Bintel BT152 6 Inch Dobsonian Telescope

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Bintel BT152 6 Inch Dobsonian Telescope


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Only 2 left in stock (can be backordered)

This BINTEL 6 inch Dobsonian Telescope has a precision (152mm) primary mirror with outstanding 1/12th wave surface accuracy. Every optical surface is checked during manufacturing using laser interferometry to meet these exacting tolerances.

The BT152 Dobsonian features quality components and accessories to make using the telescope as simple and enjoyable as possible. These include:

  • Primary and secondary mirrors:  The mirrors are made of B270 “water white” optical glass that is free of internal stress. The thermal stability of B270 glass is better than other glass used for the mirrors of most reflectors in this price range. The mirrors are ground and polished to exacting tolerances and checked by laser interferometry to guarantee diffraction limited performance. The optics are then coated with 91% reflectivity aluminium, and overcoated with a protective layer of silicon dioxide (quartz) for long life.
  • Knurled collimation knobs on the primary mirror cell making precise optical alignment much easier – no more fumbling with tools in the dark.
  • fully adjustable four-vane spider supporting the secondary mirror.
  • High Quality 1.25″ Crayford Focuser allowing extra smooth focus control without backlash.

Standard Accessories include: Quality 25mm and 9mm Fully Multi Coated Plossl Eyepieces, Moon filter, 6 x 30  Finderscope, Base carry handle, eyepiece rack and Snap-on dust cap.

Technical Data for the Bintel BT152 6″ Dobsonian

Optical Design                                    Newtonian Reflector (Parabolic Mirror)

Aperture                                             152mm

Focal Length                                      1200mm

Focal Ratio                                          f/8

Highest Useful Magnification          220x

Limiting Stellar Magnitude              12.0

Resolving Power                               0.76 arc seconds

Finderscope                                       6 x 30 Achromatic

Focuser                                               NEW 1.25″ Crayford design

Eyepiece                                            25mm (48x) and 9mm (133x) Plossl

OTA weight                                        8kg

Base Weight                                     10kg

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