Canon CanoScan D1250U2F CanoScan D1250U2F Quick Start Guide - Page 25

Precautions for Scanning at High Resolutions Please note that file sizes increase almost exponentially as the resolution is raised when scanning in color mode. Scanning at high resolutions may require more time for scanning and image processing. You are recommended to avoid raising the resolution beyond the minimum requirement to scan in color mode. File Size Estimates for Scanning an Letter/A4 Size Original in Color - 75 dpi - 100 dpi - 150 dpi - 300 dpi - 600 dpi - 1200 dpi Letter 1.58 MB 2.8 MB 6.3 MB 25.2 MB 101 MB 404 MB A4 1.6 MB 2.9 MB 6.5 MB 26.1 MB 104 MB 418 MB 104MB 418MB A4 color image 26.1MB 1.6MB 75 dpi 21..96MMBB 100 dpi 6.5MB 150 dpi 300 dpi 600 dpi 1200 dpi * These numbers are approximate and may differ from actual scan results. Resolution Guidelines • For uploading to a web site or viewing on a computer monitor, choose 75 dpi • For scanning print photos and magazine clippings, choose 150 - 300 dpi • For printing on a inkjet printer, choose a resolution approximately half the printer's rating (180 dpi, 360 dpi, 600 dpi or 720 dpi) A resolution higher than 600 dpi is effective for scanning relatively small originals that will be blown up to larger sizes for printing. Scanning at double the resolution 12"(30cm) 6"(15cm) 8"(20cm) 4"(10cm) Scanning at half the resolution 3"(7.5cm) 2"(5cm) • The maximum size of files scanned by the bundled PhotoBase program is limited by Windows Me and Windows 98 to 256 MB. *D1250U2F_QSG_E 23 D1250U2F Quick Start Guide 23 11/24/01, 7:19 AM