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Thread: Not Mars

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    Lifetime Member Michael Gerald-Yamasaki's Avatar
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    Default Not Mars

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    Greetings. Another play on glacier crevasses... added a flip with a low opacity overlay blend, Topaz Simplify, InFocus, Adjust.

    Thanks for looking.

    Cheers,

    -Michael-

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    Love the soft texture and the hard, highlighted lines; and the colour, wow! Did the original colour have any reddish element to it at all? I see a few places where the reds looked clipped- mainly left hand side. Are you able to control these(?), or maybe it doesn't matter!

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    BPN Member Cheryl Slechta's Avatar
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    Hi, Michael, I love this version. It looks more like sand dunes than the first one.
    "It is only with the heart that one can see rightly" - The Little Prince

    http://tuscawillaphotographycherylslechta.zenfolio.com/

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    Lifetime Member Michael Gerald-Yamasaki's Avatar
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    Cheryl, John,

    Thanks much for your comments.

    John, no blown reds, far from it... if fact, nothing over 200 in the red channel except in the white stripes in the crevasses. There are some areas where the color contrast is a bit less, which is what I think you are seeing (the reduction to 8-bit sRGB jpeg from 16-bit prophoto tiff compressed a few areas particularly in the left as you mention), but the red channel there is in the 180s.

    You had me going there for a moment (what? blown reds!) Such a thing would be surprising given the way I construct color in this type of work.

    Cheers,

    -Michael-

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    BPN Member Kerry Perkins's Avatar
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    Michael, so when are you going to get some landscapes of Mars? I would like to make some comparisons... These are really cool and have an other-worldly appearance. Those crevasses must be huge...
    "It is an illusion that photos are made with the camera... they are made with the eye, heart, and head." - Henri Cartier Bresson

    Please visit me on the web at http://kerryperkinsphotography.com


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    Quote Originally Posted by Michael Gerald-Yamasaki View Post
    Cheryl, John,

    Thanks much for your comments.

    John, no blown reds, far from it... if fact, nothing over 200 in the red channel except in the white stripes in the crevasses. There are some areas where the color contrast is a bit less, which is what I think you are seeing (the reduction to 8-bit sRGB jpeg from 16-bit prophoto tiff compressed a few areas particularly in the left as you mention), but the red channel there is in the 180s.

    You had me going there for a moment (what? blown reds!) Such a thing would be surprising given the way I construct color in this type of work.

    Cheers,

    -Michael-
    Sorry to "scare" you Michael! I should have described it in a different way! It must be the same areas to which you are referring. It's the small-scale areas of brighter orange that appear to lack detail. As you know you can get that sort of an effect (not saying this happened here!) when you clip highlights, then move the whole histogram to the left. This results in a "cliff-edge" on the right hand side where all the pixels have the same value, it's just not 255 any more.

    I must look at earlier posts in this theme!

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    Lifetime Member Michael Gerald-Yamasaki's Avatar
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    Quote Originally Posted by John Chardine View Post
    Sorry to "scare" you Michael! I should have described it in a different way! It must be the same areas to which you are referring. It's the small-scale areas of brighter orange that appear to lack detail. As you know you can get that sort of an effect (not saying this happened here!) when you clip highlights, then move the whole histogram to the left. This results in a "cliff-edge" on the right hand side where all the pixels have the same value, it's just not 255 any more.

    I must look at earlier posts in this theme!
    John, I really appreciate your comments. The concern I had over blowing reds would have rocked my world quite a bit (I've developed a work flow that avoids blowing channels, so if I were blowing channels it would invalidate that part of my workflow.). That said I did look into what you were seeing and how it was being expressed. There is indeed a "cliff-edge" to the reds in the posted image. Some investigation shows it being introduced by the conversion of prophoto to sRGB. Conversion to aRGB shows no such edge, nor is it in the original.

    So the issue is in the gnarly color representation/gamut/display arena. Sigh. Something for me to ponder.

    Cheers,

    -Michael-

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