Filters List

Astrozap carries a comprehensive array of Explore Scientific filters to enhance the "seeing" of your telescope, including Solar, Moon, Polarizing, UHC, CLS, H-Alpha, H-Beta, Oxy III, Light Pollution and Neutral Density filters.
Baader Solar Filters
from $70.80

Baader Solar Filters

Astrozap

With AstroSolar™ the Sun appears in neutral white. Other films and some glass filters produce a blurry bluish or reddish Solar image, thereby cutt...

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from $70.80
Full Aperture - Glass Solar Filters
from $96.95

Full Aperture - Glass Solar Filters

Astrozap

Full Aperture Glass Solar Filters fit telescopes, finders and other optics as shown in the Size Matching Specifications below.    These are safe fu...

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from $96.95
Off Axis  - Glass Solar Filters
from $195.95

Off Axis - Glass Solar Filters

Astrozap

Off Axis Glass Solar Filters that fit telescopes as shown in the Size Matching Specifications below.    These are safe off axis solar telescope fil...

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from $195.95
Baader Solar Material
from $33.60

Baader Solar Material

Astrozap

Make your own! Baader Solar Material Size Choice: 177mm x 177mm (7" x 7") 250mm x 250mm (10" x 10") 250mm x 500mm (10" x 20") For visual use

from $33.60
Binocular - Glass Solar Filters
from $165.95

Binocular - Glass Solar Filters

Astrozap

These safe filters come in a pair for binoculars. See the Size Matching Specifications with picture below to order the correct size for your binocu...

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from $165.95
Nebula Filter UHC 2.0-inch - SKU# 310210
$139.99

Nebula Filter UHC 2.0-inch - SKU# 310210

Explore Scientific

Explore Scientific Nebula Filter 2.0" UHC Range from 458nm to 508nm with peak at 488nm. Transmission 96.7% UHC - This is an ultra-high contrast nar...

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$139.99
Nebula Filter CLS 2.0-inch - SKU# 310220
$119.99

Nebula Filter CLS 2.0-inch - SKU# 310220

Explore Scientific

Explore Scientific Nebula Filter 1.25" CLS Range from 436nm to 536nm with peak at 488nm. Transmission 98.3% This is a general-purpose light-polluti...

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$119.99
Nebula Filter H-Beta 1.25-inch - SKU# 310235
$129.99

Nebula Filter H-Beta 1.25-inch - SKU# 310235

Explore Scientific

Explore 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 abunda...

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$129.99
Nebula Filter H-Alpha 2-inch 12nm - SKU# 310130
$198.99

Nebula Filter H-Alpha 2-inch 12nm - SKU# 310130

Explore Scientific

High quality Explore Scientific H-Alpha filter Lets only the emission lines of hydrogen "through" Absorbs almost all of the artificial light More ...

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$198.99
Nebula Filter S-II 2-inch 6.5nm - SKU# 310120
$249.99

Nebula Filter S-II 2-inch 6.5nm - SKU# 310120

Explore Scientific

High quality Explore Scientific S-II filter Absorbs all other emission lines Absorbs almost all of the artificial light Passband bandwidth: 6.5nm...

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$249.99
Nebula Filter Oxygen III 2-inch 6.5nm - SKU# 310100
$249.99

Nebula Filter Oxygen III 2-inch 6.5nm - SKU# 310100

Explore Scientific

High quality Explore Scientific O-III filter Let only the oxygen emission lines "through" Absorbs all other emission lines Absorbs almost all of t...

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$249.99
Nebula Filter H-Alpha 1.25-inch 12nm - SKU# 310135
$158.99

Nebula Filter H-Alpha 1.25-inch 12nm - SKU# 310135

Explore Scientific

High quality Explore Scientific H-Alpha filter Lets only the emission lines of hydrogen "through" Absorbs almost all of the artificial light More ...

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$158.99
Nebula Filter Oxygen III 1.25-inch 6.5nm - SKU# 310105
$158.99

Nebula Filter Oxygen III 1.25-inch 6.5nm - SKU# 310105

Explore Scientific

High quality Explore Scientific O-III filter Let only the oxygen emission lines "through" Absorbs all other emission lines Absorbs almost all of t...

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$158.99
Explore Scientific 2" Variable Polarizing Filter - SKU# 310250
$169.99

Explore Scientific 2" Variable Polarizing Filter - SKU# 310250

Explore Scientific

Variable polarizing filter Individually adjustable image brightness Made from highly parallel optical glass Black anodized aluminum housing 2 "fil...

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$169.99
Nebula Filter H-Beta 2.0-inch - SKU# 310230
$179.99

Nebula Filter H-Beta 2.0-inch - SKU# 310230

Explore Scientific

Explore 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 abunda...

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$179.99