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JosephK

Seattle, WA, US
5589 posts

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"RE: D5100 exposure compensation"

JosephK Silver Member Fellow Ribbon awarded for his excellent and frequent contributions and sharing his in-depth knowledge and experience with the community in the Nikonians spirit. Nikonian since 17th Apr 2006
Wed 27-Jun-12 04:30 PM | edited Wed 27-Jun-12 04:33 PM by JosephK

The combination of ISO and shutter speed and aperture gives you an exposure value. Changing the ISO or shutter speed or aperture results in one of the others changing in the opposite direction to maintain the same exposure value. For example, if you double the ISO you then half the shutter speed to maintain the exposure value.

You change the exposure compensation when you don't like the exposure value picked by the camera. For example, the camera meter may be confused by all the snow around your skier friends and underexpose the scene because the camera does not know that all that snow is supposed to be white, not middle gray. You then might need to add some +EV to let in more light to get the snow back to white and your friends not underexposed.

There are two ways to change your EV compensation. In manual mode, you just change one of the exposure settings (shutter, aperture, ISO) -- handy for just a few pictures. Is any of the auto modes, you set the EV value to a +/- value and the camera does the calculations -- handy for many shots.

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Joseph K
Seattle, WA, USA

D700, D200, D70S, 24-70mm f/2.8, VR 70-200mm f/2.8 II, 50mm f/1.4 D,
17-55mm f/2.8 DX, 70-300mm f/4.5-5.6 VR, 18-70mm f/3.5-4.5 DX

A topic tagged as having a question D5100 exposure compensation [View all] , pencho , Wed 27-Jun-12 04:19 PM
Subject Author Message Date ID
Reply message RE: D5100 exposure compensation JosephK Silver Member Fellow Ribbon awarded for his excellent and frequent contributions and sharing his in-depth knowledge and experience with the community in the Nikonians spirit.
27th Jun 2012
1
Reply message RE: D5100 exposure compensation pencho
27th Jun 2012
2
     Reply message RE: D5100 exposure compensation MEMcD Moderator In depth knowledge in various areas
27th Jun 2012
3
          Reply message RE: D5100 exposure compensation pencho
28th Jun 2012
5
               Reply message RE: D5100 exposure compensation MEMcD Moderator In depth knowledge in various areas
28th Jun 2012
6
               Reply message RE: D5100 exposure compensation coolmom42 Silver Member Awarded for her enthusiastic support of the community and exemplifying the Nikonian mission “Share, Learn and Inspire”
28th Jun 2012
7
Reply message RE: D5100 exposure compensation aolander Silver Member
27th Jun 2012
4