OUBIO

• Production era - 1959-1983
• Code number - 16466
• Optical thickness - 2.25 cm
• Type - Visoflex II /Visoflex III adapter for lens heads:
  • F = 12.5 cm 1:2.5 Hektor - EF = 1.3 x
  • Elmar f= 13.5 cm 1:4.5 - EF = 1.2 x
  • Hektor f= 13.5 cm 1:4.5 - EF = 1.2 x
  • F = 20 cm 1:4 Telyt - EF = 1.3 x
  • F = 20 cm 1:4.5 Telyt - EF = 1.2 x
  • 1:4.8 / 280 Telyt I - EF = 1.1 x
  • 1:4.8 / 280 Telyt II - EF = 1.3 x
  • F = 40 cm 1:5 Telyt I - EF = 1 x
  • F = 40 cm 1:5 Telyt II - EF = 1 x
  • 1:6.8 / 400 Telyt - EF = 1.5 x
  • 1:6.8 / 560 Telyt - EF = 1.5 x
• Extension tube - for greater magnification use with OUFRO.
• Source
  • Dennis Laney's Leica Accessory Guide (1st edition) pgs 49-50 courtesy of Mike Butkus
• Forum discussion
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