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  1. #11
    Senior Member

    Re: Using Auto ISO and Manual mode.

    It seems Auto ISO is favourite as a bit of grain is easier to fix than out of focus shot. However, in the March issue 43 of NPhoto, article LIGHTBOX, images from readers show nearly all images shot at ISO100. (One image was with a shutter speed of 20secs while the next was 0.4 secs but both at ISO100)I am still a beginner and still finding it difficult to decide among all the advice what to do. I tried setting the ISO to 100 (My D7000 only seems to want to set a minimum of ISO200) but my images came out underexposed. If ISO is set to 100 is it best to adjust the shuttter speed or aperture? I am trying to get sharp DOF in architecture/landscape so usually try f/8-F/22. Any assistance appreciated.


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  2. #12
    Senior Member
    J-see's Avatar

    Re: Using Auto ISO and Manual mode.

    Quote Originally Posted by JJM View Post
    It seems Auto ISO is favourite as a bit of grain is easier to fix than out of focus shot. However, in the March issue 43 of NPhoto, article LIGHTBOX, images from readers show nearly all images shot at ISO100. (One image was with a shutter speed of 20secs while the next was 0.4 secs but both at ISO100)I am still a beginner and still finding it difficult to decide among all the advice what to do. I tried setting the ISO to 100 (My D7000 only seems to want to set a minimum of ISO200) but my images came out underexposed. If ISO is set to 100 is it best to adjust the shuttter speed or aperture? I am trying to get sharp DOF in architecture/landscape so usually try f/8-F/22. Any assistance appreciated.
    I shoot at ISO100 only but it's only possible when you know exactly how far you can push your cam and what you can normalise in post.

    It's not a "shoot-load-ready" style of shooting.
    Thanks/Like JJM Thanks/liked this post
     

  3. #13
    Senior Member
    Challenge Team
    Eyelight's Avatar

    Re: Using Auto ISO and Manual mode.

    Quote Originally Posted by JJM View Post
    It seems Auto ISO is favourite as a bit of grain is easier to fix than out of focus shot. However, in the March issue 43 of NPhoto, article LIGHTBOX, images from readers show nearly all images shot at ISO100. (One image was with a shutter speed of 20secs while the next was 0.4 secs but both at ISO100)I am still a beginner and still finding it difficult to decide among all the advice what to do. I tried setting the ISO to 100 (My D7000 only seems to want to set a minimum of ISO200) but my images came out underexposed. If ISO is set to 100 is it best to adjust the shuttter speed or aperture? I am trying to get sharp DOF in architecture/landscape so usually try f/8-F/22. Any assistance appreciated.
    If you are doing shots with a tripod, my thoughts would be to keep ISO low, set your aperture small for maximum DOF and then set the shutter speed for as long as needed for the available light and/or use some portable lighting.
    Thanks/Like JJM Thanks/liked this post
     
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  4. #14
    Senior Member
    wev's Avatar

    Re: Using Auto ISO and Manual mode.

    I find that using auto ISO almost always results in over-exposed shots. In very bright SoCal sunlight at 200, the camera still jumps to 400 ISO and the image is blown. I pull the speed back to 100 and it still shots at 350+. I drop auto ISO, reshoot at 200 and get a perfect image. Unless I am shooting in very unfavorable light or really need to push the speed, I have stopped using auto entirely.
    Thanks/Like JJM Thanks/liked this post
     
    wev
    American Silversmiths

    d500
    d5300 x 2
    Tamron 150-600/5-6.3, Tamron 16-300mm/3.5-6.3, Tamron 90mm/2.8 macro
    Nikon 18-55mm/3.6-5.6, Nikon 55-200mm/4-5.6
    Nikon 35mm/1.8, Nikon 50mm/1.8
    Vanguard Alta Pro 263AT tripod, CP324 monopod
    SBH 100 ball head, PH 32 pan head
    SB-700 Speedlight

  5. #15
    Senior Member
    J-see's Avatar

    Re: Using Auto ISO and Manual mode.

    Quote Originally Posted by wev View Post
    I find that using auto ISO almost always results in over-exposed shots. In very bright SoCal sunlight at 200, the camera still jumps to 400 ISO and the image is blown. I pull the speed back to 100 and it still shots at 350+. I drop auto ISO, reshoot at 200 and get a perfect image. Unless I am shooting in very unfavorable light or really need to push the speed, I have stopped using auto entirely.
    When I used auto-ISO, I simultaneously used exposure compensation to have some control over it. On the D750 EV worked while in manual but on the D3300, it is not an option. It still works when you have set it to a value but you have to get out of manual if you want to change it.

    If you know it always overexposes one stop, you pick -1EV and auto-ISO will do it correct.
    Last edited by J-see; 02-21-2015 at 05:30 PM.

  6. #16
    Senior Member

    Re: Using Auto ISO and Manual mode.

    I still think in Manual so this works well for me. Works well with the D5300 with the few tests I just out it through. I like the technique.

  7. #17
    Senior Member
    mikew's Avatar

    Re: Using Auto ISO and Manual mode.

    The D7100 tends to over expose in this mode but i dialed in -1/3 and it makes things a lot better.
    Mike

    Nikon D500,Sigma 100-400,Sigma 105 macro

    Nikon 1 V2,FT-1,10-30mm 30-110mm Viltrox extension tubes








  8. #18
    Senior Member

    Re: Using Auto ISO and Manual mode.

    I only use auto ISO when I am trying to capture fast moving action. It lets me pick the quick shutter speed and aperture I want without having to worry about the exposure when shooting in burst mode. Any other time I try to keep the ISO low.

  9. #19
    Senior Member

    Re: Using Auto ISO and Manual mode.

    Yes I try to keep the ISO as low as possible as recommended by many, especially in the NPhoto magazine. I am curious to know how to keep ISO at 100 whether using shutter speed of 20secs or much faster as in NPhoto March edition.

  10. #20
    Senior Member
    J-see's Avatar

    Re: Using Auto ISO and Manual mode.

    Quote Originally Posted by JJM View Post
    Yes I try to keep the ISO as low as possible as recommended by many, especially in the NPhoto magazine. I am curious to know how to keep ISO at 100 whether using shutter speed of 20secs or much faster as in NPhoto March edition.
    Keeping ISO low isn't the hard part, it's knowing how far you can push it before you can not salvage the shot. At slow shutters you can easily use low ISO since there will be plenty of light and ISO does not affect that directly but at fast shutters, incoming light is limited which makes using low ISO a rather technical affair.

    You can only go as far as your cam can handle.





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