Ideal Scan Sizes for 35mm Slides
To calculate the ideal size (in pixels) of a scan or other image for use in 35mm slides:
- Determine the size of the image as printed on 11" paper.
- Choose a quality level that meets your needs.
- Use the table below to determine the size of your image/scan in pixels.
| Desired Quality Level | ||||
| Size on 11" page: | Super | Excellent | Good | Fair |
| 1 inch | 372 | 186 | 93 | 47 |
| 2 inch | 744 | 372 | 186 | 93 |
| 3 inch | 1116 | 558 | 279 | 140 |
| 4 inch | 1488 | 744 | 372 | 186 |
| 5 inch | 1860 | 930 | 465 | 233 |
| 6 inch | 2232 | 1116 | 558 | 279 |
| 7 inch | 2604 | 1302 | 651 | 326 |
| 8 inch | 2976 | 1488 | 744 | 372 |
| 9 inch | 3348 | 1674 | 837 | 419 |
| 10 inch | 3720 | 1860 | 930 | 465 |
| 11 inch | 4092 | 2046 | 1023 | 512 |
- More pixels = bigger files but better quality images
- File size (in bytes) for true color images is: Vertical Pixels x Horizontal Pixels x 3
- File size (in bytes) for 256-color & greyscale images is: Vertical Pixels x Horizontal Pixels
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