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 | 6.5×9 |
| Size | 88.9 × 63.5mm |
| Diagonal | 109.2mm |
| Crop factor | 0.40× |
| Area | 5645mm² |
| Aspect ratio | 1.40 |
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