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ZWO Electronic Filter Wheel (2025 Edition)- 5x1.25" Refined Design with Anti Light-Leak Protection The next-generation ZWO EFW series introduces an...

Made from anodized aluminum.

Helps to obtain the correct backfocus for your viewing needs. Made for use with 2-inch (50.8mm) telescope eyepieces with M48 mounted filter threads...

The ideal storage and transport solution for a wide range of tripods and their accessory trays with internal straps for a secure fit. Ultra-durabl...

Askar MCP90 (Multi-Connection Plate 90) is a professional design especially for FRA400/5.6 astrograph. But it also works well with other various ha...

This adapter ring will convert a standard HyperStar C14 into an HD version to work on an EdgeHD telescope.  It simply threads into the existing...

This bracket allows easy mounting of the ZWO EAF autofocus motor to an Airy Disk triplet refractor.  Tested to work with 85, 96, 106 and 140mm mode...

Aluminum dew shield fits Celestron 6" SCTs with HyperStar Celestron 6 SCT & Hyperstar Dew Shield 12" in total length Top, bottom and side notc...

Imagine a world without light. What would it be like? Dark, cold, and lifeless! In Explore Light and Optics! With 25 Great Projects, readers ages 7...

Note that this version of the counterweight set will not work with the CPC-1100 telescopeTo achieve true dynamic balance with a fork-mounted SCT, b...

  Optolong L-Pro clip filter for Canon EOS full frame cameras! The L-Pro is designed to improve the visibility of various deepsky objects. By selec...

Upgrade your Seestar setup with the TC20 Carbon Fiber Tripod, a lightweight, sturdy, and adjustable tripod—perfect for a Seestar S30 or Seestar S30...

Get this must-have guide for Arizona, featuring full-color photographs and information to help you identify rocks and minerals. Identify and colle...

What do you see when you look up into the sky at night? The moon, stars, maybe even a comet or asteroid? You can also see other planets! In Planet...

Specially prepared to mark the Fifth Anniversary of the launch of the James Webb Space Telescope. Calendar features: Large format, lots of room to...

Product Name ASI585MM/MC Sensor IMX585 Sensor Size 1/1.2″, 11.2×6.3mm Resolution 3840×2160 ADC 12bit Pixel Size 2.9μm Read n...

Find out about all 118 elements, the building blocks of matter that make up our entire universe, in this pocket-sized encyclopedia.Discover all the...

The Antlia LRGB-V Pro series filters are designed for monochrome cameras that use both CCD and CMOS sensors. Suitable sensors include KAF/KAI senso...

All-metal binocular tripod adapter designed for secure mounting of binoculars to standard photo and telescope tripods. Features 1/4"-20 threading o...

The 1.25-Inch variable Polarizing filter acts like a dimmer switch for your telescope. Adjust the amount of light transmission from 1% to 40% by ro...

Ideal for using a 68mm OAG, our M68 T-adapter fits any Celestron telescope with the larger 3.29" rear cell threads.  It is compatible with all C11 ...

Self-flattened quadruplet Astrograph which can be used for visual observing and astrophotography. The Askar 131F is a large-aperture telescope des...

Common T-rings use M42 threads and are not compatible with equipment that uses larger M48 threads.  Use this anodized aluminum T-ring to connect a ...