I have configured iPhoto to open the image in Photoshop when I click the edit button, but for some reason iPhoto converts the image to a jpeg before handing it off to Photoshop. How can I have it just send the .NEF to Photoshop? Do I have to do the really slow method of doing an export, then opening in Photoshop (in which case I'll probably move to Aperture or Lightroom) or is there a way to change this behavior?