Bresser MESSIER NT203S/800 f/3.9 Photo Newton Telescope

Bresser MESSIER NT203S/800 f/3.9 Photo Newton Telescope
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Shipping time: 5 days + testing 5 days + testing
Product no.: 4803800
GTIN/EAN: 4007922152035
MPN: 4803800
609,00 EUR
19 % VAT incl. excl. Shipping costs
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Products description

Überprüfung Justage Newton Fangspiegel Hauptspiegel Okularauszug

The Skywatcher Explorer 200P is controlled and adjusted by us before delivery. The eyepiece output is stopped.

All Newton telescopes should be adjusted before the first use and then regularly to get a sharp image. We therefore adjust all our Newton before they leave our house.

How we adjust: About us





 

Bresser MESSIER NT203S/800 f/3.9 Photo Newton TelescopeMessier NT203s/800 Optical Tube

 
  • Fotonewtonian f/3.9 with 2,5" Hexafoc
  • Aperture: 203mm; Focal Length: 800mm f/3.9
  • Excellent 2,5" Hexafoc Focuser with possibility to upgrade to a 10:1 reduction
  • Ready for the HR Coma Corrector (part No. 0510330)
  • Scope of delivery: OTA + Finder + Tuberings + SPL26mm
  • Large 85mm secondary mirror
  • Elaborate 6 point flotation system for mirror support
  • Universal 44mm Dovetail plate with stainless steel rail (fits LXD75/Great Polaris/EQ5)
 


In the past few years the Bresser Newton telescopes have become the standard workhorse for Deep Sky astrophotography. We now proudly present the second generation of this telescope, the Bresser NT-203s/800 with Hexafoc. The Bresser NT-203s/800 f3.9 will deliver you deeper images due to its - compared to 8" f/5 systems - oversized primary mirror and therefore faster optical system with the same exposure time. The big 85 mm secondary prevents vignetting for optimal illumination The excellent 2,5" Hexafoc focuser 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 haircross and laser-engraved scale  leave nothing to desire even for demanding astrophotographers. The NT-203s/800 Hexafoc has a classical tube construction with an aluminium tube. The focuser can be upgraded with a 10:1 reduction (part No. 0625720) without problems. Ready to use with the  HR Coma Corrector (part No. 0510330) which eliminates coma, field-curvature and astigmatism.

FEATURES
  • Tube without accessories: 8,7 kg - Tube with all accessories mounted: 11,5 kg
  • Aperture 203 mm
  • Focal length 800 mm
  • Focal ratio f/3,9
  • 85mm secondary mirror for optimal illumination
  • Diffraction limited optics with parabolic main mirror
  • Large knobs for primary and secondary mirror adjustment
 
SCOPE OF DELIVERY
 
  • Aluminium tube with optics
  • Tube rings with handle and camera mounting feature
  • 8x50 Finderscope with recticle
  • 26mmm Super Plössl
 

Additional technical data

  • Backfocus fully inward focused: 60mm
 

Technical Data

FIELD OF APPLICATION
Field of application
  • Deep Sky Observation
  • Deep Sky Photography
  • Lunar observation
  • Lunar photography
  • Planetary observation
  • Planetary photography
FOCUS GROUP
Focus Group
  • Advanced Amateurs
  • Visual enthusiasts
  • Specialists and Research
OPTICAL SPECIFICATIONS
Optical designNewtonian Reflector
Magnification from20
Maximum recommended magnification400
Primary mirror diameter203 mm
Secondary mirror diameter85 mm
Focal length800 mm
Angular resolution0.56 arc seconds
Finderscope8 x 50 mm
Width of image field width 24x36 mm receiver2.5 degrees
Height of image field width 24x36 mm receiver1.7 degrees
Mount TypeOptics without Mount
GENERAL TECHNICAL DATA
Material OTAAluminium
Focusing system2.5" Hexafoc
Colourwhite
Dust protection capsDust protection caps for open aperture and eyepiece holder
Warranty10 Years
DIMENSIONS & WEIGHTS
Net weight OTA (incl. accessories)8.7 kg
Tube diameter235 mm
Tube length700 mm
Net weight mount (incl. accessories)11.5 kg
Eyepiece Barrel Diameter50.8 mm




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Bresser MESSIER NT203S/800 f/3.9 Photo Newton Telescope
Bresser MESSIER NT203S/800 f/3.9 Photo Newton Telescope

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