LO ISO - What's the downside

IcebearIcebear Registered Users Posts: 4,015 Major grins
edited August 9, 2010 in Technique
The lowest "proper" ISO on the D700 is 200. One can select in steps down to LO1.0, which is effectively ISO-100. Is there any downside? Nikon says "contrast is slightly higher than normal." I can only assume that is really only a concern if shooting JPG. :scratch

What is the real story?
John :
Natural selection is responsible for every living thing that exists.
D3s, D500, D5300, and way more glass than the wife knows about.

Comments

  • QarikQarik Registered Users Posts: 4,959 Major grins
    edited August 9, 2010
    The sensor is tuned to produce the most dynamic range at 200. If you go lower the dynmic range suffers. This may be fine if your image does not have a huge range.

    http://www.dpreview.com/reviews/nikond700/page20.asp
    D700, D600
    14-24 24-70 70-200mm (vr2)
    85 and 50 1.4
    45 PC and sb910 x2
    http://www.danielkimphotography.com
  • IcebearIcebear Registered Users Posts: 4,015 Major grins
    edited August 9, 2010
    That's a great review, Quarik. The limitations they point out at ISO 100 are primarily noticed in JPG shooting. Notable to me is that if you don't just blindly accept the default settings in ACR, you can get nearly a full F-stop more on either end of the dynamic range.

    That's why they put that "Recovery" slider in LR!
    John :
    Natural selection is responsible for every living thing that exists.
    D3s, D500, D5300, and way more glass than the wife knows about.
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