Optical Accessories
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Original price $50.00 USD - Original price $50.00 USDOriginal price$50.00 USD$50.00 USD - $50.00 USDCurrent price $50.00 USD| /
QHYCCD Expansion Kit for QHY5III462C
QHY-1200011 in stockThis 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 USDOriginal price$50.00 USD$50.00 USD - $50.00 USDCurrent price $50.00 USD| / -
Original price $30.00 USD - Original price $30.00 USDOriginal price$30.00 USD$30.00 USD - $30.00 USDCurrent price $30.00 USD| /
SBIG Filter Inserts 36mm to 1.25"
DL-10105Individual 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...
View full detailsOriginal price $30.00 USD - Original price $30.00 USDOriginal price$30.00 USD$30.00 USD - $30.00 USDCurrent price $30.00 USD| / -
Original price $25.00 USD - Original price $25.00 USDOriginal price$25.00 USD$25.00 USD - $25.00 USDCurrent price $25.00 USD| /
SBIG Threaded 1.25" Filter Cell with Retainer for 1.1" Unmounted Filters
DL-50045This 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 USDOriginal price$25.00 USD$25.00 USD - $25.00 USDCurrent price $25.00 USD| / -
Original price $430.00 USD - Original price $430.00 USDOriginal price$430.00 USD$430.00 USD - $430.00 USDCurrent price $430.00 USD| /
SharpStar 140PH 0.74x Focal Reducer
SSO-140PHFRThe 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...
View full detailsOriginal price $430.00 USD - Original price $430.00 USDOriginal price$430.00 USD$430.00 USD - $430.00 USDCurrent price $430.00 USD| / -
Original price $99.00 USD - Original price $99.00 USDOriginal price$99.00 USD$99.00 USD - $99.00 USDCurrent price $99.00 USD| /
SharpStar 50EDPH 0.84x Focal Reducer
SSO-SHREDU50The 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 ...
View full detailsOriginal price $99.00 USD - Original price $99.00 USDOriginal price$99.00 USD$99.00 USD - $99.00 USDCurrent price $99.00 USD| / -
Original price $200.00 USD - Original price $200.00 USDOriginal price$200.00 USD$200.00 USD - $200.00 USDCurrent price $200.00 USD| /
SharpStar 61EDPH 0.8x Focal Reducer
SSO-SHRD61The 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...
View full detailsOriginal price $200.00 USD - Original price $200.00 USDOriginal price$200.00 USD$200.00 USD - $200.00 USDCurrent price $200.00 USD| / -
Original price $260.00 USD - Original price $260.00 USDOriginal price$260.00 USD$260.00 USD - $260.00 USDCurrent price $260.00 USD| /
SharpStar 76EDPH 0.8x Focal Reducer
SSO-76EDPHFRSHARPSTAR 76EDPH F4.5 is the latest development in dedicated full-frame reducer, which meets the need of full-frame photography. The reducer is equ...
View full detailsOriginal price $260.00 USD - Original price $260.00 USDOriginal price$260.00 USD$260.00 USD - $260.00 USDCurrent price $260.00 USD| / -
Original price $319.00 USD - Original price $319.00 USDOriginal price$319.00 USD$319.00 USD - $319.00 USDCurrent price $319.00 USD| /
SharpStar 94EDPH 0.8x Focal Reducer
SSO-94EDPHFR1 in stockSHARPSTAR F4.4 Full Frame Focal Reducer made especially for 94EDPH refractor telescopes, it satisfy the demands of full-frame photography. The redu...
View full detailsOriginal price $319.00 USD - Original price $319.00 USDOriginal price$319.00 USD$319.00 USD - $319.00 USDCurrent price $319.00 USD| / -
Original price $120.00 USD - Original price $120.00 USDOriginal price$120.00 USD$120.00 USD - $120.00 USDCurrent price $120.00 USD| /
SharpStar Field Flattener - 2"
SSO-FF2Designed 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...
View full detailsOriginal price $120.00 USD - Original price $120.00 USDOriginal price$120.00 USD$120.00 USD - $120.00 USDCurrent price $120.00 USD| / -
Original price $195.00 USD - Original price $195.00 USDOriginal price$195.00 USD$195.00 USD - $195.00 USDCurrent price $195.00 USD| /
SharpStar Field Flattener - 2.5"
SSO-FF25Designed 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...
View full detailsOriginal price $195.00 USD - Original price $195.00 USDOriginal price$195.00 USD$195.00 USD - $195.00 USDCurrent price $195.00 USD| / -
Original price $270.00 USD - Original price $270.00 USDOriginal price$270.00 USD$270.00 USD - $270.00 USDCurrent price $270.00 USD| /
SharpStar MPCC Full Frame Coma Corrector
SSO-SH1XMPCC2 in stockFollowing the advent of 0.95x coma corrector for Newtonian reflector, SHARPSTAR optics has well received the favor of customers with high praise.A...
View full detailsOriginal price $270.00 USD - Original price $270.00 USDOriginal price$270.00 USD$270.00 USD - $270.00 USDCurrent price $270.00 USD| / -
Original price $500.00 USDOriginal price $500.00 USD - Original price $500.00 USDOriginal price $500.00 USDCurrent price $445.00 USD$445.00 USD - $445.00 USDCurrent price $445.00 USD| /
Sky-Watcher Esprit 120 0.77x Reducer/Flattener
SW-S202092 in stock0.77x reducer for Esprit 120.
Original price $500.00 USDOriginal price $500.00 USD - Original price $500.00 USDOriginal price $500.00 USDCurrent price $445.00 USD$445.00 USD - $445.00 USDCurrent price $445.00 USD| /Save 11% Save % -
Original price $500.00 USDOriginal price $500.00 USD - Original price $500.00 USDOriginal price $500.00 USDCurrent price $445.00 USD$445.00 USD - $445.00 USDCurrent price $445.00 USD| /
Sky-Watcher Esprit 150 0.77x Reducer/Flattener
SW-S202150.77x reducer for Esprit 150.
Original price $500.00 USDOriginal price $500.00 USD - Original price $500.00 USDOriginal price $500.00 USDCurrent price $445.00 USD$445.00 USD - $445.00 USDCurrent price $445.00 USD| /Save 11% Save % -
Original price $105.00 USDOriginal price $105.00 USD - Original price $105.00 USDOriginal price $105.00 USDCurrent price $90.00 USD$90.00 USD - $90.00 USDCurrent price $90.00 USD| /
Sky-Watcher Evoguide 50ED Flattener
SW-S202141 in stockCompatible with Evoguide 50.
Original price $105.00 USDOriginal price $105.00 USD - Original price $105.00 USDOriginal price $105.00 USDCurrent price $90.00 USD$90.00 USD - $90.00 USDCurrent price $90.00 USD| /Save 14% Save % -
Original price $385.00 USDOriginal price $385.00 USD - Original price $385.00 USDOriginal price $385.00 USDCurrent price $269.00 USD$269.00 USD - $269.00 USDCurrent price $269.00 USD| /
Sky-Watcher Evolux 82ED 0.9x Reducer/Flattener
SW-S202070.9x thread-on reducer/corrector produces a flat field across the entire image while shortening exposure time by 24%. Optimized for Evolux 82mm re...
View full detailsOriginal price $385.00 USDOriginal price $385.00 USD - Original price $385.00 USDOriginal price $385.00 USDCurrent price $269.00 USD$269.00 USD - $269.00 USDCurrent price $269.00 USD| /Sold out -
Original price $500.00 USDOriginal price $500.00 USD - Original price $500.00 USDOriginal price $500.00 USDCurrent price $445.00 USD$445.00 USD - $445.00 USDCurrent price $445.00 USD| /
Sky-Watcher Evostar 150DX 0.77x Reducer/Flattener
SW-S202080.77x reducer for Evostar 150DX.
Original price $500.00 USDOriginal price $500.00 USD - Original price $500.00 USDOriginal price $500.00 USDCurrent price $445.00 USD$445.00 USD - $445.00 USDCurrent price $445.00 USD| /Save 11% Save % -
Original price $415.00 USDOriginal price $415.00 USD - Original price $415.00 USDOriginal price $415.00 USDCurrent price $370.00 USD$370.00 USD - $370.00 USDCurrent price $370.00 USD| /
Sky-Watcher Evostar 72ED 0.85x Reducer/Flattener
SW-S20212Compatible 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...
View full detailsOriginal price $415.00 USDOriginal price $415.00 USD - Original price $415.00 USDOriginal price $415.00 USDCurrent price $370.00 USD$370.00 USD - $370.00 USDCurrent price $370.00 USD| /Save 11% Save % -
Original price $440.00 USD - Original price $440.00 USDOriginal price$440.00 USD$440.00 USD - $440.00 USDCurrent price $440.00 USD| /
Sky-Watcher Quattro Coma Corrector
SW-S20204Delivers 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 USDOriginal price$440.00 USD$440.00 USD - $440.00 USDCurrent price $440.00 USD| / -
Original price $380.00 USD - Original price $380.00 USDOriginal price $380.00 USD$380.00 USD$380.00 USD - $380.00 USDCurrent price $380.00 USD| /
Sky-Watcher Reducer/Corrector (.85x) for Evostar 100
SW-S202010.85x Focal Reducer/Corrector for Sky-Watcher Evostar 100 ED APO is designed for serious Astro-Imagers. Optimized for the Sky-Watcher Evostar 100 E...
View full detailsOriginal price $380.00 USD - Original price $380.00 USDOriginal price $380.00 USD$380.00 USD$380.00 USD - $380.00 USDCurrent price $380.00 USD| / -
Original price $395.00 USD - Original price $395.00 USDOriginal price $395.00 USD$395.00 USD$395.00 USD - $395.00 USDCurrent price $395.00 USD| /
Sky-Watcher Reducer/Corrector (.85x) for Evostar 120
SW-S202020.85x Focal Reducer/Corrector for Sky-Watcher Evostar 120 ED APO is designed for serious Astro-Imagers. Optimized for the Sky-Watcher Evostar 120 E...
View full detailsOriginal price $395.00 USD - Original price $395.00 USDOriginal price $395.00 USD$395.00 USD$395.00 USD - $395.00 USDCurrent price $395.00 USD| / -
Original price $370.00 USD - Original price $370.00 USDOriginal price $370.00 USD$370.00 USD$370.00 USD - $370.00 USDCurrent price $370.00 USD| /
Sky-Watcher Reducer/Corrector (.85x) for Evostar 80
SW-S202000.85x Focal Reducer/Corrector for Sky-Watcher Evostar 80 ED APO is designed for serious Astro-Imagers. Optimized for the Sky-Watcher Evostar 80 ED ...
View full detailsOriginal price $370.00 USD - Original price $370.00 USDOriginal price $370.00 USD$370.00 USD$370.00 USD - $370.00 USDCurrent price $370.00 USD| / -
Original price $999.00 USD - Original price $1,128.00 USDOriginal price$999.00 USD - $1,128.00 USD$999.00 USD - $1,128.00 USDCurrent price $999.00 USD| /
Starizona HyperStar V4 for Celestron 8"
Options available2 variants in stockFeaturesThe 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...
View full detailsOriginal price $999.00 USD - Original price $1,128.00 USDOriginal price$999.00 USD - $1,128.00 USD$999.00 USD - $1,128.00 USDCurrent price $999.00 USD| / -
Original price $499.00 USD - Original price $499.00 USDOriginal price$499.00 USD$499.00 USD - $499.00 USDCurrent price $499.00 USD| /
Starizona SCT Corrector LF - Large Format Reducer/Coma Corrector
STZ-SCTCORR-LFStarizona's SCT Corrector has been an incredibly popular focal reducer and coma corrector, giving astrophotographers with standard Schmidt-Cassegra...
View full detailsOriginal price $499.00 USD - Original price $499.00 USDOriginal price$499.00 USD$499.00 USD - $499.00 USDCurrent price $499.00 USD| / -
Original price $300.00 USD - Original price $300.00 USDOriginal price$300.00 USD$300.00 USD - $300.00 USDCurrent price $300.00 USD| /
Starlight Instruments Housing Only w/o SIPS Optics
SI-SIPSHOUSINGThis 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...
View full detailsOriginal price $300.00 USD - Original price $300.00 USDOriginal price$300.00 USD$300.00 USD - $300.00 USDCurrent price $300.00 USD| /