[Toshi]

huh, cool. sounds like a useful thing to have. too bad the lens i'd like to use it on (sigma 12-24) doesn't take front mounted filters.

 

[PatBranch]

I'm using photoshop 7.
I did 14 contrast and 12 brightness. Then 5 saturation, then an unsharp mask.

Same contrast, then +22 green, -22 blue,+100 red, +6 constant (and monochrome checked) in the channel mixer. Last, an unsharp mask.