Yeah…it's a little dumb how there's no "invert" tool in Aperture 3, but oh well. Up until now, I gotten around Aperture 3's limitation here by using Hasselblad's Flexcolor scanning software. I don't adjust levels, add sharpening, add curves, remove casts; I turn all of the correction tools off. Then I set the film type to "color negative," and it does the inversion step. I'm not sure if it does anything else.
Originally Posted by chuck94022
I hope it doesn't, because I'm pretty close to doing it the way you're suggesting to do it. I have a copy of Photoshop (and if I didn't, my university has site licenses that I'm probably entitled to as a staff member/student) and I'm not afraid to use it. After all, it shouldn't be too difficult to just make an action to invert and (maybe) remove the orange cast…then I can use that action to bulk edit. Eh. I might as well. Once thing are set up, it's just a few clicks worth of extra work. I'll try it out on my next few batches.