Lightroom and Blue Skies

I have decided to remove the mangled YouTube slide in the previous post, and redo the it as a blog-based slide show for this new post, with more details on what was taking place.

Adobe Lightroom 4.4

Adobe Lightroom 4.4

Adobe Lightroom is the RAW converter, image editor and organizer that I use most often. Using RAW files (and TIF, to a degree, but that makes Lightroom jumpy) allows the photographer a large range of corrections because RAW captures all the pixels uncompressed. That means changes to white balance, exposure, tone, clarity, vibrance, saturation, colour, luminance and lens profiles can all be done with less chance of introducing image degrading artifacts than if you tried to change a compressed file such as JPEG. One of the great features in Lightroom is the HSL panel which allows you to make changes to Hue (the color), Saturation (vividness or purity of the color) and Luminance ( the brightness of the color range). Below is an example of the changes that can be made using only the blue sliders…

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Note that these changes are universal: this works only because there is little blue in the grasshopper and the leaf. Unless you are moving your image into the abstract, these sliders must be used delicately! In practice and with natural subjects, I have found the luminance sliders to be the most useful, as it is the closest thing we have to emulate some of the effects of a polarizing filter: it allows you to remove some of the sheen from a colour so that it regains some of the original variations of tone which my otherwise be blown-out by the bright glare. I use the green and yellow luminance sliders quite often to help control the glare reflected back from leaves and yellow flowers.

(Edmonton, Alberta.Image of Melanoplus bivittatus, the two-striped grasshopper was taken in my front garden at 8:22 PM against a northern sky on 3 August, 2013. Canon 5D Mk.II with EF 100mm f2.8 macro lens. ISO 320, 1/200th sec. @ f13)

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This entry was posted in Alberta, Canada, Edmonton, macro, photography, Software, Technique, Winter and tagged , , , , , , , .

One Comment

  1. Ted C. MacRae 28 December, 2013 at 5:24 PM #

    Cool slide show.

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