Teaching Young Girls To Read in IR


Posted by E.J. Peiker on Thu Feb 08, 2018 9:33 am

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Mounds Garden - Florida
a6000 - 665nm, 24-70mm @ 24mm, ISO 200, f/8, 1/200s

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by Cynthia Crawford on Thu Feb 08, 2018 7:43 pm
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Amazing contrasts-the bright whites really bring out the figures in the statue. I am curious about how IR works- is this pretty much straight out of the camera, or is it a conversion...or is it some of each? (-meaning if it was a conversion, some elements might be left "as is" while others would be transformed).

However it was done, this is very dramatic!
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by Karl Egressy on Thu Feb 08, 2018 9:01 pm
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Pretty amazing picture, I can see it would work great on a large wall surface of a larger image size.
 

by E.J. Peiker on Thu Feb 08, 2018 9:51 pm
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Cynthia Crawford wrote:Amazing contrasts-the bright whites really bring out the figures in the statue. I am curious about how IR works- is this pretty much straight out of the camera, or is it a conversion...or is it some of each? (-meaning if it was a conversion, some elements might be left "as is" while others would be transformed).

However it was done, this is very dramatic!
All IR images require post processing and in the case of false color IR, a significant amount.  The look of the images out of the camera depend a lot on what wavelength light cut-off filter you use.  this one was taken with a 665nm which allows pretty much all of the red part of the spectrum and a little into the orange and yellow through so the image looks kind of a weird pinkish orange and black.  A 700-730nm filter allows just a tiny bit of red visible light through resulting in a red and white looking image.  Other filters all look different.  You then need to make a choice if you are going to go to B&W or false color.  I have some Nik Silver Effex presets made for 665 and 720 as those are the two cameras I have for B&W IR.  I first channel swap red and blue with a Photoshop Action and then apply the preset and that's pretty much it for B&W.  For color, it all depends on what look you are going for but often it too starts with a channel swap so that you get a blue sky.  When I attended a three day Lifepixel IR training session, much of it was spent on post processing the images as you are trying to translate things beyond human vision into something a human can see.
 

by Carol Clarke on Fri Feb 09, 2018 3:51 pm
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A very dramatic contrast between the dark statue and the garden foliage, almost a 3D effect!
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by Cynthia Crawford on Fri Feb 09, 2018 5:39 pm
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Thanks, E.J. for that very informative reply about your process. It is a whole other world! I hadn't realized it could be so complicated.
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