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Firmware Update

Olympus Patent - 1.4x Teleconverter for Micro Four Third Mount

Teleconverter-for-Micro-Fou

Olympus already had a Teleconverter for its fouirthird mount (see here), now a new patent surfaced over the web that shows 1.4X teleconverter patent for M4/3 mount. Details translated by google below

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

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