SFTOO

• Code names SFTOO, 12035, 12034- metric version
• Production era - 1938-1984
• Type - Mini-telescope viewfinder for f = 20 cm 1:4 Telyt and f = 20 cm 1:4.5 Telyt. Fits in accessory shoe of camera or PLOOT and can be used on the extension tube TZFOO for use with Telyt 20 cm lenses without Visoflex
• Variants - Metric and feet versions; early version with "20cm" and later with "200mm" engravings.
• Reference - Pages 17 and 45 of Dennis Laney's Leica 1984 Accessory Guide courtesy of Mike Butkus.