To use this interactive lens focal length estimator, enter your dimensions below, and click “Estimate” to view your approximate required focal length. This focal length estimator is presented to help the user determine the basic parameters of his optical system, and to estimate required focal length. These are not final dimensions but they do provide a good idea of the layout. Please contact Universe to obtain detailed dimensions and performance data, and to determine the precise optimal focal length and specifications for your project. Please call 516-624-2444 to talk to one of our applications engineers.
Magnification = Imager Size / Object Size
A Dimension = Object to Image Distance / Magnification + 1
B Dimension = A Dimension x Magnification
Focal Length = A Dimension x B Dimension / Object to Image Distance
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