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We are cleaning out our warehouse in preparation for the holiday season and want these new products out the door! Save BIG on a huge selection of astronomy & optical gear, from telescopes, eyepieces and imaging accessories to microscopes, binoculars & more while supplies last!

We have limited inventory on all of these clearance items, so don't delay, start shopping today.

Telescope Clearance

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  • Spectrum Full Aperture Glass Solar Filter for 257 mm - 264 mm Outside Diameter Telescopes - 266 mm ID
    Spectrum Telescope Spectrum Full Aperture Glass Solar Filter for 257 mm - 264 mm OD Telescopes - ST1050G
    $132.00 $105.60
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  • Spectrum Full Aperture Glass Solar Filter for 321 mm - 327 mm OD Telescopes
    Spectrum Telescope Spectrum Full Aperture Glass Solar Filter for 321 mm - 327 mm OD Telescopes - ST1300G
    $182.00 $145.60
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  • Spectrum Telescope Full Aperture Glass Solar Filter with 387 mm Inside Diameter
    Spectrum Telescope Spectrum Full Aperture Glass Solar Filter for 378 mm - 384 mm OD Telescopes - ST1525G
    $182.00 $145.60
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  • Spectrum Telescope Thread-On Solar Film Filter for 40.5 mm Camera Lens
    Spectrum Telescope Spectrum 40.5 mm Threaded Optical Solar Film Filter - ST-40.5MM
    $49.00 $39.20
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  • Spectrum Telescope Threaded Optical Solar Film Filter for 43 mm Camera Lens
    Spectrum Telescope Spectrum 43 mm Threaded Optical Solar Film Filter - ST-43MM
    $49.00 $39.20
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  • Spectrum Telescope Thread-On Solar Film Filter for 46 mm Camera Lens
    Spectrum Telescope Spectrum 46 mm Threaded Optical Solar Film Filter - ST-46MM
    $49.00 $39.20
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  • Spectrum 49 mm Threaded Camera Solar Film Filter
    Spectrum Telescope Spectrum 49 mm Threaded Optical Solar Film Filter - ST-49MM
    $49.00 $39.20
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    No free shipping.
  • Spectrum 52 mm Threaded Camera Solar Film Filter
    Spectrum Telescope Spectrum 52 mm Threaded Optical Solar Film Filter - ST-52MM
    $52.00 $41.60
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  • Spectrum Telescope Thread-On Solar Film Filter for 55 mm Camera Lenses
    Spectrum Telescope Spectrum 55 mm Threaded Optical Solar Film Filter - ST-55MM
    $52.00 $41.60
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  • Spectrum Threaded Optical Solar Film Filter - 67 mm
    Spectrum Telescope Spectrum 67 mm Threaded Optical Solar Film Filter - ST-67MM
    $55.00 $44.00
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  • Spectrum Thread-On Optical Solar Film Filter for 77 mm Camera Lens
    Spectrum Telescope Spectrum 77 mm Threaded Optical Solar Film Filter - ST-77MM
    $69.00 $55.20
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  • Spectrum Telescope 82 mm Thread-On Solar Film Filter
    Spectrum Telescope Spectrum 82 mm Threaded Optical Solar Film Filter - ST-82MM
    $69.00 $55.20
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    No free shipping.
  • Atik Cameras Atik 314L+ Color CCD Camera w/ Sony ICX285AL Sensor - ATK0059
    $1,395.00 $1,116.00
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    free shipping
  • Atik Cameras Atik EFW2 Electronic Filter Wheel - 7-Position, 36mm - ATK0086
    $554.00 $529.00
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    No free shipping.
  • Astrozap AstroZap Baader Solar Filter For 12" SCT and 338 mm - 348 mm Telescopes - AZ1008
    $150.00 $120.00
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  • Astrozap AstroZap Baader Solar Filter for 152 mm Models and 193 mm - 204 mm OD Telescopes - AZ1014
    $89.00 $71.20
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  • Astrozap Astrozap Flexible Dew Shield with Notch for 6" Meade ETX Light Switch - AZ120
    $35.95 $28.76
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    No free shipping.
  • Baader Planetarium Baader Planetarium 1.25" U-Filter - FUV-1
    $296.00 $236.80
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    free shipping
  • Baader 50.5 mm Round Unmounted UV-IR Cut/L Filter
    Baader Planetarium Baader UV-IR-Cut L Filter - 50.4 mm Round Unmounted - FUVIR-RD50
    $156.00 $124.80
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  • Baader Planetarium Winged Eyeshield for Hyperion & Aspheric Eyepieces
    Baader Planetarium Baader Planetarium Winged Eyeshield for Hyperion & Aspheric Eyepieces - HYP-WING
    $16.00 $12.80
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  • BAD-SPCR-SET Spacer Set
    Baader Planetarium Baader Planetarium Spacer Set for MPCC - SPCR-SET
    $83.00 $66.40
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  • Baader Planetarium Winged Eyeshield for Hyperion Zoom Mark III Eyepiece
    Baader Planetarium Baader Planetarium Winged Eyeshield for Hyperion Zoom Mark III Eyepiece - ZOOM-WING
    $16.00 $12.80
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  • Bob's Knobs Bob's Knobs Astro Tech Collimation Knobs - Secondary Mirror - AT10RC
    $25.95 $20.76
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    No free shipping.
  • Bob's Knobs Bob's Knobs Astro Tech AT12RC Collimation Knobs - Secondary Mirror - AT12RC
    $25.95 $20.76
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    No free shipping.
  • Bob's Knobs Bob's Knobs Celestron 14" SCT f/11 Collimation Knobs - Standard Phillips - C14STDPHI
    $20.95 $16.76
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    No free shipping.
  • Bob's Knobs Bob's Knobs Meade 16" SCT Collimation Knobs For 3-Screw Secondary - M16-3
    $25.95 $20.76
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    No free shipping.
  • Bob's Knobs Bob's Knobs Meade 8" SCT Widefield f/6.3 Collimation Knobs W/ Dust Cover Spacers - M8WF
    $25.95 $20.76
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    No free shipping.
  • Bob's Knobs Bob's Knobs Meade 12" Lightbridge Low Profile AZ Lock 3/8" - MLB12AZ2
    $9.95 $7.96
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    No free shipping.
  • Bob's Knobs Bob's Knobs Meade SNT 6" Collimation Knobs - Secondary Screws - MSN6SEC
    $20.95 $16.76
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    No free shipping.
  • Bob's Knobs Bob's Knobs Meade SNT 8" Collimation Knobs Secondary Screws - MSN8SEC
    $20.95 $16.76
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    No free shipping.
  • Celestron Celestron Travel Scope 50 Portable Refractor w/ Tripod and Case - 21038
    $59.95 $47.96
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    No free shipping.
  • Celestron Celestron PowerSeeker 60 EQ Refractor Telescope - 21043
    $99.95 $79.96
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    No free shipping.
  • Celestron Celestron Microscope Cover Slips - 100 piece box - 44418
    $2.95 $2.49
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    No free shipping.
  • Celestron Celestron Ultima 80mm 20-60X Angled Spotting Scope - 52250
    $229.95 $183.96
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    No free shipping.
  • Celestron Celestron Nature 10x25 Monocular - 71210
    $44.95 $39.96
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    No free shipping.
  • Celestron Celestron Granite ED 12 x 50 Binoculars - 71376
    $459.95 $367.96
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    free shipping
  • Celestron Celestron T-Adapter for SV60 Spotting Scope 93641
    $29.95 $23.00
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    No free shipping.
  • Coronado Coronado SolarMax 90 II Solar Telescope w/ 30 mm Blocking Filter and RichView Tuning - SMT90-30
    $4,499.00 $2,716.00
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    free shipping
  • Explore Scientific Replacement 152 mm Cradle Ring Set
    Explore Scientific Explore Scientific Replacement Cradle Ring Set for 152 mm Carbon Fiber APO - TED152CFCRDL
    $99.99 $79.99
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  • FarPoint Farpoint Dovetail Plate for Celestron C9.25 - D Series, Short - FDC925S
    $68.00 $54.40
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    No free shipping.
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