VIOOH

• Production era - 1939-1963
• Code names - VIOOH with accessory TUVOO
• 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; some have black nose and 2 have 'W.haven' (Willemshaven) with eagle (marine) insignia on side of lyre - see Fontenelle archive below.
  • Cine version - For 1.5-15 cm lenses.
  • Gray wartime version - Engraved W.H. used back-to-front with a special eye-piece.
  • IMFIN or Imarect 1940 NY version with beaded side casing and large back plate.
• Accessories - TUVOO (VIOAD in NY catalog) for 2.8 cm lenses. Early VIOOH version lacks the threaded nose required to attach TUVOO.
• Evolution - VIOOH was preceded by VIDOM.
• Serial nos. - -10568-11873- -89383-
• Reference
  • Pages 12 and 13 of Dennis Laney's Leica 1984 Accessory Guide courtesy of Mike Butkus
  • LEICA CAMERAS HISTORICA
• Repair instructions
  • Colyn Goodson
  • George Burdicek
• Forum discussion
  • JCB's a little...VIOOH with TUVOO [1] [2] [3]
  • [4]
  • [5]
  • [6]
  • [7]
  • Fontenelle archive
  • Repair discussion