I have about 8000 35mm slides dating from about 1966 to 2003. I decided to view the slides for the first time in about 15 years to pick out the family pics and mostly discard the rest as my daughter won't be interested. My Kodak commercial projector and German lenses were still like new plus a 60 inch screen. I was pleasantly surprised by the quality of the projected images. From kodachrome to fuji velvia, the images were sharp, colorful with a snappy visual appeal that rivals what I see from digital files on most better TV. Of course, not is all perfect. Slides can pop out focus, especially the edges, you need a dark room, bulbs burn out, slides have to be oriented correctly, projector lenses vary in quality. But, overall, very good for old technology. And, no post processing. Get it right the first time.
Greg
Greg