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Telescope magnification
f-number - Wikipedia
How to Calculate Telescope Magnification
Astro Tutorial #1.6: THE F-RATIO "fast" vs "slow" scopes - YouTube
Telescope Astronomy Physics - Notes
Light Vortex Astronomy - Article: How to Very Accurately Calculate your Telescope's Effective Focal Length
Light Vortex Astronomy - Article: How to Very Accurately Calculate your Telescope's Effective Focal Length
Bintel Astronomy Setup Calculator - Bintel
Optics Central - Telescope simulator - such a handy... | Facebook
f-number - Wikipedia
Telescope Focal Length: Everything You Need To Know
focal ratio - Society for Popular Astronomy
Aperture, focal length and focal ratio - Optics Trade Blog
Telescope Magnification - YouTube
Simple Formulas for the Telescope Owner - Sky & Telescope - Sky & Telescope
Two-mirror telescope aberrations
The Plate Scale of a Telescope
Telescope Equations: Magnification
Newtonian Telescope - Wolfram Demonstrations Project
Formulas - Telescope Magnification
Refractive Telescopes
Aperture Area Calculator
Telescope Magnification Calculator - Calculator Academy
How to Choose Your Telescope Magnification - Sky & Telescope - Sky & Telescope
Thiery Legault - How to adjust the focal length ?
Telescope Equations: Minimum Magnification
