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RGB Values change from Ps to C1

cdc

On a TIFF file that originated in C1 I'll take it into Photoshop, clip the product, and add a solid color layer as the background. The RGB value of the solid color layer in Ps is R234, G234, B234. Once I save the TIFF and view in Capture One the background value is reading R238, G238, B238. If I export out of C1 as a jpg and view the jpg in PS it will read R238, G238, B238 as well. 

There are no adjustments applied in C1. Any idea's as to why this might be happening or is this subtle change considered normal behavior?

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Comments

7 comments

Date Votes
  • OddS.

    > cdc: no adjustments applied in C1

    How do you know? Not moving any slider is not always identical to "no adjustment".

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  • cdc

    How do I know? Because I'm the person using the program and I didn't make any adjustments to the TIFF files in Capture One and because I reset all adjustments to make sure no adjustments were inadvertently set. 

    What adjustments are you referring to anyway?  

     

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  • OddS.

    > cdc: Because I'm the person using the program and I didn't make any adjustments to the TIFF files in Capture One and because I reset all adjustments to make sure no adjustments were inadvertently set.

    I see, and you do know for sure that the tiff (file) has the R234, G234, B234 values and not the R238, G238, B238 ones?

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  • cdc

    Yes, I am applying a solid color layer with those values applied (#eaeaea) and those are the values within photoshop. 

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  • OddS.

    > cdc: ...those are the values within photoshop

    If I understand the scenario, C1 reads a tiff file written by PS. My question was about the values in that tiff file, not what PS tells you on the monitor.

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  • cdc

    I don't understand, how can I determine the RGB values that are in a tiff file without using the color picker in either Ps or C1? In Ps the values are R234, G234, B234. In C1 the values are R238, G238, B238.

    The solid color layer created in Ps uses hex code #eaeaea, which has values of R234, G234, B234. If I type that code into a third party hexcode tool (such as Rapid Tables), this also confirms the values should be R234, G234, B234. 

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  • OddS.
    • Edited

    > cdc: ...Ps uses hex code #eaeaea

    In my mind, the starting point in investigating this in the tiff file that C1 reads. That would be what PS actually put there. It does not really matter what or who wrote the tiff file or claims what is in it. You need to compare output from C1 to the actual input to C1 to verify that C1 changes those color values. That may well be, as C1 may apply its magic (based on your presets, styles,...) before even showing you the image, but you claim to have reset every bit of those things, so that can not be it, right?

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