Product Highlights
203mm f/3.9 Newtonian telescope with mount and tripod
- Fotonewtonian f/3.9 with 2.5" Hexafoc
- Aperture: 203mm; Focal Length: 800mm f/3.9; large 85mm secondary mirror
- Excellent 2.5" HEXAFOC focuser with possibility to upgrade to a 10:1 reduction
- Equat. EXOS-2 mount with stainless steel tripod and max. load of 13 kg
- Elaborate 6 point flotation system for mirror support
- Large knobs for primary and secondary mirror adjustment; handle and camera holder included
- Equat. EXOS-2 mount with solid stainless steel tripod and max. load of 13 kg
- Aperture Solar-filter and smartphone adapter for celestial navigation included
- Precision mount with ball bearings in all axis and adjustable polar finder scope with optional illumination
- GoTo motors + Startracker optional (part no. 4951750)
With BRESSER, you can enjoy a smooth introduction to the vast world of astronomy. Our detailed information ("Telescope Guide") provides valuable tips for beginners— but even experienced astronomers can use the information we provide (e.g., tables for the geographical latitude of all major world cities) as a reference.
Here is the table of contents of the comprehensive BRESSER Telescope Guide:
With BRESSER, you can enjoy a smooth introduction to the vast world of astronomy. Our detailed information ("Telescope Guide") provides valuable tips for beginners—but even experienced astronomers can use the information we provide (e.g., tables for the geographical latitude of all major world cities) as a reference.
Here is the table of contents of the comprehensive BRESSER Telescope Guide:
- 2. The View into the Starry Sky
- 2.1 Observing with the Naked Eye
- 2.1.1 Observing Constellations with the Naked Eye
- 2.2 Observing with Binoculars
- 2.2.1 Observing Planets and Moons with Binoculars
- 2.2.2 Observing Deep Sky Objects with Binoculars
- 2.2.3 Every Beginning is Easy
- 2.3 Observing with a Telescope
- 2.4 The Moon
- 2.4.1 The Moon Phases
- 2.4.2 The Far Side of the Moon
- 2.4.3 The Moon Map
- 2.4.4 Maria (Seas)
- 2.4.5 Mare
- 2.4.6 Craters
- 2.4.7 The Ray Craters
- 2.5 Observing the Solar System with a Telescope
- 2.5.1 Where are the Planets?
- 2.5.2 Planet Observation
- 2.5.3 The Position of the Planets Relative to the Sun
- 2.5.4 The Planets Introduce Themselves
- 2.5.5 Deep Sky Observation with a Telescope
- 2.6 Practical Observation Tips and Tricks
- 2.6.2 Tips for Optimal Observation Conditions
- 2.7 The Most Beautiful Objects Throughout the Year
- 4. Telescopes
- 4.1 The Telescope as an Observation Instrument
- 4.2 Optics
- 4.2.1 Refractor (Lens Telescope)
- 4.2.2 Reflector (Mirror Telescope)
- 4.3 Mechanics
- 4.3.1 Altazimuth Mount
- 4.3.2 Equatorial Mount
- 4.3.3 Drive Motors
- 4.4 Accessories
- 4.4.1 Eyepieces
- 4.4.2 Important Tips for Eyepiece Selection
- 4.4.3 Filters
- 4.4.4 Photographic Accessories
- 4.4.5 Other Accessories
- 5.1 Which Telescope for Whom?
- 5.1.1 Deep-Sky Observations
- 5.1.2 Observing Closer Planets
- 5.1.3 The Topic of Portability
- 5.1.4 Price Factor When Buying a Telescope
- 6. Useful Tables
- 6.1 Table for the Geographic Latitude of All Major World Cities
- 6.1.1 Observers in the Northern Hemisphere (N):
- 6.1.2 Observers in the Southern Hemisphere (S):
- 6.2 Lookup Table for Notable Stars
- 6.3 Getting Acquainted with the Universe - or: Distances in Space
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.
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
CHARACTERISTICS MOUNT
- 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
- Retrofittable with the Bresser Star Tracker Goto Kit ( item no. 4951750 )
- Circular bubble for easy horizontal alignment
- 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: 5.6 kg (without counterweight)
- Total weight incl. counterweight: 19.3 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)
- BRESSER EXOS-2 mount
- Stainless steel tube field tripod with accessory tray
- 2 x 4.5 kg counterweight
Bearing in alt-azimuth / RA: | 2 ball bearings |
---|---|
Bearing in elevation / DEC: | 2 ball bearings |
Colour: | white |
Finderscope: | 8 x 50 mm |
Focus Group [Telescopes]: | Advanced Amateurs, Specialists and Research, Visual enthusiasts |
Focusing system: | 2.5" Hexafoc |
Material: | Aluminium |
Material Primary mirror: | BK-7 |
Material tripod 3): | Stainless Steel |
Mount Type [Telescopes]: | German/Equatorial Mount |
Optical design: | Newtonian Reflector |
Product Family [Telescopes]: | Reflector telescope |
0 of 0 reviews
Login
Accessories
Similar products