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Home > Articles > Other Articles > Equipment/Optics

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Considerations for Optimizing Newtonian Reflecting Telecope Optical Design
By John Lynch 10/6/2015
Amateur astronomers have a choice between instruments that are commercially available or becoming amateur telescope makers and building ones that are more suited to their needs. For the latter, the amateur has the freedom of instrument design as well as selection of specific components that represent the best available instead of compromising with what is provided with a commercially built unit.

Designing a Telescope Counterpoise System
By John Lynch 9/29/2013
Your telescope's static balance can be achieved even when using a wide range of oculars.

Versatility of the Texereau-design Foucault Test Apparatus
By John Lynch 7/1/2013
This telescope mirror shadow tester doubles as an artificial star test.

Comments on Eyepiece Edge of Field Brightening
By David Russell 6/27/2013
Many eyepieces that I have found to be excellent in most respects I ultimately sold in part or whole due to the eyepiece having EOFB. What is Edge of Field Brightening?

Understanding The Industry
By William Cook 5/10/2013
The things that matter and the things that don't.

By William Cook 4/18/2013
"What's the most powerful binocular you got?" and "How far can I see with it?" are two of the most common and least useful questions customers ask about binoculars. Why is that?

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