Explore Scientific PN208/812 Mark II OTA black – Madeira Optics
Explore Scientific PN208/812 Mark II OTA black

Explore Scientific PN208/812 Mark II OTA black

  • $1,038.24
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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.


  • 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
Brand Explore Scientific
Warranty, years 2
Optical design reflector
Optical scheme Newtonian
Primary mirror diameter (aperture), mm 208.0
Secondary mirror diameter, mm 85.0
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
User level experienced users, professionals
Observed object deep-sky objects