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Thread: S1 IS zoom?

  1. #1
    Join Date
    Jun 2007
    Posts
    79

    S1 IS zoom?

    Hey J/w but what is the lens for the S1 IS? I know its a 10X but what would that translate to for a DSLR lens? Thanks!

  2. #2
    Join Date
    Mar 2005
    Location
    NYC
    Posts
    4,498
    10x by itself is meaningless...it only has meaning relative to the lesser number...

    Specifically, the lens on the S1 is 38-380mm (35mm equiv.).
    Some Gear: Nikon D700; Nikkor AF-S 50 f/1.4 G; Nikkor AF-S 24-85 3.f/5-4.5 G ED; Tamron 28-300 f/3.5-6.3 VC; Nikon SB-800; Velbon Maxi-F; Canon Pixma Pro 9000; Canon S3IS, Canon SD500; Epson 4990; Epson P5000; Wacom Intuos 3

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  3. #3
    Join Date
    Dec 2006
    Location
    So Calif
    Posts
    3,226
    Just in case JTL's accurate but short reply did not fully explain it...

    Zoom is ability to change the focal length of the lens - not the magnification, which is what many new users think.

    The "X" is just a measure of the range of the focal length of the lens - the larger "telephoto" number divided by the shorter "wide" focal length.

    So, you can have a 6mm - 72mm lens like the S3 for a 12X zoom. Or whatever the S1 has for a 10X zoom. In the case of DSLR, the numbers are bigger but the concept is the same. A "standard" zoom lens that comes with most DSLRs is 18-55mm or so - just about a 3X lens. However, you can get a 50-200mm zoom with a 4X range, or an 18-250mm for about a 13X range, or a 200-400mm zoom for a 2X range.

    So yes, X is essentially meaningless with DSLRs :-) But an 18-250mm is about the same ratio AND magnification as your S1.
    Pentax K20D/K5/15/21/40/70/10-17/12-24, Sigma 17-70 2.8-4.5/150-500, Tamron 90 Macro/70-200 2.8, Canon SX20 IS/Elph 500HS
    (formerly Pentax 50 1.4/50-200/55-300/K100D, Sigma 18-50 2.8/70-300 APO, Tamron 28-75, Viv 800, Tele-Tokina 800, Canon S3 IS, Samsung L210)
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