Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Optics
Magnification Calculator
Compute the optical magnification of a lens or mirror by comparing the image height to the object height. Use it to determine whether a lens enlarges, reduces, or inverts an object.
Fill in the required fields to see your result.
Optics
Depth of Field Calculator
Compute the total depth of field for any camera and lens combination using focal length, f-number, focus distance, and circle of confusion. Use it to plan sharp focus zones before a shoot.
Fill in the required fields to see your result.
Key differences
| Magnification Calculator | Depth of Field Calculator | |
|---|---|---|
| Category | Optics | Optics |
| Inputs required | 2 | 4 |
| Result | Magnification (×) | Depth of Field (mm) |
| What it does | Compute the optical magnification of a lens or mirror by comparing the image height to the object height. Use it to determine whether a lens enlarges, reduces, or inverts an object. | Compute the total depth of field for any camera and lens combination using focal length, f-number, focus distance, and circle of confusion. Use it to plan sharp focus zones before a shoot. |