Bresser N 203/800 - Messier NT203S Hexafoc EXOS-2
Fast, powerful and ready for astrophotography
The Bresser N 203/800 is made for anyone who wants to take the step from visual observation to true astrophotography. With its large 203 mm mirror, it captures a lot of light, so you can capture even faint deep-sky objects clearly. Its short focal length of 800 mm and fast f/3.9 ratio make it ideal for deeper images with shorter exposure times. So you get razor-sharp, high-contrast shots without long holding times.
Clear image, down to the smallest details
The parabolic primary mirror provides a flat, sharp image without distortion. The large capture mirror fully illuminates the field of view, so your images are evenly exposed - from edge to edge. Perfect for those who want to capture the fine structures in nebulae, star clusters and galaxy segments.
Hexafoc focuser for maximum precision
The 2.5” Hexafoc focuser is robust and smooth to use. The wide 64 mm aperture prevents vignetting, which is essential in large-format cameras. The optional 1:10 fine adjustment makes focusing easy, even at high magnifications or long firing times.
EXOS-2 mount - stable and reliable
The sturdy EXOS-2 mount is built for stability. Thanks to dual ball bearings and precise axis adjustment, it moves smoothly so you track objects easily. Add motors later for automatic tracking or photography. The steel tripod keeps everything stable, even in heavier setups.
Smart design, delivered ready to use
The tube rings, handle and Vixen swallowtail make mounting easy. The included 8×50 viewfinder helps you find your target quickly, while the SP 26 mm eyepiece is immediately observation-ready. This is a telescope that grows with your experience - from beginner to photographer.
What to expect
✓ Moon: sharp craters, mountains and shadows
✓ Planets: vivid details and contrast
✓ Deep-sky: nebulae, star clusters and galaxy structures clearly visible
✓ Astrophotography: excellent base with short exposure times
✗ Sun: only with suitable sunscreen
✗ Earth Observation: not intended for daylight use
Specifications
Optics
| Feature | Description |
|---|---|
| Type | Reflector |
| Design | Newton |
| Aperture (mm) | 203 |
| Focal length (mm) | 800 |
| Aperture ratio (f/) | 3,9 |
| Resolution | 0,57″ |
| Limit value (mag) | 13,3 |
| Light output | 840× |
| Max. useful magnification | 406× |
| Tube material | Aluminum |
| Tube length (mm) | 700 |
| Tube weight (kg) | 8,7 |
Focuser
| Feature | Description |
|---|---|
| Design | Hexafoc |
| Ocular connection | 2″ / 1,25″ |
| Free opening (mm) | 64 |
| Camera side connection | T2 |
| Fine adjustment | Optional 1:10 |
| Backfocus (mm) | 60 |
Mount
| Feature | Description |
|---|---|
| Type | Equatorial |
| Design | EXOS-2 |
| Carrying capacity (kg) | 13 |
| GoTo steering | No |
| Motors | Optional |
| Mounting saddle | Vixen-style |
Tripod
| Feature | Description |
|---|---|
| Type | Steel |
| Height (cm) | 108 |
| Weight (kg) | 4,9 |
| Accessory holder | Yes |
Included accessories
| Section | Description |
|---|---|
| Ocular | 26 mm Super Plössl (1.25″) |
| Seeker | 8×50 |
| Eyepiece adapter | 2″ → 1,25″ |
| Tube Rings | Yes (Vixen-style) |
| Handle | Yes |
| Pole finder | Yes |
| Counterweights | 2 × 4.9 kg |
| Solar filter | Yes |
General
| Feature | Description |
|---|---|
| Series | Messier |
| Application | Moon & Planets, Nebulae & Galaxies, Astrophotography |
| Sun | With sunscreen only |
| Recommended for | Beginners |
| Observatory use | No |
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