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Astrophotography (82)
Binoculars and Telescopes (6)
Closeouts or "Scratch and Dent" (147)
Moisture & Dust Control, Lens Cleaning (38)
No Free Shipping (43)
Shop By Brand (496)
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Visual & Telescope Accessories (481)
Focus Masks (44)
Solar Viewing (3)
Binocular Accessories (13)
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49.7 mm dia. Unmounted Astrodon Johnson/Cousins Ic edge-blackened- Ic*_50R-200039 (2nd Quality Discount)
~~$500.00~~ $446.00
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49.7 mm dia. Unmounted Astrodon Johnson/Cousins Ic edge-blackened- Ic*_50R-200040 (2nd Quality Discount)
~~$500.00~~ $443.00
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49.7 x 49.7 mm square Unmounted Astrodon Johnson/Cousins UV edge-blackened-UV*_50S-200041 (2nd Quality Discount)
~~$550.00~~ $481.00
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49.7 x 49.7 mm square Unmounted Astrodon Johnson/Cousins V edge-blackened V*_50S-200045 (2nd Quality Discount)
~~$550.00~~ $491.00
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49.7 x 49.7 mm square Unmounted Astrodon Johnson/Cousins V edge-blackened V*_50S-200046 (2nd Quality Discount)
~~$550.00~~ $491.00
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49.7 x 49.7 mm square Unmounted Astrodon Johnson/Cousins V edge-blackened V*_50S-200047 (2nd Quality Discount)
~~$550.00~~ $484.00
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49.7 x 49.7 mm Unmounted Astrodon Johnson/Cousins Ic edge-blackened- Ic*_50S-200042 (2nd Quality Discount)
~~$550.00~~ $491.00
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49.7 x 49.7 mm Unmounted Astrodon Johnson/Cousins Ic edge-blackened- Ic*_50S-200043 (2nd Quality Discount)
~~$550.00~~ $481.00
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49.7 x 49.7 mm Unmounted Astrodon Johnson/Cousins Ic edge-blackened- Ic*_50S-200044 (2nd Quality Discount)
~~$550.00~~ $481.00
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5 nm Narrowband Filters – RedCon
$380.00 – $1,024.00
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APM 1.25 Inch Coma Corrector ED 2.7x Barlow Lens
$180.00
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APM 100mm 45 Degree ED APO Binocular
$3,035.00
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APM 100mm Binocular Solar Filter
$119.00
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APM 120mm 45 Degree SD APO Binocular
$4,349.00
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APM 120mm Deluxe Dovetail Rail
$54.00
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APM 150mm Deluxe Dovetail Rail
$56.00
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APM 15mm Ultra Flat Field Eyepiece
$130.00
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APM 18mm Ultra Flat Field Eyepiece
$130.00
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APM 2 Inch Coma Corrector Telecentric 1.5x Barlow Lens
$407.00
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APM 2 Inch Diagonal Mirror
$138.00
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APM 300mm Deluxe Dovetail Rail
$69.00
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APM 50mm Straight Through Finder Scope
$111.00
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APM 60mm 90 Degree Erect Image Finder Scope
$199.00
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APM 80mm 90 Degree Erect Image Finder Scope
$225.00
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APM M63 Riccardi Adjustment Flange
$85.00
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APM M82 Riccardi Adjustment Flange
$85.00
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APM MS 25×100 Waterproof Binocular
$746.00
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APM MS 7×50 ED APO Binocular
$393.00
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Astrodon 1.25″ Round 5nm Red Continuum Narrowband Filter, RedCon5_27R-200051 (2nd Quality Discount)
~~$380.00~~ $332.00
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Astrodon 1.25″ Round 5nm Red Continuum Narrowband Filter, RedCon5_27R-200052 (2nd Quality Discount)
~~$380.00~~ $294.00
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Astrodon 20 nm Filters – H-α 20nm (Close-Out)
$350.00 – $360.00
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Astrodon 3 nm Narrowband Filter, NII 50mm Round – NII3_50R-200049 (2nd Quality Discount)
~~$1,145.00~~ $1,016.00
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Astrodon 3 nm Narrowband Filters – H-α 3nm
$564.00 – $2,495.00
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Astrodon 3 nm Narrowband Filters – NII 3nm
$564.00 – $1,438.00
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Astrodon 3 nm Narrowband Filters – OIII 3nm
$564.00 – $2,495.00
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Astrodon 3 nm Narrowband Filters – SII 3nm
$564.00 – $2,495.00
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Astrodon 5 nm Narrowband Filter, 1.25 inch- OIII5_27R-200022 (2nd Quality Discount)
~~$380.00~~ $323.00
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Astrodon 5 nm Narrowband Filter, 1.25 inch, – HA5_27R-20004 (2nd Quality Discount)
~~$380.00~~ $237.00
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Astrodon 5 nm Narrowband Filter, 1.25 inch, – HA5_27R-20005 (2nd Quality Discount)
~~$380.00~~ $313.00
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Astrodon 5 nm Narrowband Filter, 1.25 inch, – HA5_27R-20006 (2nd Quality Discount)
~~$380.00~~ $313.00
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Astrodon 5 nm Narrowband Filter, 1.25 inch, – HA5_27R-20007 (2nd Quality Discount)
~~$380.00~~ $294.00
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Astrodon 5 nm Narrowband Filter, 1.25 inch, – HA5_27R-20008 (2nd Quality Discount)
~~$380.00~~ $331.00
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Astrodon 5 nm Narrowband Filter, 1.25″, SII5_27R-200014 (2nd Quality Discount)
~~$380.00~~ $323.00
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Astrodon 5 nm Narrowband Filter, 1.25″, – SII5_27R-200013 (2nd Quality Discount)
~~$380.00~~ $337.00
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Astrodon 5 nm Narrowband Filter, 31mm- OIII5_31R-200023 (2nd Quality Discount)
~~$390.00~~ $341.00
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Astrodon 5 nm Narrowband Filter, 31mm, SII5_31R-200015 (2nd Quality Discount)
~~$390.00~~ $331.00
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Astrodon 5 nm Narrowband Filter, 31mm, – HA5_31R-20001 (2nd Quality Discount)
~~$390.00~~ $346.00
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Astrodon 5 nm Narrowband Filter, 31mm, – HA5_31R-20002 (2nd Quality Discount)
~~$390.00~~ $331.00