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Pegasus Astro Photographic Filter - S2 2'' Mounted Photographic Filter Sulfur II (SII) filters are a narrow-band-filters for CCD/CMOS photography....

Pegasus Astro Photographic Filter - OIII 2'' Mounted Filter The Oxygen III (OIII) CCD 7nm filter is designed for nebula observation allowing 7nm b...

Pegasus Astro Photographic Filter - Ha 2'' Mounted Filter This narrowband filter has a 7nm bandwidth of light centered on a wavelength of 656nm th...

Lunt B3400 Blocking Filter BLOCKING FILTER ARE REQUIRED ON ALL LUNT SOLAR TELESCOPES The Lunt B3400 Blocking Filter is best for visual work on tele...

Lunt B600 Calcium K Module Calcium K (Ca-K) telescopes and filters are used to study the wavelength of 393.4 nm. This emission line is one of two t...

Lunt B1800 Calcium K Module Calcium K (Ca-K) telescopes and filters are used to study the wavelength of 393.4 nm. This emission line is one of two ...

Lunt B1200 Calcium K Module Calcium K (Ca-K) telescopes and filters are used to study the wavelength of 393.4 nm. This emission line is one of two ...

Lunt B600 Blocking Filter Which Blocking Filter to Choose The smallest recommended BF for a specific scope allows for the most inexpensive version ...

Lunt B1800 Blocking Filter Which Blocking Filter to Choose The smallest recommended BF for a specific scope allows for the most inexpensive version...

Pegasus Astro Dovetail Brackets for UPB V1 The Pegasus Astro Dovetail Brackets for UPB V1 allows you to install the Ultimate Powerbox V1 device ont...

Optolong SII 6.5nm Imaging Narrowband Filter Optolongimproved narrowband SII6.5nm filter (Sulful II for CCD) is designed for nebula observation all...

Optolong Night Sky H-Alpha filter Night Sky H-Alpha filter (IR Pass 650nm) with 50% transition from blocking to passing at about 640nm and 95% or a...

Lunt Polarizing Filter for White Light Wedges When doing visual work with Lunt White Light Wedges, we recommend adding a Lunt Polarizing Filter for...

Optolong Improved OIII 6.5nm Narrowband Filter Optolong improved extra Narrowband OIII-CCD 6.5nm filter is designed for nebula observation allowing...

Optolong NB Filters SHO 6.5nm Narrowband Filter Kit Optolong SHO6.5nm filter kit includes SII6.5nm, H-Alpha7nm, and OIII6.5nm narrow-band filters, ...

Optolong H-Alpha 7nm Narrowband Filter Optolong improved version of H-Alpha 7nm filter is the popular narrowband filter allowing 7nm bandwidth of l...

Optolong Clear Sky Filter Screw on Lens 1. Optolong Clear Sky Filter Introduction A screw on filter with the easiest installation way like UV fi...

Optec-DSI 3.5" Telescope Spacers High Performance 3.5″ Threaded Extension Rings Rich Simons of Deep Sky Instruments and Optec have jointly develope...

iOptron Vibration Suppression Pads Set of 3 Vibration Suppression Pads. For use with iOptron tripods or other tripods. Dimension Φ2.5" X 1" In the...

Optec Optional Second Stepper Board for Dual-Focus Control The standard FocusLynx Controller hub can easliy be converted into a Dual-Focus Controll...

Optec Optional External Temperature Probe Kit Though the QuickSync motors include an on-board temperature probe for measuring ambient temperature c...

Optec FocusLynx RJ45 to DB9 Converter for Robo-Focus motor The Optec FocusLynx RJ45 to DB9 Converter for Robo-Focus motors allows you to use a Robo...

Optec FocusLynx Mounting Bracket The #19691 Optec FocusLynx Universal Mounting Bracket screws directly to the back of the FocusLynx Control Hub bac...

Optec FocusLynx Dual-Focus Controller Optec’s FocusLynx Dual-Focus Controller has years of field experience with multiple connection methods.   Cap...

Optec Add-On Motor for Sagitta OAG Optec engineers designed the Sagitta OAG to provide a solution for remote imagers who require the ability to adj...

iOptron AccuAlignTM Polar Scope for CEM/SkyGuider/SkyTracker Serieses iOptron AccuAlign dark filed illuminated polar scope. To select a correct po...

iOptron Polar Scope for SmartEQ Bright field illuminated polar scope designed for the SmartEQ portable equatorial mount. In the Box iOptron Polar...

Losmandy V Series 4" Male to Male Dovetail Plate Losmandy V Series 4" Male to Male Dovetail Plate. For use of secondary equipment on equatorial mou...

Losmandy Short Counterweight Shaft The Losmandy Short Counterweight Shaft is used on lighter setups. For use on GM 8, G-9, G-11, G11GT. 8 inch leng...

Losmandy HD Tripod Foot The Losmandy HD Tripod Foot Set fits the HD Tripod adjustable tripod legs. 5" diameter for large surface contact. Dampens v...

iOptron iPolar Adapter iPolarTM electronic polar scope additional adapter. This adapter only fit an iPolar camera with USB port on the side (#3339)...

iOptron iGuide Autoguider System iOptron iGuide compact autoguider system consists of portable mini guiding scope with a diameter of 30mm and focal...

iOptron GPS Module for CEM26/GEM28/CEM40/GEM45 This 32-channel external GPS module is for CEM26/GEM28 mount. It is also a replacement module for CE...

iOptron Go2Nova Hand Controller The Go2Nova® #8409 hand controller is one of the major version hand controllers of iOptron’s revolutionary GOTONOVA...

iOptron Go2Nova Hand Controller The iOptron Go2Nova Hand Controller is an important part of iOptron’s revolutionary GOTONOVA® computerized control ...