Sky-watcher SynScan kit for Dobson 8" (SW-4254)
Sky-watcher SynScan kit for Dobson 8" (SW-4254)
1098.53 $
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This long-awaited kit allows you to upgrade a standard Dobsonian telescope to a fully functional GoTo system. The core of the kit is the SynScan controller, also found in the popular HEQ5 and EQ6 mounts, which can locate any of over 30,000 celestial objects. The system automatically tracks objects, greatly simplifying observation with a Dobsonian telescope. The GoTo Upgrade Kit is supplied as new base plates for the Dobsonian mount, with motors pre-installed. 
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Sky-watcher SynScan kit for Dobson 16" (SW-4258)
Sky-watcher SynScan kit for Dobson 16" (SW-4258)
2105.79 $
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This long-awaited kit allows you to upgrade a popular Dobsonian telescope with a full GoTo system. At the heart of the kit is the SynScan controller, well known from the HEQ5 and EQ6 mounts. This controller can locate any of over 30,000 celestial objects and automatically track them, making observation with a Dobsonian telescope much easier. The GoTo Upgrade Kit consists of new base plates for the Dobsonian mount, with motors already installed. The kit includes all parts needed for self-assembly, such as special optical tube clamps, motor housings, screws, wiring, and the GoTo controller.
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Leica Ever-ready case for APO-Televid 65 Angled (Neoprene, brown/black) 42339
Leica Ever-ready case for APO-Televid 65 Angled (Neoprene, brown/black) 42339
305.02 $
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This durable and hardwearing neoprene ever-ready case with shoulder straps is designed to protect your APO-Televid 65 W from weather and impacts, ensuring it stays safe at all times. The practical design features a smart closing system with dedicated openings for the front lens, eyepiece, focusing barrel, and tripod mount. This allows you to use the spotting scope immediately without removing it from the case, and you can carry it over your shoulder even while it is mounted on a tripod.
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ADM Guide scope rings 125mm (67980)
ADM Guide scope rings 125mm (67980)
318.52 $
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If you want to install a guide telescope alongside your main telescope, guide rings are the simplest and most affordable solution. The PLUS 115mm guide rings provide high build quality and all the essential features for this application, making it possible to mount guide telescopes such as 80mm diameter refractors. These rings fit Losmandy-style saddles. The set includes two 125mm adjustable guide scope rings, each equipped with large Delrin-tipped thumb screws.  
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ADM Dual Prism clamp for iOptron HEM27 (85654)
ADM Dual Prism clamp for iOptron HEM27 (85654)
322.41 $
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This dual prism clamp, combined with an adapter plate, allows you to replace the standard saddle plate on the iOptron HEM27 mount. It creates a solid mounting option for both Vixen and Losmandy rails. The design features a large knob and a sturdy clamp that grips the entire side surface of the rail, providing excellent stability and a secure feel.
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Altair Astro Guidescope MG32 (68605)
Altair Astro Guidescope MG32 (68605)
233.01 $
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The Altair MG32 mini guide scope is a compact, high-quality optical tube designed for use with the sensitive GPCAMv2 AR0130 monocular camera for direct connection, as well as most other small guide cameras with a C or CS thread at the front (CS adaptor included). Altair cameras fit directly without the need for the CS adaptor. To use, simply remove the front black connector marked "CS" from your camera and screw it onto the back of the MG32 Miniguider, so the purple part of the camera is in contact with the red rear section of the MG32.
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Antlia Filters Quad Band Anti-Light Pollution 2'' (85445)
Antlia Filters Quad Band Anti-Light Pollution 2'' (85445)
469.5 $
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The Antlia Quad Band Anti-Light Pollution Filter is designed to suppress unwanted light and enhance astrophotography results for both color and monochrome cameras. This filter allows you to capture most deep sky objects, such as galaxies, reflection nebulae, emission nebulae, and star clusters, even in highly light-polluted areas ranging from Bortle 8 to Bortle 1 skies. Its spectral transmission covers the visible light region as well as the near-ultraviolet (NUV) and near-infrared (NIR) bands.
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Antlia Filters Edge OIII 4.5nm 1,25" (85537)
Antlia Filters Edge OIII 4.5nm 1,25" (85537)
335.37 $
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The Antlia OIII EDGE narrowband filter is designed for a 4.5 nm bandwidth, offering outstanding transmission and optimized performance for astrophotography. This filter delivers a high signal-to-noise ratio and enhanced contrast, allowing you to capture finer details in faint OIII nebula structures. The Antlia OIII 4.5nm EDGE filter provides 85% transmission at the 500.7 nm wavelength, maximizing your ability to detect even the faintest nebulae. 
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Antlia Filters H-Beta - OIII 1,25" (85528)
Antlia Filters H-Beta - OIII 1,25" (85528)
292.63 $
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The Antlia HB-OIII filter features an almost complete optical density (OD4) coating at key wavelengths, with a cut-off range of 300-1000 nm. This design meets the spectral requirements of astronomical cameras and offers enhanced suppression of the infrared range. Compared to standard visual filters, which typically have an OD3 cut-off from 350-750 nm, this filter more effectively darkens the sky background, making it easier to observe and photograph deep sky objects such as nebulae, star clusters, and galaxies.
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Astro-Physics Reducer 0.67x 2" (51284)
Astro-Physics Reducer 0.67x 2" (51284)
380.68 $
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The Astro Physics Tele Compressor was originally designed for telescopes with a focal ratio of f/9 or higher, but practical use has shown that it also works exceptionally well with GSO’s RC telescopes. It delivers sharp star images across a 29 mm diameter field. When used with an SLR camera, the required spacing can be achieved using a TS Optics 2"/T2 focal adapter, providing the standard 55 mm distance to the camera sensor needed for DSLRs with a T2 ring.
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Astronomik Filters H-alpha 12nm 50mm (62750)
Astronomik Filters H-alpha 12nm 50mm (62750)
413.06 $
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The H-alpha filter transmits light at a wavelength of 656 nm, making it an excellent choice for narrowband H-alpha astrophotography. It delivers high-contrast images and reveals rich nebular details, even in areas with strong light pollution. These 50 mm filters are compatible with all 50 mm filter wheels from ZWO, QHY, QSI, Starlight Xpress, SBIG, Moravian, and Atik. The filter design includes a protective ring and blackened edges to prevent stray light, provide mechanical protection, and make handling easier. 
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Astronomik Filters HSO 12nm 1,25" (85948)
Astronomik Filters HSO 12nm 1,25" (85948)
464.85 $
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H-alpha Filter: This filter is designed for photographing hydrogen nebulae both in areas with artificial light pollution and at dark-sky locations. It significantly enhances the contrast between H-alpha emitting objects and the sky background. With a narrow half-width of 12 nm and high transmission close to 100% in the H-alpha line, it provides much greater contrast than broadband filters. The 12 nm half-width is optimized for typical CCD and CMOS sensors.
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Astronomik Filters HSO 12nm 2" (85949)
Astronomik Filters HSO 12nm 2" (85949)
982.79 $
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H-alpha Filter: This filter is designed for photographing hydrogen nebulae, whether you are in areas with artificial light pollution or under dark skies. It significantly boosts the contrast between H-alpha emitting objects and the sky background. With its narrow 12 nm half-width and nearly 100% transmission at the H-alpha line, this filter provides a much greater contrast increase than broadband filters. The 12 nm half-width is ideally suited for typical CCD and CMOS sensors.
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Astronomik Filters HSO 12nm 31mm (85950)
Astronomik Filters HSO 12nm 31mm (85950)
568.43 $
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H-alpha Filter: This filter is designed for photographing hydrogen nebulae, whether you are in areas with artificial light pollution or under dark skies. It significantly enhances the contrast between H-alpha emitting objects and the background sky. Thanks to its narrow 12 nm half-width and almost 100% transmission at the H-alpha line, this filter provides much greater contrast than broadband filters. The 12 nm half-width is specifically optimized for use with typical CCD and CMOS sensors.
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Astronomik Filters HSO 12nm 36mm (85951)
Astronomik Filters HSO 12nm 36mm (85951)
646.13 $
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H-alpha Filter: This filter is ideal for photographing hydrogen nebulae, whether you are in areas with strong artificial light pollution or under dark skies. It greatly enhances the contrast between objects that emit H-alpha light and the background sky. With its narrow 12 nm half-width and nearly 100% transmission at the H-alpha wavelength, this filter achieves significantly higher contrast than broadband filters. The 12 nm half-width is perfectly suited for typical CCD and CMOS sensors.
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Astronomik Filters HSO 12nm 50mm (85952)
Astronomik Filters HSO 12nm 50mm (85952)
1034.59 $
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H-alpha Filter: This filter is ideal for photographing hydrogen nebulae from both light-polluted areas and dark sky locations. It greatly enhances the contrast between objects glowing in H-alpha light and the sky background. With a narrow 12 nm half-width and nearly 100% transmission at the H-alpha wavelength, this filter offers significantly greater contrast than broadband filters. The 12 nm half-width is optimized for use with typical CCD and CMOS sensors.
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Astronomik Filters HSO 6nm 1.25" (85953)
Astronomik Filters HSO 6nm 1.25" (85953)
646.13 $
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H-alpha Filter: This filter is designed for photographing hydrogen nebulae from both light-polluted areas and dark sky locations. It greatly increases the contrast between objects that emit H-alpha light and the background sky. SII Filter: The SII filter is suitable for imaging sulfur emission regions, whether you are in areas with strong light pollution or under dark skies. It enhances the contrast between objects glowing in the sulfur line at 672 nm and the sky background.
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Astronomik Filters HSO 6nm 2" (85954)
Astronomik Filters HSO 6nm 2" (85954)
1500.73 $
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H-alpha Filter: This filter is ideal for photographing hydrogen nebulae, whether you are working in light-polluted areas or under dark skies. It significantly enhances the contrast between objects that emit H-alpha light and the background sky. SII Filter: The SII filter is suitable for imaging sulfur emission regions from both light-polluted locations and dark-sky sites. It greatly increases the contrast between objects glowing in the sulfur line at 672 nm and the sky background.
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Astronomik Filters HSO 6nm 31mm (85955)
Astronomik Filters HSO 6nm 31mm (85955)
775.62 $
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H-alpha Filter: This filter is perfect for photographing hydrogen nebulae, whether you are in light-polluted areas or under dark skies. It greatly enhances the contrast between objects that emit H-alpha light and the background sky. SII Filter: The SII filter is designed for imaging sulfur emission regions, both from light-polluted locations and dark-sky sites. It dramatically increases the contrast between objects glowing in the sulfur line at 672 nm and the sky background.
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Astronomik Filters HSO 6nm 36mm (85956)
Astronomik Filters HSO 6nm 36mm (85956)
969.85 $
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H-alpha Filter: This filter is ideal for photographing hydrogen nebulae, whether you are working in light-polluted areas or under dark skies. It significantly enhances the contrast between objects that emit H-alpha light and the background sky. SII Filter: The SII filter is designed for capturing sulfur emission regions, suitable for both light-polluted locations and dark-sky sites. It dramatically increases the contrast between objects glowing in the sulfur line at 672 nm and the sky background.
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Astronomik Filters HSO 6nm 50mm (85957)
Astronomik Filters HSO 6nm 50mm (85957)
1500.73 $
Tax included
H-alpha Filter: This filter is designed for photographing hydrogen nebulae in both light-polluted environments and dark-sky locations. It greatly enhances the contrast between objects that emit H-alpha light and the surrounding sky background. SII Filter: The SII filter is ideal for capturing sulfur emission regions, whether you are shooting from light-polluted areas or dark skies. It significantly increases the contrast between objects glowing in the sulfur line at 672 nm and the sky background.
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Astronomik Filters CLS CCD XT Clip Sony alpha 7 (85677)
Astronomik Filters CLS CCD XT Clip Sony alpha 7 (85677)
362.72 $
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Astronomik XT filters enable you to capture sharp, beautiful star images right into the corners of the frame, even with extremely wide-angle lenses. With other Astronomik filters, image quality in the corners can be limited at short focal lengths. Although these filters use a glass plate only one millimetre thick, this thickness can cause aberrations with certain wide-angle lenses, stretching stars into lines. Astronomik XT filters are built on an ultra-thin substrate, just 0.3 millimetres thick. This thinness minimizes “star streaks” in the corners. 
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