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Olympus Patent for 500mm f/4.0 IS MFT Lens

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Olympus has filed a new patent in Japan. The new patent describes the Olympus 500mm f/4.0 IS lens for mirrorless cameras with micro four thirds image sensors.

This is a super-telephoto lens covering a focal length of 1000mm and below are the first design of the Olympus 500mm f/4.0 IS lens.

From the patent application we can say the Olympus 500mm f/4.0 IS lens for m4/3 system cameras feature 14 groups in 17 elements, ED and Super ED glass. As from the name it will also include image stabilization technology. See below for the patent details.

olympus-500mm-f4-0-is-mft-lens-patent

Olympus 500mm f/4.0 IS Micro Four Thirds Lens Patent

Olympus 500mm f/4.0 IS Micro Four Thirds lens patent translated specs.  There is not yet information when Olympus make this lens into mass production.

Explanation and self-interpretation of the patent literature

  • Patent Publication No. 2015-108811
    • Published 2015.6.11
    • Filing date 2013.10.22
  • Example 6
    • Focal length f = 499.265 – 325.022mm
    • Fno 4.059 -. 2.630
    • Angle of view 2ω = 2.6 °
    • Image height Y = 11.15mm
    • FB 66.633mm
    • Total length 337.887mm
    • Minimum focusing distance 2m
    • Lens configuration 14 group 17 sheets
    • Super ED 1
    • ED 1
    • Seishibomake (negative positive and negative positive 6-group configuration grain positive and negative)
    • Inner focus (Group 3)
    • Anti-vibration (Group 5)

via Egami