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NEW – now including a high-quality aperture Solar-filter for safe observation of sunspots, eclipses and planet transits. Great telescope for night and solar observation.
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 stainless steel tripod and can take optical tubes of up to 13 kg. GOTO Stargazing at the push of a button !
CHARCTERISTICS OPTICS
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 stainless 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.
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.
CHARCTERISTICS OPTICS
- Optical design: reflector telescope
- Mirror diameter: 203mm / focal length: 800mm / F/3.9
- Maximum recommended magnification: 406x
- Telescope for night and solar observing
- Very high quality Hexafoc focuser with 2.5" free inner diameter
- Diffraction limited optics with parabolic main mirror
- 8x50 straight through viewfinder with reticle
- Optimized finder socket for comfortable use
- Cradle rings with handle and integrated piggyback camera holder (1/4 thread)
- Smartphone adapter for celestial navigation included
- Dovetail plate with stainless steel rail
- Can be connected to SLR cameras (optional T2 ring required)
- 50.8mm (2) to 31.7mm (1.25) adapter with integrated T2 thread (T2-adapter ring for your camera is needed)
- Backfocus fully inward focused: 60mm
- 85mm secondary mirror for optimal illumination
- Large knobs for primary and secondary mirror adjustment
- Tube without accessories: 8.7 kg - Tube with all accessories mounted: 11.5 kg
- Stable parallactic mount with fine drive in both axes
- Ball bearings in both axes for more precise movements
- Stable height adjustable stainless steel tripod ( Min. 69cm / Max. 109.5cm )
- Load capacity up to 13 kg payload
- Circular bubble for easy horizontal alignment
- GoTo Mount with motors and hand box controller, for easy finding and guiding moon, planets, stars and much more
- ST-4 compatible autoguider interface
- Pole height scale for setting the latitude
- Scaled graduated circular rings to facilitate finding objects using a star atlas or planetarium software
- Pole finder scope with optional illumination ( item no. 4964212 )
- Tripod weight: 4.7 kg
- Mount weight: 6.7 kg (without counterweight)
- Total weight incl. counterweight: 20.4 kg
- Batteries: not included
- Optical tube
- 26mm Super Plössl eyepiece (31.7mm / 1.25")
- Integrated 31.7 mm and T2 adapter
- Prism rail with stainless steel clamping surface
- Adapter for 50.8 mm (2") eyepieces
- 8x50 optical viewfinder
- Rotatable star map
- Aperture solar filter
- Tube clamp with handle and camera holder
- Smartphone adapter for celestial navigation
- Adjustable polar finder scope with optional illumination
- Astronomy PC software Stellarium (via download)
- Equatorial EXOS 2 GOTO mount with stainless steel tripod and Startracker handcontroller
- Stainless steel tube field tripod with accessory tray
- 2 x 4.5 kg counterweight
- Battery pack (batteries not included)
Technical Data
| Field of application | |
|---|---|
| Field of application |
|
| Focus group | |
| Focus Group |
|
| Product family | |
| Product Family | Reflector telescope |
| OPTICAL SPECIFICATIONS | |
| Optical design | Newtonian Reflector |
| Magnification from | 20 |
| Magnification up to | 400 |
| Material Primary mirror | BK-7 |
| Secondary mirror diameter | 85 mm |
| Mirror/Lens diam. | 203 mm |
| Focal length | 800 mm |
| Aperture ratio | 3.9 |
| Angular resolution | 0.56 arc seconds |
| Finderscope | 8 x 50 mm |
| GENERAL TECHNICAL DATA | |
| Material OTA | Aluminium |
| Colour | white |
| 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 |
| Material tripod3 | Stainless Steel |
| Eyepiece Barrel Diameter | 50.8 mm |
| Material | Aluminium |
| Mount Type | German/Equatorial Mount with GoTo |
| Extended warranty | 10 years |
| DIMENSIONS & WEIGHTS | |
| Total length | 1000 mm |
| Total width | 1000 mm |
| Total height | 1750 mm |
| Net weight OTA (incl. accessories) | 11.5 kg |
| Tube diameter | 235 mm |
| Tube length | 700 mm |
| Net weight mount (incl. accessories) | 6.7 kg |
| Net weight tripod (incl. accessories) | 4.7 kg |
| Counterweight | 9 kg |
Technical Data
| Field of application | |
|---|---|
| Field of application |
|
| Focus group | |
| Focus Group |
|
| Product family | |
| Product Family | Reflector telescope |
| OPTICAL SPECIFICATIONS | |
| Optical design | Newtonian Reflector |
| Magnification from | 20 |
| Magnification up to | 400 |
| Material Primary mirror | BK-7 |
| Secondary mirror diameter | 85 mm |
| Mirror/Lens diam. | 203 mm |
| Focal length | 800 mm |
| Aperture ratio | 3.9 |
| Angular resolution | 0.56 arc seconds |
| Finderscope | 8 x 50 mm |
| GENERAL TECHNICAL DATA | |
| Material OTA | Aluminium |
| Colour | white |
| 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 |
| Material tripod3 | Stainless Steel |
| Eyepiece Barrel Diameter | 50.8 mm |
| Material | Aluminium |
| Mount Type | German/Equatorial Mount with GoTo |
| Extended warranty | 10 years |
| DIMENSIONS & WEIGHTS | |
| Total length | 1000 mm |
| Total width | 1000 mm |
| Total height | 1750 mm |
| Net weight OTA (incl. accessories) | 11.5 kg |
| Tube diameter | 235 mm |
| Tube length | 700 mm |
| Net weight mount (incl. accessories) | 6.7 kg |
| Net weight tripod (incl. accessories) | 4.7 kg |
| Counterweight | 9 kg |
Product reviews
BRESSER Messier NT-203s/800 EXOS 2 GOTO Telescope
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