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Digital images of negatives I cant un-negative to true c
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De
14/09/2005 16:57:34
Dragan Nedeljkovich (En ligne)
Now officially retired
Zrenjanin, Serbia
 
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Forum:
Windows
Catégorie:
Informatique en général
Divers
Thread ID:
01049321
Message ID:
01049649
Vues:
14
>Well, when I shot a digital shot of a negative, the sharpness and brightness is great. But, the color is very bad. When I tell MS Image Suite to make a negative of this negative image it's looks like a blue black and white. So now I know that a digital image's "negative" and a photo "negative" are not the same.
>
>I can play around with the color, saturation, hue, etcetera, but it’s still doesn’t ever get to be a true color. I can’t find anything acceptable. I know it can be done, because as much as I was disappointed with the clarity of scanning a negative on my scanner, the color was converted correctly.
>
>Any tools, tricks, ideas out there?

The color negative has a so-called "mask", the reddish hue. I never understood the reasons for it, had to do something with the positive side of processing or whatever.

Anyway, when you invert colors in your shot, you get the inverse of that, i.e. somewhat blue. Postprocessing can correct the colors to an extent, but not quite - it's better to do it during shooting.

The trick is simple. Find a blank, transparent piece of negative and set your white balance on it - that's the color of white (or black, if you want to think in positive terms) that it gives you. You should find out how to do that on your camera - should be somewhere in the menus, or have a button for that. Note that this background color may be different between rolls of negative - different manufacturer, lab, speed, even lab temperature (how fresh were the developer and fixers?) etc etc. So for best results you should recalibrate the color for each roll. Luckily, it's just two to five clicks on most cameras.

Then take your shots. I've tried this before with my older camera, and I didn't actually have a tripod at the time, and improvised the stand for the extra lens from Legos... so it didn't really focus right each time, but I got good colors.

back to same old

the first online autobiography, unfinished by design
What, me reckless? I'm full of recks!
Balkans, eh? Count them.
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