I don’t have a digital camera but a technique I have used
successfully after manipulating a conventional slide or print on my
graphic programme is to print the image out at about 6"x4" size at a
resolution of 5 or 600 dpi. Then re-photograph the image onto Fugi
Velvia slide film.
While the image is on the graphic programme I will usually put a dark
frame around it, easier to photograph that way.
Use camera on a tripod, a good macro lense and a smallish aperture.
You will be surprised at the quality of the result.
Regards, Keith Torckler, Cornwallis, New Zealand