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Exposure or Brightness

Discussion in 'PhotoShop & Editing Tips, Tricks and Tutorials For' started by David Payne, Apr 17, 2017.

  1. David Payne

    David Payne Well-Known Member Premium Member

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    Hi All
    I am using Affinity Photo software and in the RAW section I there are both exposure and brightness sliders.
    To my untrained eye they both seem to do the same thing. What is the difference between them?
     
    Mike Singh likes this.
  2. SeanNeedham

    SeanNeedham Ol' Sparky Honorary Life Member

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    Generally the exposure affects the whole image linearly; it pushes highlights, mids and shadows up or down by the same factor regardless.

    Brightness on the other hand, does a similar thing but instead of affecting each area of the image it's more biased to effecting the mid tones and keeping the highlights intact better.
     
    Mike Singh and David Payne like this.
  3. David Payne

    David Payne Well-Known Member Premium Member

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  4. MikeB

    MikeB Old Hand Premium Member

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    If Affinity Photo is designed to mimic Lightroom then @SeanNeedham has it exactly right. Exposure changes the exposure value (EV) across the entire histogram whereas Brightness is weighted to have less effect in the Highlights therefore better preserving highlight detail.
     
    David Payne likes this.
  5. David Payne

    David Payne Well-Known Member Premium Member

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