I saw this interesting interchangeable lens outfit on Ebay: http://www.ebay.com/itm/RARE-PLAUBE...938?pt=US_Vintage_Cameras&hash=item3f15af3682 I found some information that the Anticomar was a tessar type lens. The Tele-Peconar (not pecomar) is a zoom type lens. But I'm not sure what the focal lengths of this one would be. The Heli-Orthar (not Orinar) is the wide angle. Not sure of it's construction type. I was wondering if anyone has ever used this type of camera? At the price I suppose it's more of a collector's item. Just wondering how lenses compared to the standard Zeiss Tessars of the time.