com/pentax/mirrors/both5.jpg ;-) Fred
