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This ED140 apochromatic (APO) refractor uses superior
8Å wavelength
Description ES 3" Dielectric-Coated Diagonal Mirror with 2" Adapter Item Number DD03-01CF Weight 2
Weighs 17lbs
Tilt it the minimum amount to eliminate fringes - too far and focus could be lost at the top and bottom of the image
Astrozap Baader 104mm-114mm Solar Filter Drawtube Extension This ED140 apochromatic (APO) refractorAstrozap 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
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