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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
The five level indicator shows power availability
Featuring K9 Porro prism optics and multi-coated lenses
double-lens ED refractors or even achromatic lenses
The longest focal length in the 52° Series with the longest eye relief
A convenient 2-point attachment point allows you to hang the battery near your equipment
Nebula Filter H-Beta 1.25-inch Series_82° LER The five level indicator showsExplore 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.
US$ 89.00
US$ 89.00
US$ 89.00
US$ 89.00
US$ 89.00
US$ 89.00
US$ 89.00
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