August 18, 2006, Newsletter Issue #27: Schmidt Cassegrain Telescopes
Tip of the Week
In the Schmidt-Cassegrain telescope the light enters the scope through a thin Schmidt correcting lens, then strikes the primary mirror, then is reflected back up the tube and intercepted by a small secondary mirror which reflects the light out an opening in the rear of the instrument where the image is formed at the eyepiece. They are lighter than Maksutov-Cassegrain models and tend to be less expensive than the Maksutovs. Schmidt-Cassegrains are more popular for astrophotography.
About LifeTips
Now one of the top on-line publishers in the world, LifeTips offers tips to millions of monthly visitors. Our mission mission is to make your life smarter, better, faster and wiser. Expert writers earn dough for what they know. And exclusive sponsors in each niche topic help us make-it-all happen.
| Guru Spotlight |
| Carma Spence-Pothitt |
