Quote Originally Posted by rbrigham View Post
Hi

I am doing some portraits and would like to use a red filter to clear up blemishes on the skin
I know that this will not work due to the paper not being red sensitive
Is there another filter that will work with paper negatives

thanks

robin
If you're using variable contrast paper for your negatives, you can use a yellow filter. It probably won't have much effect on reducing blemishes beyond lowering overall contrast. I've found a yellow filter lowers the contrast of variable contrast paper negatives considerably.

If you're using graded paper, I think that emulsion is blue sensitive, so red, orange, or yellow filters won't work.