Projection Calculator Math

Basic Formula

slide size image size = slide distance image distance

1 focal length = 1 image distance + 1 slide distance


Derived Formula

slide size = image size × focal length image distance focal length

image size = slide size × ( image distance focal length 1 )

image distance = focal length × ( image size slide size + 1 )

focal length = slide size × image distance image size + slide size

This page was created in Amaya using MathML. We have added MathML display support using the W3C suggestions found at http://www.w3.org/Math/XSL/.

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