Olympus Patent for 1.4x Teleconverter Lens

Egami has discovered a new patent filed by Olympus. New Olympus patent describes a 1.4x Teleconverter lens for Micro Four Thirds mount.

The 1.4x Teleconverter lens provides  super-fast telephoto experience for sports or nature shots. Olympus already has a Teleconverter lens that is compatible with the multiple Olympus Zuiko digital lenses. This may well be a teleconverter for the upcoming M.ZUIKO Digital ED 40-150 mm f/2.8 PRO lens.

You can see the Google Translated patent details below.

Olympus Patent for 1.4x Teleconverter Lens

Description and self-interpretation of the patent literature

• Patent Publication No. 2013-235217
  • Publication date 2013.11.21
  • Filing date 2012.5.11
  • Related 2013-235218
• Example 1 master lens
  • Focal length f = 40.80 – 147.00mm
  • Fno. 2.88
  • Angle of view 2ω = 29.79 – 8.28 °
  • BF 32.137 – 28.750mm
  • 195.839mm – 151.882 total length
  • Image height 10.82mm
  • 17 pieces of 15-group lens configuration
  • Two four-sided aspherical
  • One ED glass
  • One Super ED glass
• Example 1 converter lens
  • Focal length f = 57.06 – 205.60mm
  • Fno. 4.03
  • Angle of view 2ω = 21.85 – 6.07 °
  • BF 14.200mm
  • 209.103mm – 165.146 total length
  • Image height 10.82mm
  • Magnification 1.40
  • Five 4-group lens configuration (positive and negative positive positive and negative)
  • One ED glass