Roger Cicala: Understanding field curvature for fun and profit (part 2): Digital Photography Review
Why Aperture is so Important in Astrophotography • PhotographingSpace.com
Amazon.com : Orion 10022 StarMax 90mm TableTop Maksutov-Cassegrain Telescope : Catadioptric Telescopes : Electronics
How to Use a Telescope | Beginner's Guide to Using a Telescope | High Point Scientific
Types of Telescopes. Pros, and Cons of Reflectors, Refractors, and Catadioptrics – Night Sky Gazing
Stops, Pupils, and Apertures
The benefits of telecentric systems / Baader Planetarium Blog Posts
What is Chromatic Aberration?
Hobby Killers: What Telescopes Not to Buy - Sky & Telescope - Sky & Telescope
The benefits of telecentric systems / Baader Planetarium Blog Posts
AAVSO Citizen Sky DSLR Photometry Workshop 07 August 2009 Presented by Hopkins Phoenix Observatory. - ppt download
Cassegrain reflector - Wikipedia
Benefits of a Bigger Aperture | Celestron
How to get sun rays in photos - Quora
Amazon.com: Astromania Anti-Vibration Suppression Pads Telescope Mounts - for Vibration-Free observing : Electronics
Aperture - Wikipedia
Do aperture stops work? - ATM, Optics and DIY Forum - Cloudy Nights
How to Choose A Telescope for Astronomy | Types of Telescopes - Sky & Telescope
Do aperture stops work? - ATM, Optics and DIY Forum - Cloudy Nights
Why and how to make a sub-aperture mask for a refractor | 10 Minute Astronomy
The Advantages and Disadvantages of Stopping Down a Lens – Sunex Inc.
Optical Aberrations: What Are They & How To Fix Them? - OpticalMechanics
The Quest for Clarity: Tracing Rays in 3 Telescope Designs | COMSOL Blog
