ZEISS ROSS ANASTIGMAT SERIE III F7.2 250MM PRE PROTAR EARLY À PARIS

An antique english lens engraved: ROSS London N°467  Patent Zeiss Anastigmat 1:7,2  F=250mm A well used early large format made by Ross London under Zeiss license. The 3 digits serial number means it's one of the first produced Brass barrel wears a lot of rust spots and marks due to age. Iris is graduated from 7 to 71 and turns smoothly. Glasses have slight marks, and there is a cemented separation on the very edge of rear group. Mounting flange is missing focal length: 250mm maximum aperture: f7.2 coverage: 6x8in total length: 47mm diameter of glasses: 42mm diameter at mounting thread: 58mm A rare and antique early Zeiss/Ross for collectors and large format photographers check out my other antique lenses for sale