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orange mask edit
The article seems to indicate that the orange mask is just for photographic printing and not for scanning.
As I understand it, it helps correct for the absorption of the dyes where there shouldn't be absorption, and so it applicable to either dircect optical printing or scanning. Gah4 (talk) 05:52, 18 December 2012 (UTC)
Well, the absorption differences can be canceled out numerically in the scan. How well that could be done depends on how well you know the absorption curves. If you knew it was only used for scanning, you might do without the mask, but then too many scanners are optimized for masked negative film. Gah4 (talk) 09:55, 24 January 2013 (UTC)
- AFAIK, orange masks are there to prevent scratching of the negative. --2003:71:4E6A:B424:9550:4DEB:BD20:97E3 (talk) 07:09, 30 November 2016 (UTC)
Date of Introduction edit
I shot Kodak film in the early 1970's. I never heard of Portra. I had hoped the article would have had a date Kodak introduced this film. — Preceding unsigned comment added by 2601:7:1A83:2538:2432:4878:BCBA:213F (talk) 05:11, 8 April 2015 (UTC)
As far as I know, Porta is the new name for the film previously known as Vericolor III, or VPS, with the usual evolutionary changes. Seems to me that it could have been Vericolor IV. Gah4 (talk) 23:37, 10 April 2015 (UTC)
External links modified edit
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Vericolor and Ektacolor edit
Any complaints if I make redirects from Vericolor and Ektacolor here? They are the predecessors of Portra. I don't know that there is any difference between VPS and Portra 160. Ektacolor are the C-22 predecessor professional negative films. Gah4 (talk) 23:34, 12 November 2018 (UTC)