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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
5" LCD screen
Featuring a vivid blue carbon fiber wrap and a generous 70mm aperture
Item Number 510365
while the stable Twilight I alt-azimuth mount provides smooth
4 focal ratio is ideal for shorter exposure astrophotography
Nebula Filter H-Beta 1.25-inch 400-600 5" LCD screenExplore Scientific Nebula Filter 1. 25" H Beta Range from 478nm to 496nm with peak at 489nm. Transmission 94. 5% H Beta Hydrogen is the most abundant element in the universe and many nebulae glow in the light of H beta. This line filter blocks all other wavelengths (and thereby nearly all of the artificial light) and only the emission line of hydrogen beta will pass. This filter fits all standard 1. 25 inch eyepieces and filter wheels.
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