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Optics Are ED (Extra-Low Dispersion) and EMD Coated - This scope yields crystal-clear results with it's Hoya FCD1 ED optics
An excellent choice for observations of supernova remnants and other nebulae that glow in OIII
and details begin to materialize that may not have become apparent to you at first glance
This is a controller cable for your Meade/Celestron/Orion/SkyWatcher telescopes
Orion Sirius
Astrozap Baader 338mm-348mm Solar Filter Price_$2250 - $2499 Optics Are ED (Extra-Low Dispersion)Astrozap Solar Filter With AstroSolar the Sun appears in neutral white. Other films and some glass filters produce a blurry bluish or reddish Solar image, thereby cutting part of the spectrum. Especially with an orange sun, it is very hard to see faculae regions which are visible predominantly in the blue wing of the spectrum. Due to it's neutral color balance, AstroSolar enables the use of various color (or interference) filters which allows the