Auto ISO

Discussion in 'Photography Beginners' Forum' started by choudhrysaab, Jul 15, 2009.

  1. choudhrysaab

    choudhrysaab TPF Noob!

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    hey guys ... is setting the ISO to "auto" a good option or should it always be set at the lowest ISO possible? What I'm really trying to find out is that should one leave things on Auto e.g. ISO, White Balance etc or should those be changed manually every time pictures are taken.

    Thanx ... Abi =)
     
  2. PhotoXopher

    PhotoXopher TPF Noob!

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    I leave white balance on auto, I shoot RAW so I can always change it later if I need to.

    ISO I usually leave on manual unless I'm bumming around and don't want to mess with it or miss a shot because I forgot to change it, etc.
     
  3. manaheim

    manaheim Jedi Bunnywabbit Staff Member Supporting Member

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    Of all the things on a camera that can be set to Auto, ISO is the most potentially destructive to your images. Do not ever set ISO to auto.

    High ISO (particularly on lots of cameras where Auto ISO is an obvious option) will tend to significantly increase noise and reduce color depth and saturation.
     
  4. KmH

    KmH Helping photographers learn to fish Supporting Member

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    I shoot RAW too, but I usually set manually set both ISO and White Balance. I use a gray card I keep clipped to my camera strap when I change shooting locations and use that to set WB in ACR.
     
  5. PhotoXopher

    PhotoXopher TPF Noob!

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    ^ If I use Auto ISO I always set it to the max I'm comfortable with (3200 on the D90, for example).
     
  6. Josh66

    Josh66 Been spending a lot of time on here!

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    I'm not sure if I would use it, or if I would like it, but - I wish Canon had auto ISO...


    To me, it seems like they don't do it just to be different than Nikon...
     
  7. choudhrysaab

    choudhrysaab TPF Noob!

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    i have Canon XSi and it has the setting for Auto ISO.
     
  8. Josh66

    Josh66 Been spending a lot of time on here!

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    Really...?


    I guess it's time for an upgrade... (350D)
     
  9. choudhrysaab

    choudhrysaab TPF Noob!

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    i had 350D before and yes that didn't have it but XSi (450D) has it.
     
  10. Samanax

    Samanax TPF Noob!

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    I think you, as the photographer, should choose what ISO you want to shoot at...not the camera.
     
  11. AtlPikMan

    AtlPikMan TPF Noob!

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    I use Auti Iso sometimes, I still keep it as low as possible, for instance daytime i may have it set to 400 max evening maybe 800. I still keep an eve on it in the viewfinder and will lower it on a if i can get a second shot.
     
  12. Josh66

    Josh66 Been spending a lot of time on here!

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    My understanding is that (for the least noise) ISO should be at it's native setting, which isn't alwyas the lowest.

    I believe for Nikon that is 200, Canon is 100.


    Personally, I only use 100 & 1600. Nothing in between...
     

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