Take a "spacewalk" across the widest, sharpest apparent field...Concept: You may know there's a long history of naming eyepieces after their designers: Kellner, Erfle and Plossl, to name a few. In the late 70's I designed an eyepiece sufficiently ...
Nebula netter!Celestron's 2-inch Oxygen III narrowband filter is a must for viewing nebulae.Oxygen III filters transmit wavelengths from the two doubly ionized oxygen lines but block virtually all others. That gives increased detail and ...
If you know the Starlight Instruments Feather Touch focuser - then you dont need to read any explanation about it. You already know. In case you don't let us fill you in... Starlight Inistruments makes the worlds ...
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