SharpStar 20032PNT 200/640 f/3.2 Newtonian telescope

F/3.2, full-frame corrected, carbon tube, high quality optics and mechanics

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SharpStar 20032PNT 200mm Super-Fast f/3.2 Paraboloid Newtonian Reflector Telescope with Carbon Fiber Tube - RED:

• 200MM f/3.8 Paraboloid Newtonian reflector optical design
• 3" Four-Element 0.85x Coma corrector for full frame imaging included (built-in)
• For max size of full frame (24 x 36mm) dSLR or CCD cameras
• 3" dual-speed rack and pinion focuser, 10:1 fine focus
• M54x0.75 interface with 55mm focal plane distance • M48x0.75 interface with 52mm focal plane distance • 1.25" eyepiece holder included
• Carbon fiber tube for best thermal performance
• Losmandy-style dovetail bar (installed)
Multi-function handle

The SharpStar 20032PNT is the latest product development of a super-fast focal ratio, paraboloid Newtonian reflector telescope from the Chinese manufacturer, Sharpstar. The fast f/3.2 focal ratio of the whole system has been achieved by using a 200mm F/3.8 paraboloid primary mirror, a 90mm plane secondary mirror of short axis and a 3" quartette 0.85x coma correcting optical system. 

Carbon fiber was used to create the tube, which is elegant, durable and lightweight. It also provides best thermal stability when combined with Pyrex glass for the primary mirror.

The SharpStar 20032PNT provides a very good reflectivity (over 96%) thanks to the enhanced  aluminium coating. The secondary cross (spike) is a one-piece molded unit, to ensure firm and secure housing for the secondary mirror. The use of a precision 3" Rack and Pinion focuser offers larger payload and a stronger hold, so that your focuser will not slip when using heavy-duty observation accessories or camera.

The SharpStar 20032PNT is equipped with all CNC-machined aluminum parts and a novelty handle, which takes its mechanical quality and appearance to a new level. The long slot on the handle also allows attachment of other optional accessories, i.e. a guidescope.

Below images shows the back of the telescope with two switches. There is a fan installed, but the heat is only a convenience for the user, i.e. there is a swith, but you will have to install heating as a DIY project. At least you won't have to cut the metal to install a switch.  The square hole under the fan is for a hygrometer that comes in the package. It also shows the temperature.

The SharpStar 20032PNT features a 0.85x reducing four-element coma corrector that helps to achieve full-frame photography and excellent perimeter dimming control (reduced or no vignetting). 

The focal plane is 55 mm from the M54X0.75 thread at the end of the focuser (from the end of the coma corrector, to be more precise...), and 52mm from the M48x0.75 thread. This "standard" back focal distance provides ample space for any visual or photographic equipment, being it a dSLR or a CCD / CMOS camera.

Model: 20032PNT
Aperture: 200mm
Focal length: 760mm (640mm with the built-in reducing coma corrector)
Focal ratio: 3.8 (3.2 with the built-in reducing coma corrector)
Primary mirror: Paraboloid
Mirror material: PZ33 (similar to Pyrex glass)
Coma corrector: air-spaced quartette
Short axis diameter of secondary mirror: 90mm
Fully illuminated image circle: 44mm (for full frame cameras)
Actual Field of View: 3.76 degrees
Main tube material: carbon fiber
Main tube outer diameter: 280.5mm
Total length of telescope: 633mm
Net weight: 8.00kg
Gross weight: 9.46 kg (including tube rings, dovetail bar, handle and tube cap)
Resolution: 0.6 arc seconds
Visual limiting star magnitude: 13.2
Focuser: 3" Rack & Pinion Precision Focuser
Focal plane: 55mm (from end face of M54 thread)

Product code FN20064HG
optikai felépítés Newton
objektív átmérő 200 mm
fókusz 640 mm
nyílásviszony F/3,2
segédtükör mérete 90 mm
nagyítástartomány
felbontóképesség 0,6 " (ívmásodperc)
kereső szabvány keresőpapucs, de a kereső nem tartozék
fókuszírozó 3" fogasléces 1:10 mikro
tartozék okulár és kapott nagyítás
egyéb tartozék 3" korrektor, tubusgyűrűk, losmandy prizmasín
mechanika
teljes tömeg 9,46 kg
tubus tömege 8 kg
méret 280x633mm

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The product comes with 1 year warranty.

Astronomical telescopes up to 100 Euros
Astronomical telescopes between 100 and 200 Euros
Microscope offer up to 200 Euros



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