Choosing the right lens for your ETC Source Four Ellipsoidal or Par

How to choose which lens to use for your application?  Here are two quick "Cheatsheets" that we made.  All measurements are in "feet".  Please keep in mind that these are close measurements, but not 100% exact.  The beam field size is the largest outer circle of the beam, and may change with lens tube focus.

Photometrics for ETC Source Four Ellipsoidal

Photometrics for ETC Source Four Par 

 *Please keep in mind that medium and wide lenses have different horizontal and vertical measurements*