A tool utilized in photography and optics, this resource determines the relationship between image distance, object distance, and the characteristic measurement of a lens. For example, given the distance to a subject and the desired magnification, it can compute the required lens property to achieve the intended result.
This instrument streamlines the process of lens selection and experimental setup, eliminating tedious manual calculations and minimizing the risk of error. Historically, these computations were performed using mathematical formulas and tables, a process that demanded precision and was prone to mistakes. The development of this tool has greatly enhanced efficiency in various fields.