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  2. A halo is a bright line that can appear in areas of high contrast on a photo when the photo has been subjected to very heavy amounts of editing, particularly HDR editing. An example of a high contrast area would be a dark mountain on a bright sky.

    • Photo

      The word ‘photo’ comes from the Greek word for light, and...

    • ORF

      What Is and ORF File and How Is It Used in Photography and...

  3. Apr 15, 2021 · Here, you will learn why they appear and how you can avoid them. We can roughly differentiate between two types of fringing: chromatic aberration and so-called “halos”. Here, we will talk...

    • Nils Heininger
  4. Halos, the bright lines, are obvious; the brighter, thicker, harder halos are the more obvious, while darker, thinner, softer halos are less obvious. Lines, the dark lines, are less obvious. As they get darker, thicker, and harder, they become more obvious. Know How To Look For It.

    • Chromatic Aberration
    • Sharpening
    • Excessive Clarity
    • Spillover
    • Luminance Changes
    • Phew!

    Chromatic Aberration is caused by a lens failing to focus all of the different colours onto the sensor at the same point. This results in a ‘fringe’ running along particularly high contrast edges which is usually red or cyan. It is most prominent when using poorer quality lenses but even top of the range lenses exhibit the problem to some degree. W...

    Sharpening basically increases the contrast of edges at a micro level, darkening the pixels on one side and lightening the pixels on the other side. As you apply more sharpening (using the Amount slider in LR) then the degree of darkening/lightening applied to the edge increases. In LR the Radius setting determines how many pixels from an edge shou...

    The third type of halo is to me much more obvious when looking at an image. It may have a proper name, but I’m just going to call it an ‘edge contrast halo’ as it is chiefly contrast changes along an edge that cause the problem. This may sound similar to what I just talked about regarding sharpening, and that’s because approach is very similar but ...

    While we're talking about adjustment brushes, another common halo comes from heavy handed use of adjustment brushes that I call ‘spillover’. This is where an adjustment is made but not confined within the appropriate area, causing other parts of the image to be incorrectly affected. Most often this might be brightening a mountain ridge, a tree or a...

    Finally for this post Lightroom's Hue-Saturation-Luminance (HSL) panel can also cause you halo problems. The most striking example is where you have an object with a bright blue sky behind. A common adjustment is to lower the luminance of the Blues to darken down the sky to give it more ‘pop’ (sort of mimicking the effect of a polariser). However i...

    We’re done. Though lengthy, hopefully the above gives you an idea of things to look out for and suggestions on avoiding them. It’s impossible to cover every eventuality in a post but I think I’ve knocked off the most common culprits. My final trick is to use an adjustment brush with negative Clarity. As well as undoing an overly strong Clarity adju...

    • contact@duncanfawkes.com
  5. Oct 25, 2022 · Halo has become something of a catchall term for any haziness, softening, loss of contrast, or indistinct detail seen around foreground (usually) elements in the final photograph. So the term halo can mean several different things depending on the context.

  6. Jun 14, 2022 · What Is A Halo? A halo is a bright band of pixels outlining a high contrast edge. They are most exaggerated at high contrast edges, where there is an abrupt change from dark to light or vice versa. A halo can appear in color and black & white imagery.

  7. Jul 3, 2022 · When spotting halos, it’s good practice to cover the sun with your hand and look around the sun. Still I recommend using dark sunglasses, because the sky is so bright. When can I see halos? Halos form in thin clouds high up in the atmosphere.

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