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Bresser Messier NT203s/800 Optical Tube BRE_4803800 to teleskop Bresser z Robtics kategorii Teleskopy Teleskopy.
Dane techniczne:
- System teleskopowy: Tylko tuba optyczna (OTA)
- Rodzaj teleskopu: Newton, Astrograph
- Marka teleskopu: Bresser
- Przysłona teleskopu (zasięg): 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
- Aluminium tube with optics
- Tube rings with handle and camera mounting feature
- 8x50 Finderscope with recticle
- 26mmm Super Plössl
Technical Data
Field of application | |
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Field of application |
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Focus group | |
Focus Group |
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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 |
- System teleskopowy
- Tylko tuba optyczna (OTA)
- Rodzaj teleskopu
- Astrograph
Newton - Przysłona teleskopu (mm)
- 203mm
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