Negative size is the dimensions of an image taken by a camera. It is different from film format as one film format can be used for various different negative sizes.
| Name | 1½x2¼" |
| Size | 60.0 × 40.0mm |
| Diagonal | 72.1mm |
| Crop factor | 0.60× |
| Area | 2400mm² |
| Aspect ratio | 1.50 |
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