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Bresser Messier NT203s/800 Optical Tube

BRE_4803800
€ 529,00
Inclusief belasting
Bresser Messier NT203s/800 Optical Tube BRE_4803800 is een Bresser telescoop uit de Robtics categorie Telescopen Telescopen.

Specificaties:
  • Telescoop systeem: Losse telescoopbuis (OTA)
  • Telescoop type: Newton, Astrograaf
  • Telescoop merk: Bresser
  • Telescoop opening (van/tot): 200mm - 299mm

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Bresser Messier NT203s/800 Optical Tube

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 and a fast parabolic main mirror. 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.

Please note: Reflector telescopes with optical design "Newton" are very good for astronomical observing at the starry night sky. But these telescopes are not well usable for observing landscape and nature during daylight. Therefore we suggest Bresser refractor (lens) telescopes for landscape and nature observing.

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
  • Backfocus fully inward focused: 60mm
  • 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

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
Product family
Product Family Reflector telescope
OPTICAL SPECIFICATIONS
Optical design Newtonian Reflector
Magnification from 20
Maximum recommended magnification 400
Secondary mirror diameter 85 mm
Mirror/Lens diam. 203 mm
Focal length 800 mm
Angular resolution 0.56 arc seconds
Finderscope 8 x 50 mm
Width of image field width 24x36 mm receiver 2.5 degrees
Height of image field width 24x36 mm receiver 1.7 degrees
Mount Type Optics without Mount
GENERAL TECHNICAL DATA
Material OTA Aluminium
Focusing system 2.5" Hexafoc
Colour white
Dust protection caps Dust protection caps for open aperture and eyepiece holder
Ext. warranty after online registration* 10 Years
DIMENSIONS & WEIGHTS
Net weight OTA (incl. accessories) 8.7 kg
Tube diameter 235 mm
Tube length 700 mm
Net weight mount (incl. accessories) 11.5 kg
Eyepiece Barrel Diameter 50.8 mm
Telescoop systeem
Losse telescoopbuis (OTA)
Telescoop type
Astrograaf
Newton
Telescoop opening (mm)
203mm

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Bresser Messier NT203s/800 Optical Tube

Bresser Messier NT203s/800 Optical Tube

Bresser Messier NT203s/800 Optical Tube BRE_4803800 is een Bresser telescoop uit de Robtics categorie Telescopen Telescopen.

Specificaties:
  • Telescoop systeem: Losse telescoopbuis (OTA)
  • Telescoop type: Newton, Astrograaf
  • Telescoop merk: Bresser
  • Telescoop opening (van/tot): 200mm - 299mm

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