Explore Scientific 152mm f/4.8 Carbon Fibre Maksutov Newtonian Telescope

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Highly corrected 152mm f/4.8 Maksutov Newtonian Telescope with Carbon Fibre Tube.

Maksutov-Newtonian telescopes have an optical design made entirely from spherical surfaces. Spherical surfaces are perfect for mass production, they can easily and affordably be ground and polished to a very high surface accuracy. By comparison, a fast Newtonian’s mirror must have steep parabolic curves that are considerably more difficult to manufacture so, unless you spend significantly more, you cannot achieve the same high surface-finish accuracy. The Mak-Newt’s closed tube is also less prone to air currents and the mirror is protected from the elements. The only downsides are increased weight (though this is largely offset by the lighter carbon-fibre tube) the front corrector lens attracts dew (you’ll need a dew-heater-tape) and the scope takes longer to cool, otherwise the design and performance is superior to a regular Newtonian in every way.

David Levy’s reputation as a Comet and Asteroid Hunter needs little introduction in Astronomical circles: he has discovered 22 Comets and 41 Asteroids, many with the use of his beloved Minerva – a 6-inch f/4 Newtonian Reflector. Levy had mused that had he the opportunity to redesign the instrument that he’d opt for closer to an f/5 system, in order to improve off-axis star images.

Explore Scientific decided to join forces with the veteran observer and help him develop this completely new instrument – the Explore Scientific David H Levy Comet Hunter 152mm Carbon Fibre Maksutov Newtonian. Plumping for an f/4.8 design, this instrument is capable of delivering huge fields of view – 2 degrees or more of the night sky. At such a short focal length, it lends itself particularly well to widefield astrophotography.

The Comet Hunter is constructed using thermally inert and extremely robust – yet very light – carbon fibre. The whole telescope weighs in at around 8kg, and being so light, puts very little strain on mounts compared to other instruments of similar aperture. The tube is heavily baffled and internally blackened, offering fantastic contrast and a 2″ graduated 10:1 Crayford focuser comes as standard. The Comet Hunter also comes with a brilliant 8×50 erect image illuminated finder, two seats for the finder or additional piggybacked accessories and extension tubes.

Category: Cameras and Photography:Telescopes and Binoculars:Telescopes
Location: Rushden

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