Thin Lens Equation Calculator

Understand the thin lens equation calculator result

Thin Lens Equation Calculator is designed for checking introductory optics, camera geometry, and ray-diagram calculations. It asks for focal length, object distance and reports image distance and magnification. The thin-lens equation rearranges one over focal length equals one over object distance plus one over image distance. A focal length ten with object distance thirty gives image distance fifteen and magnification negative one half. By exposing image distance and magnification, Thin Lens Equation Calculator makes this specific arithmetic inspectable instead of presenting an unexplained number.

With the page defaults of Focal length 10, Object distance 30, the verified output is Image distance 15, Magnification -0.5. Use one consistent sign convention and distance unit when comparing with a textbook or instrument. In Thin Lens Equation Calculator, each labeled default remains visible while you edit, so you can change one assumption at a time and trace how image distance responds.

Method, limits, and private processing

Sign conventions vary, and real thick lenses have principal planes and aberrations not represented here. Thin Lens Equation Calculator evaluates the entered values entirely in your browser, without sending the inputs to a server. When using its image distance and magnification, retain the stated method and input units because this result is bounded by the assumptions of the thin-lens equation rearranges one over focal length equals one over object distance plus one over image distance.