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  1. #11
    Junior Member

    Re: Images always stuck on ISO 3200

    I had the same issue with my D700. What I found was that if I was using flash, before it would increase flash output, it would raise the ISO to the max first. Not exactly what I wanted. I'm not sure, but it may have been doing the same thing with aperture priority, raising ISO before adjusting shutter speed. I eventually decreased the max ISO to 800. It would be better if the user could indicate which variable was automatically adjusted.

    › See More: Images always stuck on ISO 3200
    Last edited by srinaldi; 01-26-2013 at 07:09 PM.

  2. #12
    Junior Member

    Re: Images always stuck on ISO 3200

    You have your minimum shutter speed set to 1/500. That is very fast, and unless you are in very good light, the ISO is automatically going to shoot up.

    If the shutter speed needs to go below the minimum you've set, the ISO automatically increases.

    Set your minimum shutter speed lower, and see how it goes.

    Thats my undersyanding of how it works anyway.
    Thanks/Like Mike D90, LudwigVB Thanks/liked this post

  3. #13
    Senior Member
    funfortehfun's Avatar

    Re: Images always stuck on ISO 3200

    Thanks guys, sorry for the late reply. I guess I was trying to shoot in a very dark place, because one I got outside it was perfectly fine.

  4. #14
    Junior Member

    Re: Images always stuck on ISO 3200

    Quote Originally Posted by funfortehfun View Post
    No matter what mode I use, when I use auto-ISO, my images are always stuck at ISO 3200. I have auto-ISO set so that the maximum sensitivity is ISO 3200 and the minimum shutter speed is 1/500. Is there something I'm doing wrong, or is it my lighting?

    When I turn auto-ISO off sometimes I take pictures with a 1/10s shutter speed. My hands are extremely shaky.
    Hi there, i'm not sure if you have resolved your problem as yet but I noticed the exact same thing happening on my D5000. I fixed it by doing the following:

    Menu > Shooting Menu > ISO Sensitivity Settings > Auto Control > OFF

    Now when I select ISO from the "Home" screen it doesn't sit on 3200 anymore. I realised that the ISO was sitting on whatever I selected as my "Maximum Sensitivity". Remove this has given me back the control of selecting it myself.

    Rather silly but at least it works now...
    Chlo | Dear Chloe Photography | www.dearchloe.co.za

  5. #15
    Senior Member
    Mike D90's Avatar

    Re: Images always stuck on ISO 3200

    @funfortehfun I am not sure why you would be using such a high shutter speed indoors?

    You might need to do some tutorial reading and get a better understanding of shutter speed and aperture versus ISO settings.

    Usually, most people can photograph anything that is static, without flash, handheld at 1/100th second and get no blur. Some can shoot at 1/30th successfully if they are very stable. Shutter speed is what freezes any movement and is also what controls how much the ambient light affects your exposure.

    Aperture controls your depth of field and controls flash exposure when using flash for lighting.

    ISO simply controls how sensitive the sensor is to light but it will cause some grain noise at higher ISO numbers and with bad exposures in low light.

    Unless you are shooting something that is moving, be it human or animal or other relatively slow moving object you should not need more than 1/250th second shutter speed to freeze motion. With birds and other fast moving things you would need anywhere from 1/500th to over 1/2000th depending on what it is and how fast it moves.

    Your aperture and ISO have nothing to do with motion stopping except that they can be changed to allow for faster shutter speeds.

    So indoors, shooting pics of people or animals you should never need more than 1/250th shutter speed at max. I usually use 1/125th when shooting people and pets. Anything that is not moving you should be able to use 1/100th even with shaky hands.

    I would suggest setting Auto ISO to allow a maximum ISO of 1600 and a minimum shutter speed of 1/100th when shooting indoors. Then choose your aperture setting according to how much of the image you want to be in focus (DOF) and just let the shutter speed and ISO choose itself. If you get too much grain/noise in your pictures then set auto ISO to a maximum of 800.
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