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DayStar Daystar ATM H-Alpha 0.7A Solar Filter (Pre-owned)

Daystar ATM H-Alpha 0.7A Solar Filter (Pre-owned)

Daystar ATM H-Alpha 0.7A Solar Filter (Pre-owned)

$3,000.00

Coronado Coronado 30mm Blocking Filter (Straight Through) 2" (pre-owned

Coronado 30mm Blocking Filter (Straight Through) 2" (pre-owned

Coronado 30mm Blocking Filter (Straight Through) 2" (pre-owned

$1,200.00

Tele Vue Tele Vue 1.25 Bandmate Mars Type B Filter

Tele Vue 1.25 Bandmate Mars Type B Filter

Tele Vue 1.25 Bandmate Mars Type B Filter

$175.00

Tele Vue Tele Vue 1.25 Bandmate Mars Type A Filter

Tele Vue 1.25 Bandmate Mars Type A Filter

Tele Vue 1.25 Bandmate Mars Type A Filter

$175.00

Hutech CLIP IDAS Nebula Clip Filter LPS-V4 - for Canon EOS DSLR -

Especially designed for DSLR and single-shot CCD colour cameras

Hutech CLIP IDAS Nebula Clip Filter LPS-V4 - for Canon EOS DSLR -

$159.99

Astronomik L-1 UV-IR Blocking EOS XL Full Frame Clip Filter

Astronomik has recently expanded their Luminance filter line to provide you with all the tools needed to gather the best possible data

Astronomik L-1 UV-IR Blocking EOS XL Full Frame Clip Filter

$139.95

Astrozap Flexi-Heat Dew Shield for 11” Schmidt-Cassegrain Telescopes

Astrozap Flexi-Heat Dew Shield for 11” Schmidt-Cassegrain Telescopes

Astrozap Flexi-Heat Dew Shield for 11” Schmidt-Cassegrain Telescopes

$128.90

Arcturus Arcturus NBPF Narrowband Hydrogen-Alpha 12nm Filter 2"

Get Great Nebula Images Under City Lights or a Full Moon with the Arcturus Hydrogen-Alpha Narrowband Astrophotography Filter!

Arcturus NBPF Narrowband Hydrogen-Alpha 12nm Filter 2"

$99.95

Arcturus Arcturus Hydrogen-Beta Filter 2"

A Hydrogen-Beta telescope filter may be the only way to see the faint and elusive Horsehead, California, and Cocoon Nebulas.

Arcturus Hydrogen-Beta Filter 2"

$99.95

$Glass Solar Filter (6 7/8 O.D.) fits Celestron CR6 or CR150HD Refractor$

Glass Solar Filter (6 7/8 O.D.) fits Celestron CR6 or CR150HD Refractor
Glass in very good condition

Glass Solar Filter (6 7/8 O.D.) fits Celestron CR6 or CR150HD Refractor

$69.99

Arcturus Arcturus NBPF Narrowband Hydrogen-Alpha 12nm Filter 1.25

Get Great Nebula Images Under City Lights or a Full Moon with the Arcturus Hydrogen-Alpha Narrowband Astrophotography Filter!

Arcturus NBPF Narrowband Hydrogen-Alpha 12nm Filter 1.25

$59.95

Arcturus Arcturus Hydrogen-Beta Filter 1.25

A Hydrogen-Beta telescope filter may be the only way to see the faint and elusive Horsehead, California, and Cocoon Nebulas.

Arcturus Hydrogen-Beta Filter 1.25

$59.95

Arcturus Arcturus UHC Narrowband Nebula Filter 1.25

The Arcturus Narrowband Nebula Filter uses the very latest in optical filtering techniques to produce a fine light pollution filter.

Arcturus UHC Narrowband Nebula Filter 1.25

$59.95

Baader Violet Multiband 1.25"

Baader Violet Multiband 1.25"

Baader Violet Multiband 1.25"

$59.00

The "Original" Astrocrumb Filter Slide (Pre-owned)

The "Original" Astrocrumb Filter Slide (Pre-owned)

The "Original" Astrocrumb Filter Slide (Pre-owned)

$59.00

Meade Meade Sky Filter Dust Seal 1A #07288 (Pre-owned)

Glass is clean. Threads have some wear markings but it still threads just fine

Meade Sky Filter Dust Seal 1A #07288 (Pre-owned)

$50.00

Broadband Light Pollution Filter 1.25"

Broadband Light Pollution Filter 1.25"

Broadband Light Pollution Filter 1.25"

$49.99

Celestron Celestron Eyepiece Filter Set

Celestron Eyepiece Filter Set

Celestron Eyepiece Filter Set

$49.95

Broadband Light Pollution Filter .965"

This item is new and has been kept in a hard case that is within a bag to keep out dust.

Broadband Light Pollution Filter .965"

$45.00

Unbranded OIII 2 Inch Light Pollution Filter (Pre-owned)

Unbranded OIII 2 Inch Light Pollution Filter (Pre-owned)

Unbranded OIII 2 Inch Light Pollution Filter (Pre-owned)

$39.99

Orion 1.25" Basic Set of Four Color Filters #05514 (Pre-owned)

Orion 1.25" Basic Set of Four Color Filters #05514 (Pre-owned)

Orion 1.25" Basic Set of Four Color Filters #05514 (Pre-owned)

$39.99

Hoya 2" Moon Filter (NDx2 - 50% Transmission)

Hoya 2" Moon Filter (NDx2 - 50% Transmission)

Hoya 2" Moon Filter (NDx2 - 50% Transmission)

$29.95

Tiffen 2" MOON Filter ND0.9 Filter (12.5% Transmission)

Tiffen 2" MOON Filter ND0.9 Filter (12.5% Transmission)

Tiffen 2" MOON Filter ND0.9 Filter (12.5% Transmission)

$29.95

Seymour Solar 9" X 12" Helios Solar Film Sheet

Seymour Solar 9" X 12" Helios Solar Film Sheet

Seymour Solar 9" X 12" Helios Solar Film Sheet

$19.95