HEATKEYS

OpTaliX: Optical design, thin film and illumination software

Physics software, specializing in optical, electrostatic, and magnetostatic calculations

Nearly every optical engineering endeavor can benefit from the use of optical design and analysis products developed by Optica Software. Such endeavors include optimization, lasers and resonators, non-sequential calculations, stray-light analysis, t...

Help build the most comprehensive human-reviewed directory of the web

A site for people who think. Intellectual resources, programming, astronomy, science, mathematics, Java applets, HTML instruction, home of Arachnophilia.

SourceForge.net. Fast, secure and free downloads from the largest Open Source applications and software directory

ZEMAX is powerful, accurate and affordable software for all aspects of optical system design

Reviews and free software downloads for Windows, Mac, Palm, Pocket PC, and Mobile Phones. The best programs and games. Buy software directly online.

The source for over 1000 of the best astronomy and space related links from around the world including astrophotography, telescope making, software, planets, nebula, comets, asteroids, space flight, astronauts and much more!

Digital photo gallery database with camera and lens search. Canon digital camera photo forum, Exhibit Engine PHP photo gallery program.

Flickr is almost certainly the best online photo management and sharing application in the world. Show off your favorite photos and videos to the world, securely and privately show content to your friends and family, or blog the photos and videos you...