LoneRangeFinder wrote:
Yes, I feel that the quality of a digital copy using your camera is superior to anything you can get done professionally. You can auto-bracket the shots and keep the best. Unless your original transparencies were well-exposed within the 1/2 stop recommended you may find this to be a necessary step.
Your DIY project allows repetition. A copy stand on a light table also works.
I mentioned in the original article that I saved the photographed slides in RAW. I was reminded by Retired2014's reply that this allows you to remove the extra high contrast inherent in most slides. That high contrast was great in a projected slide but not for display on a computer screen or for printing. It is, of course, also great for tweaking exposure and white balance.