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Thread: The 'Grey' Part 2 - ISO 8000

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    Wildlife Moderator Steve Kaluski's Avatar
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    Default The 'Grey' Part 2 - ISO 8000

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    Another frame from the grey squirrel encounter.

    Thanks to those who posted or viewed on the last posting.

    Steve

    Subject: Eastern Grey squirrel (Sciurus carolinensis)
    Location: UK
    Camera: Canon EOS-1D X Mark III
    Lens:EF EF500mm f/4L IS II USM +1.4x III
    Exposure: 1/800s at f/10 ISO8000 EV 0
    Original format: Landscape, cropped to format
    Processed via: LRC 2021 (10.4) & PS2021 (22.05.0)
    Post Production: It’s ALL about what you do with the tools and not, which brand of tool you use.

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    Macro and Flora Moderator Jonathan Ashton's Avatar
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    Colours details on the squirrel absolutely spot on.
    The background shows considerable posterization on my monitor.
    I guess the leaf was there for a reason but I don't think it adds.
    There is a dark shadow on the shoulder back region is this a masking issue??

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    Wildlife Moderator Steve Kaluski's Avatar
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    Thanks Jon, no posterisation on my monitor, are you running 8 or 10 bit on your monitor? Can’t see any dark shadow either Jon, you haven’t been tinkering with your monitor by chance recently????
    Post Production: It’s ALL about what you do with the tools and not, which brand of tool you use.

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    Macro and Flora Moderator Jonathan Ashton's Avatar
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    Steve the monitor is calibrated using a 16 BIT look up table and largest patches. Gamut is 99% Adobe RGB. My max delta E at previous calibration was <0.8.
    Panel Bit Depth is 10 BITS (8 BITS + FRC). To all intent and purpose it is 10 BIT but it is not a genuine 10 BIT monitor. I have never seen this posterisation in any of your previously posted images.

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    The background does look neat with that posterization. Must just be from the compression. Great detail on the tree rat. Not a fan of the foreground leaf and grass. But it was there. That's nature for you.

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    Wildlife Moderator Steve Kaluski's Avatar
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    I have never seen this posterisation in any of your previously posted images.
    OK Jon, let's see if there is any change with this version.

    Just to expand, the original posting was 595KB, but the upload said 605kb DOH, so it could not upload the file, therefore I had to quickly re-output with 590KB which it accepted. Now remember, I said on Wednesday the Mac Pro we had just rebuilt, from the insides to a complete new OS and reinstalled all new Software, so basically everything was pristine. However, once downloaded and installed you have to run some test to ensure all the programmes are ALL running Lr, is talking to PS, and other converters are they too talking again to Lr & PS etc etc.... and in doing so a setting had been left within Lr which I always export from, because we had been playing around with a file to ensure everything was tickety-boo this had been left on, rather than zeroed. This should answer you query.

    I guess the leaf was there for a reason but I don't think it adds.
    The area is a massive Giant Rhubarb patch so the squirrel just popped its head up, through the vegetation.


    There is a dark shadow on the shoulder back region is this a masking issue??
    Cannot see anything on the shoulder, are you not referring to the back, that is natural, looked at the raw, never masking issues Jon.
    Post Production: It’s ALL about what you do with the tools and not, which brand of tool you use.

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    Macro and Flora Moderator Jonathan Ashton's Avatar
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    Steve I still see posterization, the dark on the back may well just be the angle of light leaving that area in shadow (it was purely a question I asked - I haven't seen the raw file)
    I sometimes find that when I save the files for web I set the size to 595kb and even then the web site frequently informs me the file is over 600kb so I have it set to 593kb that seems to be ok so far.
    Last edited by Jonathan Ashton; 08-21-2021 at 05:49 AM.

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    Wildlife Moderator Steve Kaluski's Avatar
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    Jon, download the file and open it up in PSCC.
    Post Production: It’s ALL about what you do with the tools and not, which brand of tool you use.

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    BPN Member Andreas Liedmann's Avatar
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    Hi Steve .... nice headshot !!
    IQ looks very nice on my old MBP 2012 , almost too sharp .
    Posterization very obvious , on website and even when watching in PS here on the MBP.

    TFS Andreas

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    Wildlife Moderator Steve Kaluski's Avatar
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    Thank Andreas, but would never trust the MBP for true viewing, but know you have limited access.
    Post Production: It’s ALL about what you do with the tools and not, which brand of tool you use.

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