I was playing with this last night and it has a lot of potential. I use this for b/w conversions sometime and was considering it for use with a camera that has had the bayer filter removed. It has a ridiculous amount of things you can do and the best part is it is free! Just thought I would throw that out there. I haven't figured out though if it would do inversion of a negative however, once that part is done, this program offers lots of choices.