Hi, Not sure if this is the right area for this question. A friend of mine has two Cambo Wides for sale, both in very nice condition and both have the Schneider Kreuznach Super Angulon lens. One of them is the Super Angulon XL. Cambo 750 Cambo 580 I searched the web and Ebay to find more information on the 'going rates' of these camera's, without any luck. Could someone help me out here, what would be a fair price for the two? Thanks.