VIOOH

• Production era - 1939-1963
• Type - Universal viewfinder for the focal lengths 3.5-13.5 cm with parallax adjusting lever at back of foot.
• Variants - Later models have nose thread for TUVOO with round, straight and lyre-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. Some have black nose and 2 have 'W.haven' with eagle (marine) insignia on side of lyre.
• Accessories - TUVOO (VIOAD in NY catalog) for 2.8 cm lenses. Early VIOOHversion lacks the threaded nose required to attach TUVOO.
• IMFIN - IMFIN or Imarect 1940 NY version with beaded side casing and large back plate.
• Reference - Pages 12 and 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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