OSI

580 products

580 products
Farpoint dovetail radius block for Meade 14-inch SCT telescope tube
Farpoint Dovetail Radius Block - Meade 14 Inch SCT
$79.20
JMI multi-use configurable 20-inch telescope carrying case, view 1 of 2
JMI multi-use configurable 20-inch telescope carrying case shown with diagonal and ETX setup
JMI Multi-use Telescope Carrying Case - Configurable 20 Inch
$398.20
Battery Pack Holder, standard size
$59.40
Farpoint FDUPS ball-head camera adapter, product view (7003424325785)
Farpoint FDUPS ball-head camera adapter, alternate angle (7003424325785)
Farpoint FDUPS Ball Head Camera Adapter
$163.90
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
$55.00
Lumicon 1.25 inch male to C-thread web cam and video adapter
Lumicon 1.25 Inch Male - C Thread Male Web Cam/Video Adapter
$24.20
Lumicon 2 inch multiple filter selector T-thread adapter
Lumicon 2 Inch Multiple Filter Selector T-Thread Adapter
$41.80
Sold Out
Lumicon 2-inch #56 green color filter for telescope eyepieces
Lumicon 2 Inch #56 Green Color Filter
$58.30
JMI low profile 2-inch focuser to 1.25-inch eyepiece adapter
JMI Low Profile 2 Inch Focuser to 1.25 Inch Eyepiece Adapter
$71.50
Sold Out
Lumicon 77mm Night Sky Hydrogen-alpha narrowband filter, view 1 of 2
Lumicon 77mm Night Sky Hydrogen-alpha narrowband filter, view 2 of 2
Lumicon 77mm Night Sky Hydrogen-α Filter
$388.30
Lumicon 2-inch filter selector adapter ring for Enhanced and LumiBrite star diagonals
Lumicon 2 Inch Filter Selector Adapter for Enhanced/LumiBrite Diagonals
$48.40
Lumicon 2-inch Easy Guider attachment ring with SCT male threads
Lumicon 2 Inch Easy Guider Attachment Ring - SCT Male
$104.50
Sold Out
JMI MotoFocus+ Orion StarMax 127
JMI MotoFocus+ Orion StarMax 127 components
JMI MotoFocus+ Orion StarMax 127
$240.90
Sold Out
JMI MotoFocus+ motor focuser drive for Celestron NexStar 11 GPS
JMI MotoFocus+ Celestron NexStar 11 GPS
$240.90
Sold Out
JMI MotoFocus+ Orion EON 130ED view 1 of 2
JMI MotoFocus+ Orion EON 130ED view 2 of 2
JMI MotoFocus+ Orion EON 130ED
$240.90
Farpoint Vixen side-by-side connecting bar, product view
Farpoint Vixen side-by-side connecting bar, alternate view
Farpoint Vixen Side by Side Connecting Bar
$60.50
Farpoint Carey focus mask for Meade 10-inch SN
Farpoint Carey focus mask for Meade 10-inch SN – paper template view
Farpoint Carey Focus Mask - Meade 10 Inch SN
$30.00
Farpoint Carey focus mask for Meade 8-inch SCT
Farpoint Carey focus mask for Meade 8-inch SCT – paper template view
Farpoint Carey Focus Mask - Meade 8 Inch SCT
$24.00
Farpoint Carey focus mask for 8.5-inch to 10.5-inch telescopes
Farpoint Carey focus mask grommet and screw mounting hardware
Farpoint Carey Focus Mask - 8.5 Inch to 10.5 Inch Telescopes
$29.00
Farpoint Special Edition Bat-inov focus mask, bat-shaped diffraction pattern
Farpoint Special Edition Bat-inov focus mask printable paper template
Farpoint Special Edition - Bat-inov Focus Mask
$27.00
Farpoint 90mm Vixen dovetail rings with dovetail bar, view 1 of 4
Farpoint 90mm Vixen dovetail rings with dovetail bar, view 2 of 4
Farpoint 90mm Vixen Dovetail Rings with Dovetail
$133.10
Farpoint Vixen dovetail plate with armored strip for Meade 7-inch Maksutov, view 1 of 4
Farpoint Vixen dovetail plate with armored strip for Meade 7-inch Maksutov, view 2 of 4
Farpoint Vixen Dovetail Plate - Armored Strip - Meade 7 Inch Mak
$115.50
Farpoint heavy-duty dovetail plate for Celestron 14-inch SCT, primary product view
Farpoint heavy-duty dovetail plate for Celestron 14-inch SCT, alternate angle
Farpoint Heavy-Duty Dovetail Plate - Celestron 14 Inch SCT
$363.00
Farpoint dovetail radius block for Meade 7-inch SCT telescope tube, product view 1
Farpoint dovetail radius block for Meade 7-inch SCT, product view 2
Farpoint Dovetail Radius Block - Meade 7 Inch SCT
$55.00