**Basic
Lens/Mirrors**

The Basic Lens/Mirror calculations will figure the basic parameters of Lenses and Mirrors. One the bottom of the screen enter any value of Optical Density, Opacity and/or Transparency, Pressing the lower “Calculate” button will figure the other two conversions. “Clear will clear all values on the page.

For the Main Lens/Mirror calculation the users must input at least two inputs of the upper values f/, Diameter, Focal Length and/or f ratio. Pressing the upper “Calculate” button will compute the remainder of the values and the Min, Max and Best magnification of the system.

Use the Lens Image Tab Screen to figure the Image Scaling or Magnification of the lens. This uses the Primary to Secondary distance to ratio the image scale for the single lens. The Primary-Secondary magnification equation is performed differently on another screen.