Magnification Calculator — Formule
## Optical Magnification
Magnification describes the ratio of image size to object size.
### Formula
**M = -d_i / d_o = h_i / h_o**
Negative M means the image is inverted. |M| > 1 means the image is enlarged; |M| < 1 means it is reduced.
Magnification describes the ratio of image size to object size.
### Formula
**M = -d_i / d_o = h_i / h_o**
Negative M means the image is inverted. |M| > 1 means the image is enlarged; |M| < 1 means it is reduced.
Exemple Résolu
Image at 15 cm, object at 30 cm.
- M = -di / do
- M = -15 / 30
- M = -0.5
- The image is inverted and half the size of the object.