Bresser AC 90/500 - Compact power with large field of view
The Bresser AC 90/500 is an ideal telescope for anyone who wants to enjoy wide and clear views of the night sky. With its large aperture of 90 mm, it captures a surprising amount of light, allowing star clusters and nebulae to be clearly visible. The short focal length of 500 mm provides a wide field of view - perfect for exploring the Milky Way or open star clusters.

Light, portable and ready to use immediately
The AC 90/500 is compact and easy to carry. Within minutes, it is ready to use. Thanks to the included EQ-3 mount, you can smoothly track what you're viewing, keeping objects beautifully in focus. The slow-motion buttons give you control over every move, without vibration.
For beginners and curious explorers alike
You don't need any experience to get started with this telescope. Everything you need is in the box: a 26 mm eyepiece, 6×30 viewfinder and a 90° zenith prism. Point it at the moon and you'll immediately see sharp craters and mountain ranges. Or move to an open cluster of stars and experience the depth of space with bright contrast.

Sturdy mount for stable images
The robust EQ-3 mount provides stability while observing. Counterweights keep the telescope balanced, which is especially useful at higher magnifications. The aluminum tripod is height adjustable and sturdy enough for hours of observation.
What to expect
✓ Moon: detailed craters, shadows and edges.
✓ Planets: bright discs and clear contrasts.
✓ Deep-sky: open star clusters and bright nebulae visible in dark skies.
✓ Ease of use: lightweight, portable and ready to use within minutes.
✗ Sun: safe to use only with a special sunscreen.
✗ Astrophotography: limited, mainly focused on visual observation.
Specifications
Optics
| Feature | Description |
|---|---|
| Design | Achromat (refractor) |
| Type | Refractor |
| Aperture (mm) | 90 |
| Focal length (mm) | 500 |
| Focal Ratio (f/) | 5,5 |
| Resolution (theoretical) | 1,28″ |
| Limit value (mag) | 11,6 |
| Light output relative to eye | 170× |
| Max. useful magnification | 180× |
| Tube material | Aluminum |
| Tube construction | Full tube |
Focuser
| Feature | Description |
|---|---|
| Design | Rack Focuser |
| Ocular connection | 1,25″ |
Mount
| Feature | Description |
|---|---|
| Design | EQ-3 |
| Type of mount | Equatorial |
| GoTo steering | No |
Tripod
| Feature | Description |
|---|---|
| Tripod type | Aluminum tripod |
| Accessory holder | Yes |
Included accessories
| Section | Description |
|---|---|
| Ocular | 26 mm (1.25″) |
| Seeker | 6×30 |
| Zenith mirror | 1.25″, 90° star diagonal |
| Dew cap | Yes |
| Slow motion cable | Yes |
| Dovetail | Vixen-Style |
General
| Feature | Description |
|---|---|
| Series | Messier |
| Total weight (kg) | 6,9 |
| Observation goals | Moon & Planets, Nebulae & Galaxies |
| Astrophotography | No |
| Recommended for | Beginners |
| Sun | Only with suitable sunscreen |





Reviews
There are no reviews yet.