Praktiflex lenses

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The Praktiflex mount was a screw thread lens mount, with a diameter of 40mm (M40), introduced 1938 with the Praktiflex, a 35mm SLR by KW.

From 1947 KW abandoned the 40mm mount and switched to the 42mm screw mount. Today most of the Praktiflex lenses are rare.

List of the known Praktiflex lenses:

Contents

Optische Werke Ludwig, Dresden

• Victar 5 cm f/2,9
• Anastigmat Victar 5 cm f/2,9
• (Anastigmat) Victar 5 cm f/3,5

Schneider Kreuznach

• Xenar 5 cm f/3,5
• Xenar 5 cm f/2.8
• Xenon 5 cm f/2
• Xenar 10,5 cm f/4,5
• Xenar 13,5 cm f/5,5
• Xenar 18 cm f/5,5

SOM Berthiot Paris

• Flor 40 mm f/3,5
• Flor 50 mm f/2
• Flor 40 mm f/2,8
• Flor 5,5 cm f/1,5
• Flor 10 cm f/3,5
• Tele 14,5 cm f/4,5
• Olor 3,8 cm f/5,7

Carl Zeiss Jena

• Tessar 5 cm f/3,5
• Tessar 5 cm f/2,8
• Tessar 4 cm f/4,5
• Triotar 8,5 cm f/4
• Triotar 13,5 cm f/4
• Biotar 5.8 cm f/2
• Tele-Tessar 18 cm f/6,3
• Tele-Tessar 25 cm f/6,3

Hugo Meyer, Görlitz

• Helioplan 40 mm f/4,5
• Primoplan 58 mm f/1,9
• Trioplan 50mm f/2,9
• Trioplan 10,5 cm f/2,
• Tele Megor 15 cm f/5,5
• Tele Megor 18 cm f/5,5
• Tele Megor 25 cm f/5,5

De Oude Delft

• Delfinon 50 mm f/2,8

Julius Laack Söhne, Rathenow

• Dialytar 5 cm f/3,5

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