Changing ISO vs Changing Film

Discussion in 'Photography Beginners' Forum' started by asfixiate, Jun 23, 2008.

  1. asfixiate

    asfixiate TPF Noob!

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    I searched several Posts and what I'm about to ask looks as if its unique.

    I'm not stuck in any scenario just curious. I can adjust the ISO setting in my camera. Some cameras have auto-iso.

    When it comes to film is adjusting your ISO the equivalent of changing between rolls of film?

    Would you have to carry 5 different types of film to get the same shots that 5 different ISO settings in a Digital camera has?

    Again I don't have a particular issue just would like to know.
     
  2. Alpha

    Alpha Troll Extraordinaire

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    You'd either have to carry multiple speeds of film, or shoot a particular film at a speed faster or slower than its standard speed; you then develop as if the film were at a different speed. This is called pushing/pulling.
     
  3. asfixiate

    asfixiate TPF Noob!

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    TADA! I ask and I receive. Thanks Alpha.
     
  4. Moglex

    Moglex TPF Noob!

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    Of course, whilst with digital you can adjust the effective ISO from shot to shot with 35mm you have to wait to the end of the roll.

    With cameras with exchangeable backs you can have different films loaded and chop and change (if you can afford the backs).
     
  5. Battou

    Battou No longer a newbie, moving up!

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    No, It is not hard to document the frame number one is on and rewind the film and remove it from the camera, change film and then put the previous roll back back in at a later time and advance to the frame one left off on.
     
  6. Moglex

    Moglex TPF Noob!

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    LOL. :lol: :lol: :lol:
     
  7. Battou

    Battou No longer a newbie, moving up!

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    Lol all you want, I shoot 35mm almost exclusively and have done it on a few occations, it is not hard.
     
  8. Helen B

    Helen B TPF Noob!

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    It depends a lot on which film you are using. I carry a camera loaded with Portra 800, and the speed dial set to 400. Portra 800 has a huge overexposure latitude, so shooting it at 200, or even lower, is not a problem. Nor is shooting it at 800, of course. I don't like to go much above 800 without push-processing the film. Otherwise it gets normal development if shot between 100 and 800.

    Best,
    Helen
     
  9. asfixiate

    asfixiate TPF Noob!

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    Thanks everyone.
     
  10. Helen B

    Helen B TPF Noob!

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    That's right, it is not hard. I used to do it a lot when shooting reversal film, switching speeds and daylight-tungsten. You simply write the number of frames taken on the film leader.

    Best,
    Helen
     
  11. Moglex

    Moglex TPF Noob!

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    I've done it myself (although I gave it a safety margin of two shots being somewhat cautious).

    It's just not something that I'd want to do as a matter of course.

    Whereas with digital it's just a few button presses.
     
  12. asfixiate

    asfixiate TPF Noob!

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    sounds like you got a lot of time on your hands.

    I think we do that with micro film where I work.
     

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