Zeiss Ikon: Ikonta 521/16 (Ikonta B)

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The 521/16 is a folding camera in the Ikonta line, produced by the German company Zeiss Ikon. The production period was 1938 to 1953 and the format is 12 frames size 6 x 6 cm on 120 type rollfilm. Known Lens/Shutter combinations (prewar): Novar 4.5/7.5 cm lens in a Klio shutter, Novar 3.5/7.5 cm lens in a Compur shutter, and Tessar 3.5/7.5 cm lens in a Compur-Rapid shutter. Known Lens/Shutter combinations (postwar): Novar 4.5/75 mm lens in a Prontor-S shutter, Novar 3.5/75 mm in a Prontor-S shutter, Schneider Xenar 3.5/75 mm lens in a Compur-Rapid shutter, Carl Zeiss Jena Tessar 3.5/7.5 cm lens in a Compur-Rapid shutter, and Zeiss-Opton Tessar 3.5/75 mm lens in a Compur-Rapid shutter. The filter sizes are 35.5 mm screw-on and a 32 mm slip-in (should have 3 slots to accommodate for lens ring set-screws). The camera is metal with black leatherette covering and chrome ornaments. Dimensions are W135xD45xH78mm (folded) and weighs 540 grams.