Products

Technical Data Schott substrate material Thickness 2.0mm Surface Quality: 60/40 (Refer to MIL-O-13830) Fine-optically polished to ensure accurate ...

Sizes 2" Mounted Specifications CWL(centre wavelength): 656.3nm Fwhm: 7nm Tpeak: <85% Coating Wavelength: 300-1100nm Optical Denisity: OD3 Su...

L-eXtreme is a two 7nm bandpass filter which can be used with one-shot color cameras like DSLR's (digital SLR), and monochrome CCD cameras, it is a...

Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) a...

Together with the highly transparent in main nebula emission lines at OIII(496nm and 500nm), H-beta (486nm), NII(654nm and 658nm), H-alpha(656nm) a...

Quality Filter Materials: Schott B260 substrate material from Germany, 2.0mm thick CNC machined and black anodized aero-metal filter cell that is u...

Stainless steel 3kg/6.6lbs for RST-135 mounts

Specs: Designed for use with your RST-135 Mount Stainless Steel 200mm Length 18mm Diameter

Rainbow Astro RST-135 Vixen Saddle

Allows Celestron computerized telescopes (CPC, CGE, NexStar, Advanced Series) to be connected to a RS-232 serial port for computer control. A USB-t...

Details: - 55mm Long - SCT Female Threads - Takes 2" eyepieces and diagonals

34mm fully illuminated field but can handle full frame as well 95mm back-focus (55mm when back focus spacer and M48 ring installed) Drops f/ratio...

0.9x thread-on reducer/corrector produces a flat field across the entire image while shortening exposure time by 24%. Optimized for Evolux 62mm re...

0.9x thread-on reducer/corrector produces a flat field across the entire image while shortening exposure time by 24%. Optimized for Evolux 82mm re...

The Sky-Watcher Pier Extension is designed to raise the EQ6 or EQ6-R mount 8.4" from the tripod to provide extra height for more comfortable observ...

Overview 205mm aperture, 800mm focal length Fast f/4 focal ratio Parabolic mirror designed for imaging with 94% reflectivity 10:1, dual-speed, 2-i...

  254mm aperture, 1000mm focal length  Fast f/4 focal ratio Parabolic mirror designed for imaging with 94% reflectivity 10:1, dual-speed, 2-inch C...

  Maksutov-Cassegrain optical design Primary and secondary mirrors feature proprietary Radiant™ Aluminum Quartz™ (RAQ™) coatings Corrector plate f...

The Sky-Watcher SolarQuest solar tracking mount is lightweight and ridiculously easy to use. No need to worry about aligning your equipment the ni...

Star Adventurer 2i multi-function equatorial tracking mount with built-in Wi-Fi control  11-pound payload capacity  Ball head adapter included  ...

Counterweight kit for Star Adventurer mount.

Works on all Celestron Computerized Telescopes!Improve the accuracy of your initial star alignments by plugging in the GPS module into your telesco...

With the Apex ED reducer, an f/5.5 apo refractor becomes an incredibly fast f/3.6 astrograph. A slower f/9 telescope like an RC becomes a speedy f/...

Show all your astronomer friends that you are not only cool but stylish as well with this Starizona ballcap. Adjustable fit.

Performance The diagram above shows how the SCT Corrector improves the off-axis spot size on a Celestron 11" SCT. Performance is similar on other ...

StarSense Hand Control is compatible with the StarSense AutoAlign accessory for use with Celestron computerized telescopes Flash upgradeable via ...

Author: Stephen James O'Meara Hardcover: 380 pages The Herschel 400 is a list of 400 galaxies, nebulae, and star clusters, picked from over 2,500 d...

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

Baader Wide-T-Ring Canon R to connect Canon EOS R cameras on the Astro T-2 system and S52 dovetail All Baader Wide-T-rings have an S52 dovetail i...