Or is this something that can never work because it is simply not possible that way? Feb 14, 2. Messages: 4, The magic property of orange mask is that it's always there: either in case of no exposure as visible orange mask, or in case of exposure as unwanted density. You get correct colors after inversion, because this constant density can be easily filtered away. BUT: you won't ever get neutral, transparent white with orange masked C film.
Such a thing would hardly be useful as slide Feb 14, 3. Hmm ok, so what you are saying is that I could get rid of the orange tint in my proposed way, but would end up with a kind of grayish overlay on top of my colors?
And over exposing alot or other extreme measures will not change that ever? Feb 14, 4. Feb 14, 5. Why not? I said above it is for an experiment I am working on. When it works out fine I can show you why it's nice. Feb 14, 6. By exingo on Feb 23, How to use color channel as layer mask? Old photos have turned orange how to get the color back? How do I adjust color balance to make one image look like another? By cjtwantstoknow on Nov 26, Why Colour Negative is Orange. Why Colour Negative is Orange The dyes used in colour films have to satisfy two main criteria; they have to be able to be formed in the colour process from a reaction between the silver halides being developed, the couplers in the emulsion and the colour developing agent in the developer and they have to have certain colour photographic qualities.
Red Separation. Green Separation. Blue Separation. Magenta Layer with unwanted red and blue absorption. Cyan Layer with unwanted green and blue absorption. Yellow Layer with unwanted red and green absorption. Magenta layer without unwanted absorption. Cyan layer without unwanted absorption. Yellow layer without unwanted absorption. When you reverse the image and adjust for the correct colour in your editing software, the mask will factor in and you'll obtain accurate colour reproduction.
You can do this with your camera with a good macro lens and a lightbox but the process can be more tedious if you have many negatives to digitize. I've done that with 8x10 colour negatives that won't fit in my scanner and I was able to obtain good colour reproduction- no orange cast! I could have scanned 4- 4x5 sections and laced them together but that is even more tedious.
I am suspecting here that many people have little understanding of color printing from color negatives. And this leads to a lot of confusion about digitizing them for use with digital systems. In the "old" days generally only two color filters were used to print C-prints, Magenta and Yellow.
The Cyan was really touched for color negatives. Note, that Cyan is "opposite" the Orange cast of the negatives. Color negatives are a different matter.
One really needs to know what the "color pack" correction that is needed for your negatives in PP. Personally I find it much easier to use a Scanner to copy color negatives where the scanning software can correct the color mask to create a fairly accurate color positive. When Ps or Lr or other PP can be used to correct the color of your copied image. Color negatives have an overall orange mask, designed to aid photo printing of negatives onto regular photographic paper.
The orange mask makes scanning color negatives difficult. Its presence seriously interferes with "automatic" correction of any real color casts. Color casts often remain, and must be manually removed. The photofinisher did this for us in prints, but it's our job now. Digital color balance is easier than darkroom work, but color balance is harder for negatives than for prints or slides.
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