Bresser AC 90/500 - Compact widescreen telescope with stable EXOS-2 mount
The Bresser AC 90/500 Messier with EXOS-2 mount is made for those who want to explore the night sky wide and clear. With a 90 mm aperture, it captures more than enough light to beautifully display star clusters, nebulae and the Milky Way. The short focal length of 500 mm gives you a wide field of view, so you catch more sky in one glance - ideal for exploration and learning to navigate among the stars.

The images are sharp and high-contrast, perfect for beginners and advanced users looking for a light, fast telescope. Point it at the moon and enjoy sharp craters and deep shadows. Or view Saturn's rings and Jupiter's cloud bands with surprising detail.
The EXOS-2 mount takes this telescope to the next level. It is sturdy, precise and built to minimize vibration, so your image remains stable - even at high magnifications. Thanks to radial bearings, the telescope moves smoothly and you can track objects easily. Add a tracking motor later if you want to start simple astrophotography.

The aluminum tube is light but sturdy, and the included accessories get you started right away. Within minutes, you'll be outside with a fully equipped telescope ready for stargazing.
What to expect
✓ Moon: detailed craters and mountains in high contrast.
✓ Planets: cloud bands, rings and polar caps clearly visible.
✓ Deep-sky: open star clusters and bright nebulae in their full glory.
✓ Ease of use: quick set up, stable image and intuitive operation.
✗ Astrophotography: limited without motor upgrade.
✗ Sun: safe to use only with an appropriate sunscreen.
Specifications
Optics
| Feature | Description |
|---|---|
| Design | Achromat (refractor) |
| Type | Refractor |
| Aperture (mm) | 90 |
| Focal length (mm) | 500 |
| Focal Ratio (f/) | 5,5 |
| Resolution (arcsec) | 1,28 |
| Boundary magnitude | 11,6 |
| Light output | 170× relative to the human eye |
| Max. useful magnification | 180× |
| Tube material | Aluminum |
| Tube weight (kg) | 1,9 |
Focuser
| Feature | Description |
|---|---|
| Design | Rack Focuser |
| Ocular connection | 1,25″ |
Mount
| Feature | Description |
|---|---|
| Type | Equatorial |
| Design | EXOS-2 |
| Carrying capacity | 13 kg |
| GoTo control | No |
Tripod
| Feature | Description |
|---|---|
| Type | Steel tripod with accessory holder |
| Weight (kg) | 4,9 |
| Max. height (cm) | 108 |
Included accessories
| Section | Description |
|---|---|
| Ocular | 26 mm Super Plössl (1.25″) |
| Seeker | 6×30 |
| Zenith mirror | 90° star diagonal (1.25″) |
| Dew cap | Yes |
| Slow motion cable | Yes |
| Dovetail | Vixen-style |
| Pole finder | Yes |
General
| Feature | Description |
|---|---|
| Series | Messier |
| Total weight (kg) | 12,9 |
| Observation goals | Moon & Planets, Nebulae & Galaxies |
| Astrophotography | Limited, with engine upgrade |
| Recommended for | Beginners |





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