Bresser AC 127/635 - Compact power with clear vision
Discover more in less time
The Bresser AC 127/635 Messier Hexafoc OTA is made for those who want to see big without carrying a bulky instrument. Thanks to the short tube, you enjoy wide, bright fields of view - perfect for admiring the Andromeda Nebula or Orion in all their glory. The bright aperture lets you see deep into space, with vivid contrasts and subtle color tones that normally remain invisible.
Clear image, less vibration
The short construction of this refractor makes it not only more manageable, but also more stable. Less vibration means sharper images, even at high magnifications. This allows you to see fine details without the image dancing or blurring.
Superachromate for pure colors
This four-lens superachromatic delivers images with minimal color aberration. Even at f/5, color reproduction remains true to life, ideal for those who want to visually enjoy nebulae, star clusters or the moon. The high-quality optics ensure that every detail remains clear and sharp - whether you are viewing or photographing.
Designed for practical use
With its low weight, robust tube and Hexafoc focuser, the Bresser AC 127/635 is easy to handle. The 2″ focuser allows room for larger eyepieces, so you get the most out of your observations. You quickly grab it outside, focus and are ready for the night show.
What to expect
✓ Moon: sharp and high-contrast
✓ Planets: clear image with lots of detail
✓ Nebulae & galaxies: high light output for deep objects
✗ Astrophotography: limited by f/5 system
✗ Observatory use: not intended for professional level
Specifications
Optics
| Feature | Description |
|---|---|
| Design | Achromatic (Refractor) |
| Type | Refractor |
| Aperture (mm) | 127 |
| Focal length (mm) | 635 |
| Focal Ratio (f/) | 5 |
| Resolution (theoretical) | 0,91″ |
| Limit value (mag) | 12,3 |
| Light output relative to eye | 330× |
| Max. useful magnification | 254× |
| Coating | Multiple |
| Tube construction | Full tube |
| Tube length (mm) | 965 |
| Tube weight (kg) | 7,7 |
| Tube diameter (mm) | 133 |
Focuser
| Feature | Description |
|---|---|
| Design | Hexafoc |
| Ocular connection | 2″ / 1,25″ |
| Free opening (mm) | 64 |
| Camera adapter | T2 (M42 x 0.75) |
| Fine adjustment (recommended accessory) | 1:10 reduction possible |
Mount
| Feature | Description |
|---|---|
| Design | OTA (without mount) |
| Type of mount | Optical tube |
| GoTo steering | No |
| Dovetail | Vixen-style |
Included accessories
| Section | Description |
|---|---|
| Ocular | 26 mm Super Plössl (1.25″) |
| Seeker | 8×50 |
| Zenith mirror | 1.25″, 90° star diagonal |
| Eyepiece adapter | 2″ → 1,25″ |
| Dew cap | Yes |
| Tube Rings | Yes |
| Handle | Yes |
| Solar filters | Yes |
General
| Feature | Description |
|---|---|
| Series | Messier |
| Application | Moon & Planets, Nebulae & Galaxies, Sun (with filter) |
| Astrophotography | Limited suitability |
| Recommended for | Advanced |
| Observatory use | No |
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