Zuiko

Zuiko is the name of the camera lenses made by Olympus, from the first one mounted in 1936 on the Semi Olympus I to the present day. Zuikô is written 瑞光 in Japanese and means "auspicious optics". All the Olympus cameras use home made Zuiko optics.

Zuiko interchangeable lens series:

• E series
• OM series: see Olympus OM lenses
• M42 (FTL) series: see 42mm screw lenses
• Pen F series: see Olympus Pen F lenses
• Ace series: see Olympus Ace
• Exakta lens: see Exakta lenses
• Leica screw lens: see 39mm screw lenses

List of Zuiko lenses:

• 75/4.5, four element, three group
  • marked Takatiho Tokyo Zuiko 1:4.5 f=75mm, black face, on the early Semi Olympus I
  • marked Takatiho Tokyo Zuiko 1:4.5 f=7.5cm, black face, on the late Semi Olympus I, the Semi Olympus II and the Olympus Six I

• 75/3.5, four element, three group
  • marked Takatiho Tokyo Zuiko 1:3.5 f=7.5cm, white face, (uncoated?) on the Olympus Six II, the postwar Olympus Six and the Chrome Six I
  • marked Olympus Zuiko F.C. 1:3.5 f=7.5cm, white face, on some Chrome Six IIIA
  • marked Olympus D.Zuiko F.C. 1:3.5 f=7.5cm, white face, on some Chrome Six IIIA
  • marked Olympus D.Zuiko F.C. 1:3.5 f=7.5cm, black face, on the Chrome Six RIIA

• 75/3.5, five element, on some Olympus Six

• 75/2.8
  • marked Takatiho Tokyo Zuiko 1:2.8 f=7.5cm, black face, on the Chrome Six II
  • marked Olympus Zuiko F.C. 1:2.8 f=7.5cm, black face, (coated?) on the Chrome Six IIIB, Chrome Six IVB, Chrome Six VB and Chrome Six RIIB