It's a real pain to manually remove the orange cast from a negative. It's much easier to take care of it at the scanning time. Take a look at something like VueScan. I've had good results using it with my old negatives.
Have you looked at SilverFast for your scanner? SilverFast has the drivers to auto correct for many different types of film and positive images and will remove the orange cast. Also if you know someone with Photoshop, move the image to Photoshop, make a new layer, use the average filter and then invert it and that will also remove the orange cast. IN CNX2 I was suggesting that you adjust the Chroma Channel and notch out the Orange. You will also want to use the Opacity Mixer when you play with color correction. For example you could apply changes only to the RED channel where most of the Orange would lie, or you could use the the Opacity of the Luminence channel turned down so only color is effected. Like I said, this is all so much easier in SilverFast.
Wed 23-Feb-11 10:06 AM | edited Wed 23-Feb-11 10:25 AM by ripvisitor
Well it is an negative, converted into a positive by the software. The sofwtare is Scanwizard V 7.31 for Microtec scanners. The scanner is a Medion ; but is in effect a MUSTEK 4800H. The software works ok, with photo's, but with neg's .. this is the only but constant problem i face so far. I have checked with Silverfast but they do not cover the MUSTEK 4800.
All the scanner software I have ever used in the past thirty years has features specifically for scanning negatives. There's no adjustment, it's a negative to positive switch in the software somewhere; you select a color negative as the source type and the scan software automatically converts to positive.
As a prepress professional for 25 years, let me second Gary's comments with these adds: Most of the software apps do a less-than-perfect job killing the orange and flipping the image, and the chances of doing it by hand in any editing app are effectively nil.
Plan B: get the negs printed and scan the prints.
Jon Kandel A New York City Nikonian and Team Member Please visit my website and critique the images!
Assuming you are working with NEFs in NX2, you can do this using White Balance. Set the gray point using a marquee sample taken in the orange film strip (either between frames or in the sprocket area). If you are working with a negative, then invert the colors. You can do this by flipping the LCH graph from x = y to x + y = 255 (i.e., from a diagonal line running lower left to upper right to a diagonal line running from upper left to lower right).