Telescope magnification
Binoculars Magnification Explained - How Do Binoculars Magnify?
Telescope Equations: Magnification
Simple Formulas for the Telescope Owner - Sky & Telescope - Sky & Telescope
Telescope Magnification Calculator
Telescopes and Microscopes
Telescope Magnification Calculator - Calculator Academy
Refractive Telescopes
Cassegrain formulas.
Telescope, CCD and Eyepiece Calculator - Deep Sky Watch
Magnification of a Lens Calculator
Telescope Equations: Minimum Magnification
2.9: Microscopes and Telescopes - Physics LibreTexts
Refractive Telescopes
Newtonian Reflecting Telescope Designer
Telescope Equations: Magnification
Formulas - Telescope Magnification
Optics for Astronomy
Telescope, CCD and Eyepiece Calculator - Deep Sky Watch
Lowest and highest useful magnification - Optics Trade Blog
Two-mirror telescopes: Cassegrain, Gregorian and variants
