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Hotech 1.25" SCA Laser Collimator - Dot
Hotech$110.00Self-Centering Adapter (SCA) Provides Repeatable InstallationThe HoTech laser collimator separates itself from all other laser collimators with its...
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Hotech 14" HyperStar Laser Collimator
Hotech$575.00New! 14" HyperStar Laser Collimator Package includes:1 x Advanced CT Laser Collimator1 x 14" HyperStar reflector mirror adapter1 x High accuracy du...
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Hotech 2"/1.25" SCA Laser Collimator - Crosshair
Hotech$165.00Self-Centering Adapter (SCA) Provides Repeatable InstallationThe HoTech laser collimator separates itself from all other laser collimators with its...
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Hotech 2"/1.25" SCA Laser Collimator - Dot
Hotech$140.00Self-Centering Adapter (SCA) Provides Repeatable InstallationThe HoTech laser collimator separates itself from all other laser collimators with its...
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Hotech 9.25 & 11" HyperStar Laser Collimator
Hotech$560.00FeaturePackage includes:1 x Advanced CT Laser Collimator1 x HyperStar reflector mirror adapter for 9.25" and 11" model1 x High accuracy dual-sided ...
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Hotech Advanced CT Collimator for 1.25" Focuser
Hotech$499.00Innovation brings Affortable and Portable Collimation into RealitySince the invention of the Cassegrain Telescope in 1672 by the French sculptor Si...
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Hotech Advanced CT Collimator for 2" Focuser
Hotech$499.00Innovation brings Affortable and Portable Collimation into RealitySince the invention of the Cassegrain Telescope in 1672 by the French sculptor Si...
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Hotech Laser Collimator for 8" SCT w/HyperStar Lens
Hotech$545.00Collimates 8" Schmidt-Cassegrain Telescopes with HyperStar Lens installed. Package Includes: Advanced CT Laser Collimator 8" HyperStar Reflector M...
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Hotech SCA Field Flattener
Hotech$175.00High Quality Optics Designed for Refractor Telescopes This field flattener is fully multi-coated on two-element lens allowing the most efficient li...
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Hotech SCA T-Adapter - 1.25"
Hotech$50.00Announcing the Self-Centering Camera T-Adapter for Astrophotographers.The Self-Centering Adapter (SCA) mechanism provides repeatable and reliable c...
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Hotech SCA T-Adapter - 2"
Hotech$60.002" SCA T-Adapter center and square loads perfectly in your visual back and provides a secure adaption for the best imaging result Announcing the S...
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Hubble Space Telescope
Nasa$1.00This is a website test product. If you buy this product, your credit card will be billed for the full price of $1,499,999,999.95, plus applicable t...
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Hummingbird 9-27X56MM Angled Zoom Micro Spotting Scope
Celestron$229.95World’s first micro spotting scope—fits easily in your vest/coat pocket, cargo pants, or shoulder bag 9-27x magnification range Comfortable 45° vi...
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Hummingbird Fast Action Pan Tilt Head Tripod
Celestron$109.95A stable-yet-lightweight, versatile, and easy-to-use tripod perfect for just about any application Smoothly pan the horizon or tilt the viewing an...
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Hyperion 12.5" f/8 Astrograph
Starizona$13,000.00Shown with optional Astro-Physics 1200GTO equatorial mount, Apogee Alta U16M, Astrodon MonsterMOAG, and SBIG ST-402ME Starizona has developed an as...
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Hyperion 16" f/7.3 Astrograph
Starizona$20,000.00Starizona has developed an astrographic telescope that will deliver the largest, highest quality field of view on the market. With a 70mm diffracti...
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Hyperion Focal Reducer
Starizona$1,195.00Second-generation design optimized for new-style Hyperion 12.5" and 16" models. Available now. The optical design of the Hyperion focal reducer has...
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15% OFF Summer SaleHyperStar 11 v4
Starizonafrom $1,104.00Dr. David H. Levy on HyperStar How to Install Your HyperStar HyperStar Promo Video The HyperStar 11 replaces the seconda...
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15% OFF Summer SaleHyperStar 14 v4
Starizonafrom $1,189.00Dr. David H. Levy on HyperStar How to Install Your HyperStar HyperStar Promo Video The HyperStar 14 replaces the seconda...
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HyperStar 2-Piece Bahtinov Mask
Starizonafrom $29.95Our 2-piece Bahtinov focusing mask is easy to install with a HyperStar and camera in place, even with camera cables in the way. The two halves sna...
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15% OFF Summer SaleHyperStar 6 v4
Starizonafrom $424.00Dr. David H. Levy on HyperStar How to Install Your HyperStar HyperStar Promo Video The HyperStar 6 replaces the secondar...
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15% OFF Summer SaleHyperStar 8 v4
Starizonafrom $849.00Dr. David H. Levy on HyperStar How to Install Your HyperStar HyperStar Promo Video The HyperStar 8 replaces the secondar...
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15% OFF Summer SaleHyperStar 9.25
Starizonafrom $1,019.00Dr. David H. Levy on HyperStar How to Install Your HyperStar HyperStar Promo Video The HyperStar 9.25 works with any Fas...
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HyperStar Adapter Top Replacement
Starizona$40.00The only purpose of this adapter is to replace the top of an already existing HyperStar adapter to change its thread type. An example of this is i...
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In Stock
HyperStar Cable Router
Starizona$19.95Eliminate diffraction spikes from power and USB cables with a curved cable router! Designed to clamp onto a ZWO camera body, these routers guide c...
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15% OFF Summer SaleHyperStar Camera Adapter
Starizonafrom $54.00Important things to know about HyperStar adapters: DSLR adapters will not work with the Filter Slider Filter Slider Adapters do not come with a St...
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HyperStar Conversion Kit - C11 - Gasket
Starizona$15.00Sorbothane gasket used in HyperStar conversion kit for Celestron 11" SCTs. Useful for retrofitting a factory-installed Fastar secondary assembly so...
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HyperStar Conversion Kit - C14 - Gasket
Starizona$15.00Sorbothane gasket used in HyperStar conversion kit for Celestron 14" SCTs. Useful for retrofitting a factory-installed Fastar secondary assembly so...
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In Stock
HyperStar Conversion Kit - C6 - Gasket
Starizona$12.00Sorbothane gasket used in HyperStar conversion kit for Celestron 6" SCTs. Useful for retrofitting a factory-installed Fastar secondary assembly so ...
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In Stock
HyperStar Conversion Kit - C8 - Gasket
Starizona$12.00Sorbothane gasket used in HyperStar conversion kit for Celestron 8" SCTs. Useful for retrofitting a factory-installed Fastar secondary assembly so ...
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HyperStar Conversion Kit - C9.25 - Gasket
Starizona$15.00Sorbothane gasket used in HyperStar conversion kit for Celestron 9.25" SCTs. Useful for retrofitting a factory-installed Fastar secondary assembly ...
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HyperStar Conversion Kit - Celestron 11" SCT
Starizona$300.00This kit allows a non-HyperStar-compatible SCT to be converted into a compatible telescope. The kit includes three components that replace the orig...
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HyperStar Conversion Kit - Celestron 14" SCT
Starizonafrom $350.00This kit allows a non-HyperStar-compatible SCT to be converted into a compatible telescope. The kit includes three components that replace the orig...
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HyperStar Conversion Kit - Celestron 8" SCT
Starizona$250.00This kit allows a non-HyperStar-compatible SCT to be converted into a compatible telescope. The kit includes three components that replace the orig...
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HyperStar Counterweight
Starizona$75.00This is the standard stainless steel counterweight for use with HyperStar lenses on fork-mounted telescopes (also known as Alt/Az mounts). The wei...
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In Stock
HyperStar EdgeHD Adapter Ring - C11
Starizona$90.00This adapter ring will convert a standard HyperStar C11 into an HD version to work on an EdgeHD telescope. It simply threads into the existing bot...
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In Stock
HyperStar EdgeHD Adapter Ring - C14
Starizona$90.00This adapter ring will convert a standard HyperStar C14 into an HD version to work on an EdgeHD telescope. It simply threads into the existing...
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In Stock
HyperStar EdgeHD Adapter Ring - C8
Starizona$90.00This adapter ring will convert a standard HyperStar C8 into an HD version to work on an EdgeHD telescope. It simply threads into the existing bott...
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IDAS DTD (dusk to dawn) 2" Mounted (M48) Filter
IDAS$218.00Galaxy and Nebula booster plus Comet enhancing filter A new generation filter covering multiple objects including comets, galaxies, the Milky Way, ...
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IDAS DTD (dusk to dawn) 52mm Mounted (M52) Filter
IDAS$248.00Galaxy and Nebula booster plus Comet enhancing filter A new generation filter covering multiple objects including comets, galaxies, the Milky Way, ...
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In Stock
IDAS GNB Galaxy & Nebula Booster Narrowband Imaging Filter 1.25" Mounted (M28.6)
IDAS$150.00A new generation - the world-first - galaxy and nebula booster filter intended for shooting not only nebulae, but also galaxies by the use of the t...
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In Stock
IDAS GNB Galaxy & Nebula Booster Narrowband Imaging Filter 2" Mounted (M48)
IDAS$248.00A new generation - the world-first - galaxy and nebula booster filter intended for shooting not only nebulae, but also galaxies by the use of the t...
View full details$248.00In Stock -
In Stock
IDAS HEUIB-II H-a Enhancement Filter with UV/IR Cut 2" Mounted (M48)
IDAS$175.00A filter for enchanced H-alpha nebula observations with UV/near IR suppressiong function - especially removing red end spectrum interference. The H...
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IDAS NB1 Nebula Contrast Boost Filter - 48mm (2")
IDAS$175.00IDAS NB1 Filter is designed to enhance the contrast of emission nebula, yet accommodate the filter spectral shift* when used with modern fast optic...
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In Stock
IDAS NB3-PM Nebula Booster OIII and SII 2" Mounted Filter (M48)
IDAS$137.50IDAS NB3-PM: PM stands for Passband Modification Nebula Booster NB3-PM filter for OIII and SII the NB3, OIII and SII emission lines respectively. ...
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IDAS NBZ II Nebula Booster - 2" Mounted Filter
IDAS$298.00The IDAS NBZ-II is a dual band nebula booster filter - the successor to the NBZ (UHS) filter. The FWHM of the NBZ-II is 8nm (+/=0.4nm) at ...
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IDAS NGS1 Filter - 48mm (2") Mounted
IDAS$175.00IDAS NGS1 filters (previously LPS-D3) enhance the contrast of astronomical emission nebulae against a sky with both man-made and natural* sky glo...
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In Stock
iEXOS-100 Azimuth Adjuster Adapter
Explore Scientific$59.99The Azimuth Adjuster Adapter is designed for use on the Twilight Medium Duty or Twilight Heavy Duty tripods. This adapter also works with the Lig...
View full details$59.99In Stock