What is the Thin Lens Calculator?
Uses the lens equation 1/f = 1/dₒ + 1/dᵢ (real-is-positive convention). Enter any two of focal length, object distance and image distance to get the third, the magnification and whether the image is real or virtual, upright or inverted, enlarged or reduced.
How to use the Thin Lens Calculator
- Choose the unknown.
- Enter the other two (use negative focal length for a diverging lens or convex mirror).
What does negative image distance mean?
The image is virtual – on the same side as the object, and it cannot be caught on a screen.
This Thin Lens Calculator is 100% free, needs no signup and runs privately in your browser – on phone, tablet or computer.
Last updated: · By NodifyTech