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Equipment/Optics

Considerations for Optimizing Newtonian Reflecting Telecope Optical Design

Posted by John Lynch 10/06/2015 12:00AM

Considerations for Optimizing Newtonian Reflecting Telecope Optical Design

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

Posted by John Lynch 09/29/2013 12:00AM

Designing a Telescope Counterpoise System

Your telescope's static balance can be achieved even when using a wide range of oculars.

Versatility of the Texereau-design Foucault Test Apparatus

Posted by John Lynch 07/01/2013 12:00AM

Versatility of the Texereau-design Foucault Test Apparatus

This telescope mirror shadow tester doubles as an artificial star test.

Comments on Eyepiece Edge of Field Brightening

Posted by David Russell 06/27/2013 12:00AM

Comments on Eyepiece Edge of Field Brightening

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

Posted by William Cook 05/10/2013 12:00AM

Understanding The Industry

The things that matter and the things that don't.

TWO TO DRAW TO

Posted by William Cook 04/18/2013 12:00AM

TWO TO DRAW TO

"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?