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Parabolic Newtonian reflector

Reflector
Optical design
208
Aperture – the diameter of the light-collecting lens (refractors and catadioptric) or mirror (reflectors) that the telescope uses to collect light
812
Focal length – the distance from the primary lens or mirror to the point at which the light is focused
Availability

Product ID 70857
Brand Explore Scientific
Warranty 2
EAN 0753215774166
Shipping Weight 12.8
Optical design reflector
Description

In the past few years the Explore Scientific Photo Newtons have become the standard workhorse for Deep Sky astrophotography. We now proudly present the second generation of this telescope, the Explore Scientific Photo Newton Mark II Hexafoc. The Explore Scientific Photo Newton Mark II will deliver you deeper images due to its – compared to competing 8" f/4 systems – oversized primary mirror and therefore faster optical system with the same exposure time. The big 85mm secondary prevents vignetting for optimal illumination The excellent 2.5" Hexafoc also does not cause vignetting due to its large diameter and makes focussing a joy – the smoothness and shifting-free operation sets new standards in this price class. This groundbreaking focuser, tube rings with 44mm universal standard dovetail and camera mounting feature and a high-end finderscope with illumination and laser-engraved scale leave nothing to desire even for demanding astrophotographers. The PN208 Mark II Hexafoc has a classical tube construction with an aluminium tube. The focuser can be upgraded with a 10:1 reduction without problems.

Features:

  • Aperture: 208mm; focal length: 812mm
  • Excellent 2,5" Hexafoc Focuser
  • Ready for the HR Coma Corrector
  • Large 85mm secondary and 2.5" focuser offers a perfect field illumination
  • 2,5" Hexafoc focuser with possibility to upgrade to a 10:1 reduction
  • Universal 44mm Dovetail plate with stainless steel rail (fits LXD75/Great Polaris/EQ5)
  • Elaborate 6 point flotation system for mirror support

The kit includes:

  • Aluminium tube with optics
  • Tube rings with handle and camera mounting feature
  • 8x50 Finderscope with illuminated recticle and true oriented view
  • 26mmm Super Plössl
  • Carrier bag
  • Manual
Specifications
Product ID 70857
Brand Explore Scientific
Warranty 2
EAN 0753215774166
Shipping Weight 12.8
Optical design reflector
Optical scheme Newtonian
Primary mirror diameter (aperture), mm 208
Secondary mirror diameter, mm 85
Lens (mirror) shape parabolic
Focal length, mm 812
Magnification, x 20 — 400
Aperture ratio f/3.9
Resolution threshold, arcseconds 0.74
Limiting stellar magnitude 13.5
Eyepieces SUPER Plössl 26mm
Finderscope 8x50
Focuser 2.5" Hexafoc
Optical tube material steel
Optical tube weight, kg 9.8
User level experienced users, professionals
Observed object planets of the Solar System and deep-sky objects
Pouch/case/bag in set bag
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