Thin Lens Equation Calculator
Find Image Distance
Find Focal Length
Formula
1/f = 1/do + 1/di | m = -di/do
Frequently Asked Questions
What is the thin lens equation?
1/f = 1/do + 1/di, where f is focal length, do is object distance, di is image distance. Magnification m = -di/do. Positive di means real image (other side), negative means virtual (same side).
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