"What does this button do?"

Discussion in 'Photography Beginners' Forum' started by Riggaberto, Mar 15, 2007.

  1. Riggaberto

    Riggaberto TPF Noob!

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    [​IMG]


    What does the other switch, the one next to the AF/MF do? I dont have the instruction manual for this lens so I dont know.
     
  2. Patrice

    Patrice No longer a newbie, moving up!

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    I'm no Canon expert, but it might be a focus limit switch similar to the Nikon 70-200. Big Mike can confirm that. Have you googled for the info ?
     
  3. Peanuts

    Peanuts TPF Noob!

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    There may be three buttons. There is the AF/MF, Image Stabilizer On/Off, in addition to one that may say 1/2. I believe 1 is for 'normal' image stabilization meanwhile 2 is for panning.
     
  4. RacePhoto

    RacePhoto TPF Noob!

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    That's the top secret "Focusing Distance Range" switch. :lol:

    Basically if you are in a situation where you know you won't be focusing closer than 8 feet, you can set it to ignore closer distances and it's supposed to focus faster.

    Mode I IS is for fixed objects, low light and when you might not have a stable mount. Things like hand held pictures. Think of it as a vibration correction.

    Mode II is for panning and objects that may move erratically.

    IS does not stop motion, of the subject. It just attempts to eliminate shake and any movement caused by the camera and the lens. There is a difference.

    Nice lens!
     
  5. Digital Matt

    Digital Matt alter ego: Analog Matt

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    That looks like the f/4 NON IS, which I have sitting in front of me. It's the focus limiting switch.
     
  6. fmw

    fmw No longer a newbie, moving up!

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    Shucks, I thought it was the phaser trigger. ;)
     
  7. Riggaberto

    Riggaberto TPF Noob!

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    Yeah unfortunately it's the non IS :(. I think the cost is what, like 1/2 or 1/4 the IS version?

    Anyway that's the info I was looking for and it's good to know, thank ya.
     

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