OSI

581 products

581 products
JMI carrying case for Celestron CGEM equatorial head, view 1 of 4
JMI carrying case for Celestron CGEM equatorial head, view 2 of 4
JMI Telescope Carrying Case - Celestron CGEM Equatorial Head
1/2" Speed Dial
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JMI ASCOM-compatible MotoFocus Deluxe for Meade SCT with hexagonal knob, motor and controller installation view (7009755529369)
JMI ASCOM-compatible MotoFocus Deluxe for Meade SCT with hexagonal knob, hand controller front view (7009755529369)
JMI ASCOM compatible MotoFocus Deluxe for Meade SCT's with Hexagonal Knob
JMI telescope carrying case for Celestron NexStar Evolution 8-inch scopes with removable fork arm, view 1 of 2 (6907312275609)
JMI telescope carrying case for Celestron NexStar Evolution 8-inch scopes with removable fork arm, view 2 of 2 (6907312275609)
JMI Telescope Carrying Case for Celestron New NexStar Evolution 8" scopes with removable fork arm
Farpoint Carey Focus Mask - Celestron 8, post-2008 C-8 scopes (6880158482585)
Farpoint Carey Focus Mask instruction sheet (6880158482585)
Farpoint Carey Focus Mask - Celestron 8, (all post 2008 C-8 scopes)
Lumicon female T-thread 2 inch female adapter view 1 of 2
Lumicon female T-thread 2 inch female adapter view 2 of 2
Lumicon Female T-Thread (T2 / M42×0.75) → 2" Eyepiece Holder — Adapter
JMI Combination 1.25 inch Eyepiece and T-Thread Adapter view 1 of 3
JMI Combination 1.25 inch Eyepiece and T-Thread Adapter view 2 of 3
JMI Combination 1.25-inch Eyepiece and T-Thread Adapter
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Lumicon 82mm Night Sky Hydrogen-alpha narrowband filter for deep sky observation
Lumicon 82mm Night Sky Hydrogen-α Filter
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JMI MotoFocus+ Explore Scientific Crayford Focuser - Config. 1 view 1 of 2
JMI MotoFocus+ Explore Scientific Crayford Focuser - Config. 1 view 2 of 2
JMI MotoFocus+ Explore Scientific Crayford Focuser - Config. 1
JMI EV focuser 2-inch drawtube
JMI EV Focuser 2 Inch Drawtube
JMI EV focuser base for Newtonian telescopes
JMI EV Focuser Base - Newtonian
JMI EV focuser base for Cassegrain telescopes
JMI EV Focuser Base - Cassegrain
Farpoint Carey focus mask for Celestron 11 Classic
Farpoint Carey focus mask for Celestron 11 Classic – paper template view
Farpoint Carey Focus Mask - Celestron 11 Classic
Farpoint 6-inch dovetail saddle for Takahashi telescope, view 1 of 3
Farpoint 6-inch dovetail saddle for Takahashi telescope, view 2 of 3
Farpoint 6 Inch Dovetail Saddle - Takahashi
Farpoint Far-Sight mounting screw for Barska binoculars
Farpoint Far-Sight Barska Binocular Mounting Screw
JMI Deluxe carry case for the Celestron AVX mount with wheels and extendable handle, product view
JMI Deluxe carry case for the Celestron AVX mount, alternate view
JMI Carry Case for Celestron AVX Mount, Deluxe (With wheels and Extendable Handle)
Farpoint Primary Mirror Center Marking Kit product photograph reused from Up to 12.5 inch canonical variant (gid://shopify/Product/6795870535833) displayed on LARGE 12 to 26 inch variant card
Farpoint Primary Mirror Center Marking Kit LARGE — 12" to 26"
Battery Pack XL
Lumicon 1.25-inch #29 Dark Red eyepiece color filter for lunar and planetary viewing
Lumicon 1.25 Inch #29 Dark Red Color Filter
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Lumicon 1.25-inch #23A Light Red eyepiece color filter for lunar and planetary viewing
Lumicon 1.25 Inch #23A Light Red Color Filter
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Lumicon 1.25-inch Lunar and Planetary Color Filter Set, Dark variant
Lumicon 1.25 Inch Lunar & Planetary Color Filter Set (Dark)
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Lumicon 58mm Night Sky Hydrogen-alpha narrowband filter, view 1 of 2
Lumicon 58mm Night Sky Hydrogen-alpha narrowband filter, view 2 of 2
Lumicon 58mm Night Sky Hydrogen-α Filter
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Farpoint 14-inch side-by-side tandem connecting bar view 1 of 3
Farpoint 14-inch side-by-side tandem connecting bar view 2 of 3
Farpoint 14 Inch Side by Side Tandem Connecting Bar
Farpoint dovetail radius block for Meade 14-inch SCT telescope tube
Farpoint Dovetail Radius Block - Meade 14 Inch SCT
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JMI multi-use carrying case for 11-inch OTA telescopes, view 1 of 4
JMI multi-use carrying case for 11-inch OTA telescopes, view 2 of 4
JMI Multi-use Telescope Carrying Case - 11 Inch OTAs
JMI carrying case for Meade LS-6 and LS-8 telescopes, closed view
JMI carrying case for Meade LS-6 and LS-8 telescopes, open showing interior
JMI Telescope Carrying Case - Meade LS-6/LS-8
JMI Event Horizon Pegasus FocusCube3 Robotic Telescope Focuser EVRP ASCOM Cassegrain Adaptation product photograph
1.25-inch T-thread adapter component
Event Horizon Pegasus FocusCube3 Robotic Telescope Focuser - EVRP - ASCOM- Cassegrain Adaptation
Farpoint dovetail ring screws, short 0.5 inch length, set of six
Farpoint dovetail ring screws, short 0.5 inch length
Farpoint Dovetail Ring Screws, Short .5" Length (Set of 6)
Battery Pack Holder, standard size
Farpoint FDA ball-head camera adapter, product view (7003423047833)
Farpoint FDA ball-head camera adapter mounted on a telescope (7003423047833)
Farpoint FDA Ball Head Camera Adapter
Farpoint clear Bahtinov focus mask, 85mm square (6928541319321)
Farpoint Bahtinov focus mask product line image
Farpoint Clear Bahtinov Focus Mask — 85mm Square
Farpoint Tri-Bahtinov focus mask for Celestron 14" RASA telescope
Farpoint Tri-Bahtinov focus mask diffraction pattern illustrating telescope collimation analysis
Farpoint Tri-Bahtinov Mask — Celestron 14" RASA
Lumicon 2 inch multiple filter selector T-thread view 1 of 4
Lumicon 2 inch multiple filter selector T-thread view 2 of 4
Lumicon 2 Inch Multiple Filter Selector - T-Thread
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Lumicon 1.25-inch single polarizing filter for telescope eyepiece glare reduction
Lumicon 1.25 Inch Single Polarizing Filter
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JMI MotoFocus+ Sky-Watcher Pro Refractors small knob
JMI MotoFocus+ Sky-Watcher Pro Refractors small knob drive detail
JMI MotoFocus+ Sky-Watcher Pro Refractors - small knob
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JMI MotoFocus+ Meade ETX view 1 of 3
JMI MotoFocus+ Meade ETX view 2 of 3
JMI MotoFocus+ Meade ETX
JMI EV focuser 2.5-inch drawtube
JMI EV Focuser 2.5 Inch Drawtube
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JMI counterweight carrying caddy for Celestron CGEM DX
JMI Counterweight Carrying Caddy - Celestron CGEM DX
Farpoint tripod knob kit, silver
Farpoint tripod knob kit, silver, close-up
Farpoint Tripod Knob Kit - Silver
Farpoint Carey focus mask for Celestron 9.25 Classic
Farpoint Carey focus mask for Celestron 9.25 Classic – paper template view
Farpoint Carey Focus Mask - Celestron 9.25 Classic