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Thread: Focal length on 707

  1. #1
    Member
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    Jan 2002
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    Singapore, Singapore, Singapor
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    Default Focal length on 707

    Hi,

    i just wonder... aside from reading the exif itself... is there any way of telling what is the focal length on a 707 or a 717?

    unlike a SLR lens where there are markings... mine doesn't seems to show anywhere...

    i just noticed that 828 has some markings on the lens barrel...

    anybody?

    Thanks

  2. #2

    Default

    Quote Originally Posted by Michael Ang
    Hi,

    i just wonder... aside from reading the exif itself... is there any way of telling what is the focal length on a 707 or a 717?

    unlike a SLR lens where there are markings... mine doesn't seems to show anywhere...

    i just noticed that 828 has some markings on the lens barrel...

    anybody?

    Thanks
    The focal length of the F707 is actually 9.7-48.5mm, which is equal to 38mm - 190mm on a 35mm format, due to the smaller sensor size (2/3")

    The 707 and 717 is a electronic zoom, meaning you can rotate the ring beyond a complete turn and yet it will still continue turning in the same direction.
    (so you can't add markings on the ring)

    The 828 has a mechanical zoom and I think SONY has decided to add markings to make it look more like a SLR.

    There is no way to tell the focal length of the F707, when composing a shot, only after the shot was taken and using a EXIF reader to extract the info, even then it will only the actual focal length (between 9.7 to 48.5mm) and not the 35mm equivalant
    Last edited by Winston; 17th August 2003 at 11:57 AM.

  3. #3

    Default

    use this...

    [ (focal length shown on exif - 9.7 / 38.8) * 152 ] + 38
    Last edited by junyang; 18th August 2003 at 11:50 PM.

  4. #4

  5. #5
    Member
    Join Date
    Jan 2002
    Location
    Singapore, Singapore, Singapor
    Posts
    318

    Default

    hi everybody,

    thanks... yes... butthe camera still doesn't show the focal length.. neither 707 one or 35mm one.. sigh

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