VIOOH

• Production era - 1939-1963
• Type - Universal viewfinder for the focal lengths 3.5-13.5 cm with parallax adjusting lever.
• Variants - Later models have nose thread for TUVOO addaptor for 28 mm lens (VIOAD in NY catalog); round, straight and lyer-shaped body versions; Cine version for 1.5-15 cm lenses; Gray wartime version engraved W.H. used back-to-front with a special eye-piece.
• IMFIN - IMARECT 1940 NY version with beaded side casing and large back plate. Also IMRAECT
• Reference - Page 12-13 of Dennis Laney's Leica 1984 Accessory Guide courtesy of Mike Butkus
• Forum discussion
  • JCB's a little...VIOOH with TUVOO
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