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View Poll Results: Would you buy & use a modern Autochrome-type film?

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  • Yeah, probably.

    52 66.67%
  • Probably not.

    6 7.69%
  • Would have to see the results first.

    20 25.64%
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  1. #61

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    Oh - and because my high school chemistry is very limited, I have lingering memories in my head of potato starch under a microscope -- but I have no clue if other starches are also cellular or granular like that. We have a box of cornflour starch in the pantry, could that be used?

  2. #62
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    For Autochrome it is still R/G/B and you develop to a negative.

    Liquid light is not red sensitive at all. It will not work unless you red sensitize it.

    PE

  3. #63

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    Oh OK - so you could only use an autochrome negative to make an autochrome positive?

    I forgot that liquid light is orthochomatic, we will have to leave to another thread how to red sensitize it.

  4. #64
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    IDK what one would do to make an Autochrome positive, as I have no reference here for it. The negative was shown here but no positive, and you cannot make an additive print.

    As for red sensitizing LL, IDK either. It will require some R&D and T&E on your part. I only do this with my own emulsions since it difficult to predict for other products.

    PE

  5. #65

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    Could you just get a 4x5 sheet of Tmax 400 that is sensitive to all colors and then have a seperate color screen to put over it for exposure? Expose and develop the film and put the screen back for printing / scanning? Alignment would be possible. Think about dye transfer printing and or masking.

    Using the above method you might be able to get some interesting effects by putting the screen out of alignment. You could photograph and green tree but make it red or blue my putting the screen back differently.
    Last edited by brianmquinn; 04-28-2012 at 09:31 AM. Click to view previous post history.

  6. #66
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    That would work.

    PE

  7. #67

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    Using DR5 to develop the film you could also have a positive with this method. Or you could reverse process it yourself with Photographers' Formulary Reversal Process Developer T-Max for Black & White Slides.

    Now if only I could get myself a screen I could try this out.

  8. #68

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    I just found this earlier thread. It's worth a read if you have not seen it yet.
    http://www.apug.org/forums/forum42/7...utochrome.html

  9. #69

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    I would be surprised if it would be possible to re-register the screen precisely enough.

  10. #70
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    Reregistration has been done.

    PE



 

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