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H-Alpha Photo Filter
*Greater than 90% transmission at 656nm
*12nm Bandpass @50% HBP
H-Alpha Filter Scan
Home
Products
Ultra Red Dot Scope
Telescopes
>
PlanetHunter Series
Binoculars
>
UltraLight Series
Passport Series
Floating Binocular Strap
Eyepieces
>
Ultra Monocentric
>
Ultra Monocentric Eyepieces Blog
Erfle Eyepieces
Symmetrical Eyepieces
Planetary Eyepieces
Accessories
>
Barlows
Filters
>
Variable Dielectric Color Filters & Accessories
CX4 Contrast
OIII Filter
Diagonals
>
CED
Binoviewer 1.9x OCA
MRF Bases
Cases
About Us
Contact Us
Astronomy Extras
Astro Images
STAR STUFF by Terry Alford
Product History Information
>
Telescopes from Our Past
Binoculars from Our Past
Downloads & Info