🔬 Lens Magnification Calculator
See how large your subject will be on your camera’s sensor.
Your Shot Details
Visualization (Optional)
Calculated Results
Magnification Ratio
–:–
Image Size on Sensor
APS-C Sensor (15.6mm)
— mm
Your 100cm object will be — mm tall on the sensor.
Disclaimer
This calculator uses the **thin lens equation** ($$M = f / (f – d_o)$$) as a theoretical approximation. Real-world results may differ slightly. This formula does not account for complex lens designs (which are not “thin”) or “focus breathing,” where the focal length changes slightly as you focus. It is intended for educational and planning purposes.