Today I tested with Epson V600 how different DPI settings are handled. I scanned using Epson Scan the same photo (of a 120 color slide film, that is 6×6 centimeters in size) with different DPI settings in 24 bit color depth. The photo, which I took last Autumn with Lubitel 166U, was not framed. Auto-cropping was used. Digital ICE was not used. The files were saved in JPG format with smallest possible compression. Here are the results…
- 50 DPI
- File size: 31 kilobytes
- Dimensions: 103×105 pixels
- 72 DPI
- File size: 33.5 kilobytes
- Dimensions: 149×151 pixels
- 96 DPI
- File size: 53.2 kilobytes
- Dimensions: 199×202 pixels
- 150 DPI
- File size: 110 kilobytes
- Dimensions: 311×316 pixels
- 200 DPI
- File size: 194 kilobytes
- Dimensions: 415×421 pixels
- 240 DPI
- File size: 272 kilobytes
- Dimensions: 498×505 pixels
- 266 DPI
- File size: 312 kilobytes
- Dimensions: 552×560 pixels
- 300 DPI
- File size: 409 kilobytes
- Dimensions: 622×632 pixels
- 350 DPI
- File size: 520 kilobytes
- Dimensions: 726×737 pixels
- 360 DPI
- File size: 553 kilobytes
- Dimensions: 747×758 pixels
- 400 DPI
- File size: 708 kilobytes
- Dimensions: 830×842 pixels
- 600 DPI
- File size: 1.33 megabytes
- Dimensions: 1245×11264 pixels
- 720 DPI
- File size: 1.91 megabytes
- Dimensions: 1495×1516 pixels
- 800 DPI
- File size: 2.45 megabytes
- Dimensions: 1661×1685 pixels
- 1200 DPI
- File size: 5 megabytes
- Dimensions: 2491×2528 pixels
- 2400 DPI
- File size: 16.2 megabytes
- Dimensions: 4983×5056 pixels
- 3200 DPI
- File size: 29.3 megabytes
- Dimensions: 6645×6741 pixels
- 4800 DPI
- File size: 55.5 megabytes
- Dimensions: 9967×10112 pixels
- 6400 DPI
- File size: 103 megabytes
- Dimensions: 13290×13482 pixels
- 9600 DPI
- File size: 219 megabytes
- Dimensions: 19935×20224 pixels
- Notes: Before using this setting the scanning software reminded that it might take a long time.
