How do I set up files for LightJet enlargements?
Scanning: It is important to start with the best digital information possible. When scanning original film we recommend drum scans. Though there are a number of very high quality CCD scanners available today, Photo Craft offers both Drum Scans and Repro Scans for LightJet printing. Resolution: Scan at a resolution that is reasonable for the size prints you plan to make, but whenever possible, scan at a “true optical resolution” for the scanner being used. Most film sizes have a point at which there is no increase in value when scanned at a higher resolution. The LightJet has a phenomenal ability to interpolate image data. The LightJet images at 300 dpi, though the apparent resolution is over 4000 dpi due to the nature of writing to photographic paper with laser light. For large prints, we have used files as small as 100 ppi at final size and obtained very good results, however we recommend at least 200 ppi at final size for prints smaller than 20×30 and 300 ppi for prints smaller than
