1. FishyFish

    FishyFish

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    Nige
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    I got this book for Christmas:

    8AD97ED2-458C-4556-8391-280393052803.jpeg

    On page 28-29 is the following:

    FBDF00A4-EEFA-43DC-A093-0D3AB76416C0.jpeg

    I reckon someone on here will probably enjoy this. :D
     
    Mintchocs, steveo_mcg, Woodsy and 4 others like this.
  2. ChrisR

    ChrisR

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    Chris
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    Brilliant, I think I actually understood that (though would fail a test!)
     
  3. FishyFish

    FishyFish

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    Nige
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    I now feel the need to find a copy of the original Ladybird book from whence the image came. :)
     
  4. niko

    niko

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    nik
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    love it:p what book was it originally from:confused::D
     
  5. FishyFish

    FishyFish

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    Nige
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    Not sure, but I’d expect this one.
     
  6. niko

    niko

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    i cant believe how many of the books on there i would love to own:confused:-geek me:eek:
     
  7. Carl Hall

    Carl Hall

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    Carl
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    This is pretty interesting! Can anyone explain to me why there is a filter between the blue and green layers, but not between the green and red layers?
     
    ChrisR likes this.
  8. john.margetts

    john.margetts

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    The blue layer is only sensitive to blue light. Red and green layers are both sensitive to blue light as well as the colours they are intended to be sensitive to.

    Blue light has more energy than green or red light and will affect all photographic material. In order to make the green and red layers sensitive to any light, they have dyes added. The dye added to the green layer does not make it sensitive to red light and the dye added to the red layer does not make it sensitive to green light. The blue layer has no dye added to it as it is not necessary.
     
    Carl Hall and ChrisR like this.
  9. Carl Hall

    Carl Hall

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    Brilliant, thank you! :)
     
  10. FishyFish

    FishyFish

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    Nige
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    So, I went and bought a copy of the original Ladybird book. :)

    75105DC2-91B9-477F-972C-ADFB9812D6E6.jpeg 7000A6C8-78E8-4D2A-8BAA-C0BD0B2F8985.jpeg
     

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