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  • Original price $50.00 USD - Original price $50.00 USD
    Original price
    $50.00 USD
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    Current price $50.00 USD

    QHYCCD Expansion Kit for QHY5III462C

    QHY-120001
    1 in stock

    This kit contains a methane filter, an AllSky lens and a lens adapter. It's made for the QHY5III462C camera only.

    Original price $50.00 USD - Original price $50.00 USD
    Original price
    $50.00 USD
    $50.00 USD - $50.00 USD
    Current price $50.00 USD
  • Original price $30.00 USD - Original price $30.00 USD
    Original price
    $30.00 USD
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    Current price $30.00 USD

    SBIG Filter Inserts 36mm to 1.25"

    DL-10105

    Individual inserts that allow the use of 1.25″ filters in threaded cells to be used instead of 36mm unmounted filters in the FW8-8300 and FW8S-Alum...

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    Original price $30.00 USD - Original price $30.00 USD
    Original price
    $30.00 USD
    $30.00 USD - $30.00 USD
    Current price $30.00 USD
  • Original price $25.00 USD - Original price $25.00 USD
    Original price
    $25.00 USD
    $25.00 USD - $25.00 USD
    Current price $25.00 USD

    SBIG Threaded 1.25" Filter Cell with Retainer for 1.1" Unmounted Filters

    DL-50045

    This is a 1.25″ screw-in filter cell for unmounted 1.1″ standard glass filters. The cell includes a retaining ring for holding the filter in place.

    Original price $25.00 USD - Original price $25.00 USD
    Original price
    $25.00 USD
    $25.00 USD - $25.00 USD
    Current price $25.00 USD
  • Original price $430.00 USD - Original price $430.00 USD
    Original price
    $430.00 USD
    $430.00 USD - $430.00 USD
    Current price $430.00 USD

    SharpStar 140PH 0.74x Focal Reducer

    SSO-140PHFR

    The new 3inch full frame reducer for 140PH APO is made of high quality metal, beautiful shape, the focal ratio is reduced from the original F6.5 to...

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    Original price $430.00 USD - Original price $430.00 USD
    Original price
    $430.00 USD
    $430.00 USD - $430.00 USD
    Current price $430.00 USD
  • Original price $99.00 USD - Original price $99.00 USD
    Original price
    $99.00 USD
    $99.00 USD - $99.00 USD
    Current price $99.00 USD

    SharpStar 50EDPH 0.84x Focal Reducer

    SSO-SHREDU50

    The 0.84x reducer can bring Sharpstar 50EDPH's focal ratio down to F4.6. This is a standard reducer with field flattening capabilities as well. A ...

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    Original price $99.00 USD - Original price $99.00 USD
    Original price
    $99.00 USD
    $99.00 USD - $99.00 USD
    Current price $99.00 USD
  • Original price $200.00 USD - Original price $200.00 USD
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    $200.00 USD
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    Current price $200.00 USD

    SharpStar 61EDPH 0.8x Focal Reducer

    SSO-SHRD61

    The dedicated full-frame reducer of SHARPSTAR 61EDPH, which meets the need of full-frame photography. The reducer is equipped with a 2.3" tube, one...

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    Original price $200.00 USD - Original price $200.00 USD
    Original price
    $200.00 USD
    $200.00 USD - $200.00 USD
    Current price $200.00 USD
  • Original price $260.00 USD - Original price $260.00 USD
    Original price
    $260.00 USD
    $260.00 USD - $260.00 USD
    Current price $260.00 USD

    SharpStar 76EDPH 0.8x Focal Reducer

    SSO-76EDPHFR

    SHARPSTAR 76EDPH F4.5 is the latest development in dedicated full-frame reducer, which meets the need of full-frame photography. The reducer is equ...

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    Original price $260.00 USD - Original price $260.00 USD
    Original price
    $260.00 USD
    $260.00 USD - $260.00 USD
    Current price $260.00 USD
  • Original price $319.00 USD - Original price $319.00 USD
    Original price
    $319.00 USD
    $319.00 USD - $319.00 USD
    Current price $319.00 USD

    SharpStar 94EDPH 0.8x Focal Reducer

    SSO-94EDPHFR
    1 in stock

    SHARPSTAR F4.4 Full Frame Focal Reducer made especially for 94EDPH refractor telescopes, it satisfy the demands of full-frame photography. The redu...

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    Original price $319.00 USD - Original price $319.00 USD
    Original price
    $319.00 USD
    $319.00 USD - $319.00 USD
    Current price $319.00 USD
  • Original price $120.00 USD - Original price $120.00 USD
    Original price
    $120.00 USD
    $120.00 USD - $120.00 USD
    Current price $120.00 USD

    SharpStar Field Flattener - 2"

    SSO-FF2

    Designed to fully illuminate APS-C sensor on most APO refractors. The SharpStar 2" field flattener has a M42x0.74 male thread to connect the camera...

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    Original price $120.00 USD - Original price $120.00 USD
    Original price
    $120.00 USD
    $120.00 USD - $120.00 USD
    Current price $120.00 USD
  • Original price $195.00 USD - Original price $195.00 USD
    Original price
    $195.00 USD
    $195.00 USD - $195.00 USD
    Current price $195.00 USD

    SharpStar Field Flattener - 2.5"

    SSO-FF25

    Designed to fully illuminate full frame sensor on most APO refractors. The SharpStar 2.5" field flattener has a M69 male thread to connect the came...

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    Original price $195.00 USD - Original price $195.00 USD
    Original price
    $195.00 USD
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    Current price $195.00 USD
  • Original price $270.00 USD - Original price $270.00 USD
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    $270.00 USD
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    Current price $270.00 USD

    SharpStar MPCC Full Frame Coma Corrector

    SSO-SH1XMPCC
    2 in stock

    Following the advent of 0.95x coma corrector for Newtonian reflector, SHARPSTAR optics has well received the favor of customers with high praise.A...

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    Original price $270.00 USD - Original price $270.00 USD
    Original price
    $270.00 USD
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    Current price $270.00 USD
  • Original price $500.00 USD
    Original price $500.00 USD - Original price $500.00 USD
    Original price $500.00 USD
    Current price $445.00 USD
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    Current price $445.00 USD

    Sky-Watcher Esprit 120 0.77x Reducer/Flattener

    SW-S20209
    2 in stock

    0.77x reducer for Esprit 120.

    Original price $500.00 USD
    Original price $500.00 USD - Original price $500.00 USD
    Original price $500.00 USD
    Current price $445.00 USD
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    Current price $445.00 USD
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  • Original price $500.00 USD
    Original price $500.00 USD - Original price $500.00 USD
    Original price $500.00 USD
    Current price $445.00 USD
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    Current price $445.00 USD

    Sky-Watcher Esprit 150 0.77x Reducer/Flattener

    SW-S20215

    0.77x reducer for Esprit 150.

    Original price $500.00 USD
    Original price $500.00 USD - Original price $500.00 USD
    Original price $500.00 USD
    Current price $445.00 USD
    $445.00 USD - $445.00 USD
    Current price $445.00 USD
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  • Original price $105.00 USD
    Original price $105.00 USD - Original price $105.00 USD
    Original price $105.00 USD
    Current price $90.00 USD
    $90.00 USD - $90.00 USD
    Current price $90.00 USD

    Sky-Watcher Evoguide 50ED Flattener

    SW-S20214
    1 in stock

    Compatible with Evoguide 50.

    Original price $105.00 USD
    Original price $105.00 USD - Original price $105.00 USD
    Original price $105.00 USD
    Current price $90.00 USD
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    Current price $90.00 USD
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  • Original price $385.00 USD
    Original price $385.00 USD - Original price $385.00 USD
    Original price $385.00 USD
    Current price $269.00 USD
    $269.00 USD - $269.00 USD
    Current price $269.00 USD

    Sky-Watcher Evolux 82ED 0.9x Reducer/Flattener

    SW-S20207

    0.9x thread-on reducer/corrector produces a flat field across the entire image while shortening exposure time by 24%. Optimized for Evolux 82mm re...

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    Original price $385.00 USD
    Original price $385.00 USD - Original price $385.00 USD
    Original price $385.00 USD
    Current price $269.00 USD
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    Current price $269.00 USD
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  • Original price $500.00 USD
    Original price $500.00 USD - Original price $500.00 USD
    Original price $500.00 USD
    Current price $445.00 USD
    $445.00 USD - $445.00 USD
    Current price $445.00 USD

    Sky-Watcher Evostar 150DX 0.77x Reducer/Flattener

    SW-S20208

    0.77x reducer for Evostar 150DX.

    Original price $500.00 USD
    Original price $500.00 USD - Original price $500.00 USD
    Original price $500.00 USD
    Current price $445.00 USD
    $445.00 USD - $445.00 USD
    Current price $445.00 USD
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  • Original price $415.00 USD
    Original price $415.00 USD - Original price $415.00 USD
    Original price $415.00 USD
    Current price $370.00 USD
    $370.00 USD - $370.00 USD
    Current price $370.00 USD

    Sky-Watcher Evostar 72ED 0.85x Reducer/Flattener

    SW-S20212

    Compatible with both APS-C and full frame sensors, APS-C (crop sensors) and smaller recommended M48x0.75 thread 55mm back focus Drops f/ratio from...

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    Original price $415.00 USD
    Original price $415.00 USD - Original price $415.00 USD
    Original price $415.00 USD
    Current price $370.00 USD
    $370.00 USD - $370.00 USD
    Current price $370.00 USD
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  • Original price $440.00 USD - Original price $440.00 USD
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    $440.00 USD
    $440.00 USD - $440.00 USD
    Current price $440.00 USD

    Sky-Watcher Quattro Coma Corrector

    SW-S20204

    Delivers stunning wide-field views with pinpoint stars to the edge of the field. Magnification remains unaltered.

    Original price $440.00 USD - Original price $440.00 USD
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    $440.00 USD
    $440.00 USD - $440.00 USD
    Current price $440.00 USD
  • Original price $380.00 USD - Original price $380.00 USD
    Original price $380.00 USD
    $380.00 USD
    $380.00 USD - $380.00 USD
    Current price $380.00 USD

    Sky-Watcher Reducer/Corrector (.85x) for Evostar 100

    SW-S20201

    0.85x Focal Reducer/Corrector for Sky-Watcher Evostar 100 ED APO is designed for serious Astro-Imagers. Optimized for the Sky-Watcher Evostar 100 E...

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    Original price $380.00 USD - Original price $380.00 USD
    Original price $380.00 USD
    $380.00 USD
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    Current price $380.00 USD
  • Original price $395.00 USD - Original price $395.00 USD
    Original price $395.00 USD
    $395.00 USD
    $395.00 USD - $395.00 USD
    Current price $395.00 USD

    Sky-Watcher Reducer/Corrector (.85x) for Evostar 120

    SW-S20202

    0.85x Focal Reducer/Corrector for Sky-Watcher Evostar 120 ED APO is designed for serious Astro-Imagers. Optimized for the Sky-Watcher Evostar 120 E...

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    Original price $395.00 USD - Original price $395.00 USD
    Original price $395.00 USD
    $395.00 USD
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    Current price $395.00 USD
  • Original price $370.00 USD - Original price $370.00 USD
    Original price $370.00 USD
    $370.00 USD
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    Current price $370.00 USD

    Sky-Watcher Reducer/Corrector (.85x) for Evostar 80

    SW-S20200

    0.85x Focal Reducer/Corrector for Sky-Watcher Evostar 80 ED APO is designed for serious Astro-Imagers. Optimized for the Sky-Watcher Evostar 80 ED ...

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    Original price $370.00 USD - Original price $370.00 USD
    Original price $370.00 USD
    $370.00 USD
    $370.00 USD - $370.00 USD
    Current price $370.00 USD
  • Original price $999.00 USD - Original price $1,128.00 USD
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    $999.00 USD - $1,128.00 USD
    $999.00 USD - $1,128.00 USD
    Current price $999.00 USD

    Starizona HyperStar V4 for Celestron 8"

    Options available
    2 variants in stock

    FeaturesThe HyperStar 8 lens converts a standard Celestron 8" SCT from f/10 to f/1.9, making the system 25 times faster. That means 25-times shorte...

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    Original price $999.00 USD - Original price $1,128.00 USD
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    $999.00 USD - $1,128.00 USD
    $999.00 USD - $1,128.00 USD
    Current price $999.00 USD
  • Original price $499.00 USD - Original price $499.00 USD
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    $499.00 USD
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    Current price $499.00 USD

    Starizona SCT Corrector LF - Large Format Reducer/Coma Corrector

    STZ-SCTCORR-LF

    Starizona's SCT Corrector has been an incredibly popular focal reducer and coma corrector, giving astrophotographers with standard Schmidt-Cassegra...

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    Original price $499.00 USD - Original price $499.00 USD
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    $499.00 USD
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    Current price $499.00 USD
  • Original price $300.00 USD - Original price $300.00 USD
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    $300.00 USD
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    Current price $300.00 USD

    Starlight Instruments Housing Only w/o SIPS Optics

    SI-SIPSHOUSING

    This is a complete housing without the SIPS optic. The housing can be used for astronomers that have more than 1 telescope and want to use the SIP...

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    Original price $300.00 USD - Original price $300.00 USD
    Original price
    $300.00 USD
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    Current price $300.00 USD