Olympus M.Zuiko 40-200mm f/4 Lens Patent

Olympus filed a new lens patent for micro four thirds cameras. New patent includes Olympus M.Zuiko 40-200mm f/4 lens which is a new MFT lens with focal range of 40-200mm and constant f/4.0 aperture.

The new zoom lens for Micro Four Thirds cameras, Olympus M.Zuiko 40-200mm f/4 patent details are as follows.

Olympus M.Zuiko 40-200mm f/4 Lens Patent

Description and self-interpretation of the patent literature (Translated by Google)

• Patent Publication No. 2013-117667
  • Publication date 2013.6.13
  • Filing date 2011.12.5
• Example 1
  • Focal length f = 40.80-90.00-196.00mm
  • Fno. 4.08
  • Angle of view 2ω = 30.57-13.85-6.46 °
  • BF 31.51-27.21-24.06mm
  • 158.58-170.08-193.58mm length
  • Image height 11.15mm
• Olympus patents
  • 5-group zoom of positive and negative positive positive and negative
    • I earn a zoom rate
  • Inner Focus (Group 4)
  • To center the aperture thinned entire optical system

via Egami