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Bobs Knobs Celestron 6'' f/10 SCT Collimating Thumbscrews

Bobs Knobs Celestron 6" f/10 SCT Collimating Thumbscrews£19.99

Fits: Celestron 6” (15 cm) f/10 SCT versions (C6-A-XLT, C6-GT, C6-S, C6-SE, C6-SGT, others)
Knobs: Black oxide steel (black) or stainless steel (silver), 12 mm (1/2”) diameter

 
Bobs Knobs Celestron 8'' Edge HD Collimating Thumbscrews

Bobs Knobs Celestron 8" Edge HD Collimating Thumbscrews£19.99

Fits: Celestron 8” (20 cm) f/10 SCT with Fastar secondary and EdgeHD optics.
Knobs: Black-oxide steel, 12 mm (1/2”) diameter
Threads: Black oxide steel

 
Bobs Knobs Celestron 8'' f/10 Metric Collimating Thumbscrews

Bobs Knobs Celestron 8" f/10 Metric Collimating Thumbscrews£19.99

Fits: Most Celestron 8” (20 cm) f/10 SCT made in 2005 and later with black Phillips factory collimation screws that have metric threads. Includes SkyWatcher SCT and non-EdgeHD Fastar.

 
Bobs Knobs Celestron 8'' SCT With Hyperstar Collimating Thumbscrews

Bobs Knobs Celestron 8" SCT With Hyperstar Collimating Thumbscrews£19.99

Fits: Celestron 8” (20 cm) f/10 SCT with metric collimation screws and Hyperstar option.
Knobs: Black oxide steel, 12 mm (1/2”) diameter
Threads: Black oxide steel

 
Bobs Knobs Celestron 9.25'' SCT Metric Collimating Thumbscrews

Bobs Knobs Celestron 9.25" SCT Metric Collimating Thumbscrews£19.99

Fits: Celestron 9.25” (23.5 cm) f/10 SCT versions with metric screw threads (CPC 925). Not for C9.25 with “Trifid” Faster or EdgeHD optics

 
Bobs Knobs Celestron C6N, C8N, C10N Secondary 30mm Collimating Thumbscrews

Bobs Knobs Celestron C6N, C8N, C10N Secondary 30mm Collimating Thumbscrews£19.99

Fits: Celestron C6-N/NGT, C8-N/NGT, and C10-N/NGT Newtonian telescopes.
Knobs: Black plastic, 13 mm (1/2”) diameter
Threads: Stainless steel

 
Bobs Knobs Skywatcher Newtonian Secondary Collimating Thumbscrews

Bobs Knobs Skywatcher Newtonian Secondary Collimating Thumbscrews£19.99

Fits: Skywatcher Newtonian Reflector Telescopes
Knobs: Black plastic, 13 mm (1/2”) diameter
Threads: Stainless steel

 
Celestron 25pc Prepared Specimen Microscope Slide Set

Celestron 25pc Prepared Specimen Microscope Slide Set£32.00   £19.99

The Celestron 25 Piece Microscope Slide Kit is packed in a wooden case and offers hours of discovery with prepared specimen slides

 
Collins Stars & Planets Guide

Collins Stars & Planets Guide£19.99

A comprehensive guide to all the stars and celestial objects visible with the use of binoculars or an average-sized telescope, this fully revised edition features updated and extended text, improved sky charts, and new diagrams and photographs.

 
David Levy's Guide to Observing and Discovering Comets

David Levy's Guide to Observing and Discovering Comets£19.99

David Levy has held a lifelong passion for comets, and is one of the most successful comet discoverers in history. In this book he describes the observing techniques that have been developed over the years - from visual observations and searching, to photography, through to electronic charge-coupled devices (CCDs).

 
David Levy's Guide to Observing Meteor Showers

David Levy's Guide to Observing Meteor Showers£19.99

This book is a step-by-step guide to observing meteors and meteor showers. Any necessary science is explained simply and in clearly understandable terms. This is a perfect introduction to observing meteors, and is ideal for both seasoned and budding astronomers.

 
Exploring the Night Sky with Binoculars 4th Edition

Exploring the Night Sky with Binoculars 4th Edition£19.99

Patrick Moore has painstakingly researched Exploring the Night Sky with Binoculars to describe how to use binoculars for astronomical observation. He explains basic astronomy and the selection of binoculars, then discusses the stars, clusters, nebulae and galaxies that await the observer.

 
Geoptik 2'' Filter Adaptor For 58mm SLR Camera Lenses

Geoptik 2" Filter Adaptor For 58mm SLR Camera Lenses£19.99

This extremely handy adaptor by Geoptik allows you to use 2" astronomy filters on 58mm SLR camera lenses. This will open you up to a massive range of filters.

 
Geoptik 80mm Universal Vixen Style Dovetail Bar

Geoptik 80mm Universal Vixen Style Dovetail Bar£19.99

This is a high quality CNC machined universal 80mm long dovetail bar by Geoptik. Anodized in their trademark orange for that custom look.

 
Helios Sport 10 x 25 Compact Roof Prism Binoculars

Helios Sport 10 x 25 Compact Roof Prism Binoculars£19.99

Lightweight and convenient, these stylish compact binoculars feature fully coated optics, quality BK-7 prisms, fold-down eyecups and protective rubber armouring.

 
OVL Hydrogen Beta Filters

OVL Hydrogen Beta Filters£19.99  -  £29.99

This high performance CCD filter transmits only the Hydogen Beta emission line, and therefore is useful for greatly increasing the contrast of objects that glow in the corresponding region of the spectrum, for example the Horsehead, Cocoon and California nebulae.

 
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Page 188 of 208:    3,321 Items