product description
- German equatorial GoTo-Mount with stainless steel tripod
- Maximum payload: up to 13 kg
- GOTO function for easy finding and guiding the deep sky objects
- Ideal for astrophotography because of an ST-4 compatible autoguider port
- Fotonewtonian f/3.9 with 2,5" Hexafoc
- Excellent 2,5" Hexafoc Focuser with possibility to upgrade to a 10:1 reduction
- Large 85mm secondary mirror
- Elaborate 6 point flotation system for mirror support
- Large knobs for primary and secondary mirror adjustment
- Precision mount with ball bearings in all axis and adjustable polar finder scope with optional illumination
- 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 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. Also prepared for use with the HR Coma Corrector (part No. 0510330) which eliminates coma, field-curvature and astigmatism.
Bresser EXOS-2 GoTo Equatorial Mount.
Mount, tripod and hand box with computer. This German mount has tracking motors in both axes that follow celestial objects very precisely. The handbox with GoTo works reliable and controls the mount in every situation. Precise ball bearings in both axes ensures minimal backlash at all nine possible tracking speeds. The battery pack (12 V) is conveniently fastened to the tripod shelf and takes eight size "D" batteries.
The mount rests on a very tough and rigid steel tripod and can take optical tubes of up to 13 kg. GOTO Stargazing at the push of a button !
The Startracker GoTo System enables beginners to start astronomical observations in just a few minutes, and guides you to objects that are hard to localize through a standard finder scope.Just push the button and the GoTo System will find planets, nebulae or galaxies for you and position your telescope automatically and precise. The GoTo System database includes thousands of astronomical objects. The Messier mount with GoTo System allows you to observe without tedious searching, or image faint objects that are hard to find in a standard finder scope.
FEATURES- weight Tube without accessories: 8,7 kg - Tube with all accessories mounted: 11,5 kg
- weight EXOS II Goto: 5.0kg (without counterweight shaft, which weighs 1.0kg)
- weight Tripod: 4.9kg
- 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
- Cradle rings with handle and integrated piggyback camera holder (1/4 thread)
- Large knobs for primary and secondary mirror adjustment
- Dovetail plate with stainless steel rail
- Adjustable polar finder scope with optional illumination
- Bubble level for easy tripod setup
- Ball beared axes (RA / DEC) and worm gears for smooth and precise tracking
- Telescope tube
- EXOS II GOTO EQ mount with more than 100.000 sky-objects in data-base
- height adjustable stainless steel field tripod
- polar finder scope with optional illumination unit
- 2x counterweight 4.5kg
- Startracker GOTO handbox
- battery pack (batteries not included)
- Tube rings with handle and camera mounting feature
- 8x50 Finderscope recticle and true oriented view
- integrated 31.7 mm and T2 adapter
- adapter for 50.8 mm (2")
- mounting ring (for EXOS, LXD-75, EQ-5)
- handle with camera holder
- 8x50 Viewfinder
- 26mmm Super Plössl
- astronomy PC software Stellarium
- rotatable star map
- Manual
- Backfocus fully inward focused: 60mm
FIELD OF APPLICATION CUSTOM_ATTRIBUTE_CATEGORY_TITLE_FOCUSGROUP CUSTOM_ATTRIBUTE_CATEGORY_TITLE_PRODUCTFAMILY OPTICAL SPECIFICATIONS GENERAL TECHNICAL DATA CUSTOM_ATTRIBUTE_CATEGORY_TITLE_MASSES Field of application - Deep Sky Observation
- Deep Sky Photography
- Lunar observation
- Lunar photography
- Planetary observation
- Planetary photography
Focus Group - Advanced Amateurs
- Specialists and Research
- Visual enthusiasts
Product Family Reflector telescope Optical design Newtonian Reflector Magnification from 20 Magnification up to 400 Material Primary mirror BK-7 Primary mirror diameter 203 mm Secondary mirror diameter 85 mm Focal length 800 mm Aperture ratio 3.9 Angular resolution 0.56 arc seconds Finderscope 8 x 50 mm Mount Type German/Equatorial Mount with GoTo Material OTA Aluminium Polefinder scope included, illumination optional Drive system in RA / AZ 12V DC servo motors with encoders Fine movements Electric (RA and DEC) Bearing in alt-azimuth / RA 2 ball bearings Bearing in elevation / DEC 2 ball bearings Focusing system 2.5" Hexafoc Colour white Net weight OTA (incl. accessories) 11.5 kg Total length 100 cm Total width 100 cm Total height 175 cm Tube diameter 235 mm Tube length 700 mm Net Weight total (incl. accessories) 31 kg Counterweight 9 kg Eyepiece Barrel Diameter 50.8 mm
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