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Baader H-alpha / O-III / S-II Ultra-Narrowband (Narrowband) filter set - Premium Grade 3.5 / 4 nm half width (to harmonize the exposure time of H...

Astronomy’s Deep Space Mysteries calendar is back! The world's best-selling astronomy magazine brings you a calendar filled with stunning images, d...

"I can't find the Sun!" Sounds funny. However, the Sun is tricky to find in a properly filtered telescope, and you don't ever want to chance a dire...

M54-M48-2mm adapter is independently developed by ZWO and mainly used for connecting to 2”EFW and M54 filter drawer. 

The Antlia V-Series Luminance filter is available separately for use as a high-quality UV/IR filter. Highlight of LRGB-V Pro series set 1. Premium...

Baader H-alpha / O-III / S-II f / 2 Highspeed Filter Set - Precision Grade 6.5 nm FWHM, recommended for extremely fast optical systems from f /...

The ASI482MC is one of the latest OSC planetary cameras released by ZWO in 2021. Packed with Sony sensor IMX482, this camera has some very great hi...

Helps prevent dew formation on the Schmidt corrector lens Prevents off-axis glare from entering the optical system Rigid body with a velvet-lined...

1.  L-Pro 1.1 Introduction In suburban areas with weak light pollution, the color balance is good. The design of multi-band pass ensures excellent ...

Use this adapter to put a 2" male nosepiece onto the original (non-modular) Starizona Filter Slider to use on anything that accepts a 2" barrel.   ...

A Modern Guide to Planetary Imagingis a new DVD release from renowned planetary observer and astronomer Damian Peach. This DVD provides a wealth of...

Antlia SII EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD)5 on unwan...

A new generation - the world-first - galaxy and nebula booster filter intended for shooting not only nebulae, but also galaxies by the use of the t...

Askar MCP150 (Multi-Connection Plate 150) is a professional design especially for FRA600/5.6 astrograph. But it also works well with other various ...

Starizona M42 female threaded cap.

Standard visual back as included with Celestron SCTs. Adapts 1.25" accessories (such as diagonals, camera adapters, etc.) to the standard SCT threads.

Additional threaded 2.5-pound bottom counterweight for Starizona counterweight sets (for NexStar GPS and CPC telescopes). Necessary for heavy loads...

Antlia 3nm SII 671.6 - 2" Mounted Antlia 3nm Ha 656.3nm - 2" Mounted  Antlia 3nm OIII 500.7nm - 2" Mounted Application and Performance: High...

In daily astronomical shooting, the backfocus will have an influence. Astronomical photographers are often frustrated by the change of backfocus du...

Users are often racked by the task of choosing and matching dazzling filters as well as adapters when it comes to using a filter drawer. It just be...

Please Note: A T2 Tilter is included in the package but due to its large size it will be packed separately in another box, not in the camera box.  ...

D90 Holder Ring for ASI Cooled cameras Diameter: 90mm Currently compatible with ASI 2600MM/MC Pro and ASI6200MM/MC Pro cameras. To easily mount the...

100% Safe for Eclipse Viewing Lightweight and generally does not require rebalancing tube assembly. Stronger than any other solar filter film on t...

Accurate balance is necessary for the best telescope performance. Adding heavy accessories such as 2" eyepieces or cameras to a scope requires the ...