What a 190 4.5 Ektar looks like http://cgi.ebay.com/KODAK-7-1-2-IN-1...QQcmdZViewItem and well in your price range. Quite sharp at f11

Caltar Pro but this one is 150mm and the seller is ignorant that it is a Schneider Xenar, not a Rodenstock. Very common. The ignorance, not the lens. http://cgi.ebay.com/Rodenstock-Calum...QQcmdZViewItem

Pics of the sliding back I tried to describe. Over at Ape hug and I'm not sure if non members can see pix in the classified or not. http://www.apug.org/classifieds/show...p?product=4918