How was the film/slides enlarged? Traditional method? Scanned? (more likely in today's age) If they are scanned, what scanner did they use? How good is the one that does the scanning? There is an article (see link below) showing the difference between different scanners. The differences are huge, even Imacon 848 and 949 are clearly inferior to high quality drum scans. http://www.largeformatphotography.info/scan-comparison/