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Olympus patents a super wide angle zoom (for compact cameras?).


Olympus patented a series of possible super wide angle zoom all starting with the focal length of 5mm and ending between 25mm and 35mm. May I ask some experts here if that lens is for a normal compact camera or for a larger size sensor? Thanks!
P.S.: Note that this is a very slow lens, that’s why I am having a doubt this may be for a normal compact camera…

Source: Freepatentsonline.

  • With an image height of 3.84mm, this is probably for a compact sensor camera?

  • Parci

    Probably for a compact camera… XZ-2 has a 6-24 mm lens, so let’s pray it is for an XZ-3. That would make an eq. 24-160 mm lens! :)

  • nobody

    Obviously, going by the image height, and the angle of view, this is for a sensor with a crop factor of about 5, not for a 4/3 sensor.

  • Andrew

    Actually I did the calculations and assuming a 1/1.7″ sensor (crop factor of 4.5333), the lens would be 23-155mm equivalent.

  • Anonymous

    Yeah, its a compact sensor lens. If that angle of view of 82.46 is horizontal it would be 21mm on the wide end, if its diagonal its 25mm on the wide end (in full frame terms).

  • Esa Tuunanen

    Figure 31 in full PDF shows it as folded optics compact.
    That’s why there’s that big empty space behind foremost element which is needed by prism.

    • Esa Tuunanen

      Which is also why abstract talks about reflective optical element in first group.

  • Hubertus Bigend

    Aperture: f/4.6 – 6

    Looks like a miniaturized, low-end compact camera’s lens.

  • Andy

    Assuming angle of view is Horizontal,
    82.46Deg Relates to 20.5mm Focal Length on 35mm format.

    20.5mm/5.07mm = 4.04 Crop Factor Suitable for a 1/1.7 sensor

    • Andy

      On Second thought the FOV is probably for the image circle so we are looking at a crop factor of 4.86 Suitable for 1/2.3″ sensor at
      24mm eq focal length

  • Mike

    Its a 1/2.33 sensor, 5.5x crop factor basically a 27.5-188.5mm so 28-190 or 28-200 if they fudge the numbers and F4.6-6.0 so i tiny slow lens in a cheap P&S… it does appear to me mostly inner zoom and inner focus

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