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PoleMaster with Cyclops Optics PM-ST Adapter + FREE Shipping + Free LensPen US$304.84 US$266.68

Now bundled with Cyclops Optics PM-ST Universal Portable Mount Adapter (US$49) at no extra cost for limited time period!  Polar alignment has never been this quick and accurate Accurate polar alignment in under 5...

PoleMaster with Cyclops Optics PM-SF Adapter (Fornax LighTrack II) US$304.84 US$266.68

Now bundled with Cyclops Optics PM-SF Universal Portable Mount Adapter (US$49) at no extra cost for limited time period!  Polar alignment has never been this quick and accurate Accurate polar alignment in under 5...

miniCAM5F US$695.42

-40ºC cooled CMOS camera with built in 9 filters wheel (free LRGB and anodised aluminium filters). Get all narrowband filters for only HK$1450 when you purchase with miniCAM5F. Including Ha, Hb, S-II, O-III and methane...

Optolong UHC Clip Filter for Canon DSLR US$94.42

Optolong UHC (Ultra High Contrast) is a light pollution filter for use in severely light polluted urban area. It selectively enhances emission from nebulas and suppresses the transmission of light pollution sources. UHC...

QHY10 + FREE Shipping US$1,720.05

Introduction QHY10 is a 10 Megapixels APS-C size one-shot-colour CCD camera with -40°C thermoelectric cooling. The smaller pixel size (6.05μm) allows you to achieve a higher sampling resolution than the QHY8's 7...

AstroTrac TT320X-AG with Free Polar Scope

Includes AstroTrac TT320X AutoGuiding Mount Polar Scope Arm Polar Scope (bundle promotion) Precision Motors DC Power Cord ST4 Autoguiding Cable Phenomenal Unguided Tracking Accuracy AstroTrac TT320X-AG allows you...

QHY16200A with FREE Custom Adapter US$4,389.44

Brand new 16MP APS-H mono CCD sensor co-developed by Onsemi and QHYCCD QHY16200 A is designed with amateur astronomers in mind. The 16MP APS-H sensor is a product of close collaboration between QHYCCD and Onsemi (previously...

QHY5P-II Colour + Free Shipping + Free LensPen US$239.89

Highest quantum efficiency 5 megapixels camera for under $250. Recommended for solar and lunar imaging.  Highlights: High pixel count — 5.0 Megapixels 3x higher sensitivity than last generation CMOS High...

Optolong L-Pro Clip Filter for Nikon D5100

Optolong L-Pro (L-Professional) is a multi-bandpass filter which selectively suppresses the transmission of light pollution lines. For example, mercury vapor lamps, high and low pressure sodium vapor lights and skyglow...

miniCAM5S US$521.88 US$470.84

miniCAM5S is enhanced with deep sky imaging capability based on the same sensor used on QHY5L-II. The camera is enhanced with long exposure capability and thermoelectric cooler that brings the sensor down to 45ºC below...

Cyclops Optics Gift Card US$0.13

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Optolong L-Pro Clip Filter for Nikon D7000/7100 US$253.92 US$178.64

Optolong L-Pro (L-Professional) is a multi-bandpass filter which selectively suppresses the transmission of light pollution lines. For example, mercury vapor lamps, high and low pressure sodium vapor lights and skyglow...

QHY8-Pro Grade 2 US$1,390.84

*Discontinued* QHY8-Pro Grade 2 is a 6 megapixels APS-C size one-shot-colour camera based on Sony's famous CCD ICX453AQ.  QHY8-Pro Grade 2 comes standard with the following features: Sealed CCD chamber purged with...

QHY5P-II Mono + Free Shipping + Free LensPen US$298.58

Highest quantum efficiency 5 megapixels camera for under $250. Recommended for solar and lunar imaging.  Highlights: High pixel count — 5.0 Megapixels 3x higher sensitivity than last generation CMOS High...

William Optics FLT-132

NEW 2021 version available here:  William Optics FLT-132 III Triplet APO with 3.3" R&P Focuser William Optics FLT-132 2021 with 3.5" Feather Touch & Rotolock 132mm f/7 apochromatic. The FLT-132 gathers 81%...