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3 inches for Losmandy / 3" dovetails with additional matching holes and screws for mounting the Baader Stronghold. Width: 60mm for V or Z terminal. Includes Screws.

After 15 years of offering AstroSolar film sheets as DIY-product, this system of Baader Solar Filters™ is designed to retain the true optical quality of the diffraction limited AstroSolar Safety Film.

Baader's zero power red dot finderscope fetauring a 30mm optical aperture with anti-relective lens coatings. Supplied with a score of bases to fit it onto virtually telescope including all major brands.

Z-dovetail rail: Pre-drilled and with longitudinal grooves for any telescopes, pipe clamps etc. Length = 200mm, with 40 mm wide contact surface for the attachment of any tube rings. Fits Astrophysics and Zeiss clamps.

This accessory is used to adapt the threads on all Schmidt-Cassegrain models for use with 1.25" accessory items. This includes diagonals, straight through viewing with eyepieces, etc.

This handy new accessory will help you to check the quality of nearly any telescope you come across in the future! While it is true that optical aberrations can be determined by the star test, this method requires steady air and an experienced observer.

If you have a William Optics refractor 2" diagonal (or some clones), you can now purchase this simple adapter to turn it into and SCT diagonal, which you can use on SCT

Safe solar observation with all types of binoculars / safe solar photography with all camera lenses. AstroSolar Safety Film OD 5.0, mounted stress free in high-cality cell

Comprises 4 x high quality glass colour filters. Yellow, Red, Green & Moon/Neutral Density Filters included. These filters will fit most internally-threaded eyepiece barrels of 1.25"/31.7mm format. Supplied in attractive foam-lined plastic screw top storage case.

A very well made aluminium case that protects all your eyepieces. Comes complete with foam inside and pre cut eyepiece holes. Can hold up to 9 eyepieces varying from 1.25" up to 2".

The bright galaxies, star clusters, and nebulae catalogued in the late 1700s by the famous comet hunter Charles Messier are still the most widely observed celestial wonders in the sky. The second edition of Stephen James O'Meara's acclaimed observing guide to the Messier Objects features improved star charts for helping you find the objects, a much more robust telling of the history behind their discovery - including a glimpse into Messier's fascinating life - and updated astrophysical facts to put it all into context.

Takes beginners and occasional sky observers to the next stage, with necessary advice, tips, and background information

The kit removes most of the backlash in Meade's focusing system and consistently provides a light precise feel to the focuser knob.

The RVO Horizon 2x Barlow lens is a high quality 1.25" barlow that will increase the magnification of any eyepiece by a factor of 2x.

Excellent optical quality combined with rubber armoured protection make this an ideal travellling companion at a modest price.

Optional Bracket for the ZWO EAF (Electronic Auto Focuser) focus motor for Takahashi, Skywatcher Esprit, Vixen VC200L and Orion ED80T.