For Windows XP and Mac OS X

495USD BiotSavart L magnetic field calculator

695USD BiotSavart M magnetic field calculator - Including materials calculation module (under development)

LensForge icon

495USD LensForge - The premier lens design program for Mac OS X!


45USD 'topeScope Base - Basic solid model viewer for Mac OS X.

145USD 'topeScope Plus - Extended solid model viewer for Mac OS X.

Download demos from our download page.


Purchase the products using the secure Kagi store.

Or send us a purchase order.