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The ultimate telescope for the novice to intermediate astronomer, the Inspire 100AZ features the largest aperture in the Inspire family line and its short tube offers a wider field of view perfectly suited for larger, fainter deep sky objects.

A common limitation that plagues owners of most popular Schmidt-Cassegrain telescopes is the narrow field size and high magnifications produced by their slow optical system (typically, f/10).

Baader H-alpha f/2 Ultra-Highspeed Filter – Premium Grade. 3.5nm FWHM (to harmonize the exposure time from H-alpha with O-III / S-II), recommended for extremely fast optical systems from f/3.4 to f/1.8

Even Bestsellers can be improved: This most highly rated Hyperion zoom-eyepiece is available now in its fourth generation and has become a lot more versatile. The 290 gram housing is lighter by 80 grams and now features a slim 55 mm diameter, both features that make it even more desirable for use with binoviewers.

-2 BBHS® Mirror Diagonal, solid metal body only, with male/female T-2 thread. (BBHS® = broadband hardsilver coating with dielectric protective overcoating)

The Baader UFC Tilter is a new addition to the UFC family. Its purpose is to allow easy adjustment of an imaging sensor in order to compensate for image plane tilt.

150MM (6") F/750 PARABOLIC NEWTONIAN REFLECTOR OTA

Magnifications (with eyepieces supplied): x30, x60, x75, x150
Highest Practical Power (potential):x300
Diameter of Primary Mirror: 150mm

The Antlia H-alpha EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD 5) on unwanted wavelengths and the excellent transmittance characteristics found in the Antlia 3nm Pro.

Antlia OIII 4.5nm EDGE filters are designed to deliver 85% transmission at the 500.7nm line that provides you with the maximum signal to reveal the faintest OIII nebulae structures.

High transmittance for working with both long focal ratios and fast optical systems (as fast as f/3 or maybe even f/2.8)!

Astronomik has added a new range of RGB filters to its line of World class products. The new Deep-Sky RGB filters are designed for maximum deep sky imaging performance with CCD cameras.

*Black Friday deal while stock lasts*

​SESTO SENSO 2 (SIXTH SENSE) is the best stepper motor based robotic focusing motor for your telescope!

This secondary spider is manufactured on a modern CNC machining center. The high precision manufacturing ensures that the 1.8mm thick struts of the spider are perfectly aligned and the diffraction induced spikes on bright stars appear razor sharp.

The brand new Deep Sky Dad autofocuser will save you time and frustration by providing pinpoint stars on your beautiful photos of the cosmos on your William Optics RedCat

Explore Scientific Flight Case ED127 Aluminium Tube. Protect your precious OTA with this heavy duty aluminium flight case.

When the Diamondback binocular range was updated in 2016 with improved optics, dielectric prism coatings and a 10% lighter body, there was really only one way for this latest version to go - the addition of HD glass.