Looking for greyscale testcards

Discussion in 'Digital Discussion & Q&A' started by James Kirk, Feb 27, 2021.

  1. James Kirk

    James Kirk TPF Noob!

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    Hello, I'm new and it's great to be here. This is a question for the purpose of understanding actual hues represented in old monochrome photos. Is there a website from where one can download greyscale testcards for RGB tones, both for orthochromatic and panchromatic films? Or if not a website, can someone point the way to how one may be able to find these. Also I'm interested in the same for early 19th century 'blue sensitive' monochrome photography. Thank you.


     
    Last edited: Feb 27, 2021
  2. 480sparky

    480sparky Chief Free Electron Relocator Supporting Member

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    You can't download and print them.... you have to buy one.
     
  3. James Kirk

    James Kirk TPF Noob!

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    Thank you. Any idea from where?
     
  4. 480sparky

    480sparky Chief Free Electron Relocator Supporting Member

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    I use a Digital Gray Card. Solid chunk of homogeneous plastic. But I don't think they're made any more. I reckon you could order one from Adorama, KEH, B&H etc.
     
  5. James Kirk

    James Kirk TPF Noob!

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    Sorry, I think I didn't explain myself clearly. I am attempting to work out the hues in old vintage monochrome photographs
     
  6. 480sparky

    480sparky Chief Free Electron Relocator Supporting Member

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    I gray card can't help you with that.

    Even if a gray card were included in the original image, it won't tell you what colors were what in the original scene. Some things you can assume, like a blue sky. Others you can guess at, like red brick. But there's no way to know whether someone's shirt was blue or red.
     
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  7. webestang64

    webestang64 Been spending a lot of time on here!

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    I doubt this will help but.......

    [​IMG]

    [​IMG]
     
  8. James Kirk

    James Kirk TPF Noob!

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    Yes, that is true but I am only trying to guage a mean average, not a precise measurement, hence the request - for example, depending on the type of orthochromatic film, green is usually darkish in early 20th century photos (just check the leaves on trees etc), beaches are sometimes bleached out which gives a clue to the inverse (bluish?) - red wasn't captured so accurately but you can still get a clue from flags or such things etc
     
  9. James Kirk

    James Kirk TPF Noob!

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  10. James Kirk

    James Kirk TPF Noob!

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    Thanks Webestang64 - do you know what sort of film is it meant for? I've got a similar one (but with different grey tones of course) for orthochromatic film.
     
  11. Original katomi

    Original katomi TPF Supporters Supporting Member

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    Re post 7
    Wow now that is interesting never thought of that. However,it is something I have learnt
    For the OP
    This may sound stupid, I will explain
    Do you have any colour blind friends
    A long time ago a friend of mine who like me did film photography was colour blind
    I once asked how did he get on, he knew that some things were a certain colour oranges for example
    Uk post boxes and phone boxes were red. And so on from these he knew , don’t ask me how, which shades of grey were what colours....
    could you make your own version of the post 7 idea, photo things that are in your images if they still exist or go onto places like face book that have old images of the same location bu5 in colour
    Otherwise I have no ideas of how you are going to translate old b&w tones into colour there are just so many variables temp, colour of original light source the difference on how film recorded the shades I know from past experience and working in digital not all film recorded images the same
    Can just wish you the best of luck
     
  12. webestang64

    webestang64 Been spending a lot of time on here!

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    Here....... ColorChecker - Wikipedia
     

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