Various

0.85x reducer and flattener for Skywatcher Evostar 72/420 ED APO telescopes (with M48 screw)

100 pages, 20x30 cm, luxury edition on the occasion IQ 2009

100 pages, 20x30 cm, luxury edition on the occasion IQ 2009

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Telescopes - historical development, scientific importance, technological advances and the people behind this breakneck progress.

The book presents the main facts, dependencies and interpretations underlying Astronomy - visible and true movements of space objects, celestial coordinates, structure and evolution of the Earth, Moon, planets and the Sun, structure and evolution of stars, star systems, the Milky Way and galaxies. The physical conditions and processes of space objects and methods for their study are examined.
It is intended for a wide range of readers. It can be used as a textbook and a source of information for preparing talks, seminars, etc.

Well-thought-out internal organization with clips for attaching valuable optics and accessories.
The sturdy construction is ideal for camping and trekking. The clever layout ensures that you don't leave anything behind. Six zipped pockets and Velcro fasteners inside help keep things organized. Waterproof seams provide perfect protection against the elements. PALS straps inside and outside for attaching additional pockets and similar items. High wearing comfort thanks to padded, adjustable shoulder straps. Adjustable waist belt with quick release allows perfect weight distribution when carrying heavier equipment. Three sturdy carrying handles, one on top and one on each side. You can also attach a tripod or sleeping bag to the bottom of the backpack using quick release straps.

Bahtinov-Mask for 120-127 mm telescopes with 125-170 mm tube-diameter