Bruce Watson
20-Sep-2007, 13:52
I've got a sheet of 400PortraNC that's given me an interesting problem. I'm trying to track it down to find the cause and then hopefully a correction so it doesn't happen to me again. Learning from my mistakes if you will ;)
The image in question is a late fall or early winter scene. Fall color in a snow storm. What I've found is that when I color correct the image, all the colors fall into line like they should with the exception of the blue sky parts. Instead of blue I get cyan. To be specific, this isn't an overall cast across the whole image, all the reds, greens, yellows, whites and grays all are fine. It's just the blue that's off.
Unfortunately I don't have a lot of experience with this film because it's pretty darn expensive - I only use it when I need the speed (and that day it was cold, seriously windy, and snowing so I really needed the speed), and that's typically in the understory where it's shady. This is the only sheet I've got with this film and any blue sky at all. So I don't have anything to compare to.
So, does anyone have a theory as to what might cause this, and perhaps what I can do to prevent it in the future?
The image in question is a late fall or early winter scene. Fall color in a snow storm. What I've found is that when I color correct the image, all the colors fall into line like they should with the exception of the blue sky parts. Instead of blue I get cyan. To be specific, this isn't an overall cast across the whole image, all the reds, greens, yellows, whites and grays all are fine. It's just the blue that's off.
Unfortunately I don't have a lot of experience with this film because it's pretty darn expensive - I only use it when I need the speed (and that day it was cold, seriously windy, and snowing so I really needed the speed), and that's typically in the understory where it's shady. This is the only sheet I've got with this film and any blue sky at all. So I don't have anything to compare to.
So, does anyone have a theory as to what might cause this, and perhaps what I can do to prevent it in the future?