Bresser AC 90/1200 - Clear images, stable performance
The Bresser AC 90/1200 is a perfect telescope for anyone serious about exploring the Moon and planets.
With its long focal length, it delivers sharp, high-contrast images - even at high magnifications.
The 90 mm aperture captures more than enough light to reveal details you would never see with the naked eye.

Discover more with every look up
Look at the Moon and see craters and valleys in razor-sharp relief.
Follow the cloud bands of Jupiter and its four brightest moons.
Spot the rings of Saturn or recognize the crescent of Venus.
Even under moderate light conditions, the image remains clear and sharp, thanks to the multiple coating and fixed dew cap that blocks stray light.
User-friendly and sustainably built
The sturdy EXOS-1 equatorial mount keeps the telescope stable so you can observe vibration-free.
The smooth slow-motion cables allow you to effortlessly track objects as the earth rotates.
Want to expand later? You can easily add a motor to the RA axis.

Ready to use immediately
Everything you need is in the box: eyepiece, viewfinder, tripod and solar filter.
Within minutes you are ready to observe.
Whether in the garden or out of town - the Bresser AC 90/1200 remains reliable and easy to use.
What to expect
✓ Moon: sharp craters, mountains and shadows in detail
✓ Planets: clear cloud bands on Jupiter and rings of Saturn
✓ Deep-sky: bright nebulae and compact star clusters visible
✓ Ease of use: stable mount, easy tracking of objects
✗ Sun: safe to use only with sunscreen
✗ Astrophotography: of limited use, better for visual observation
Specifications
Optics
| Feature | Description |
|---|---|
| Type | Refractor |
| Design | Achromat |
| Aperture (mm) | 90 |
| Focal length (mm) | 1200 |
| Focal Ratio (f/) | 13,3 |
| Resolution | 1,53″ |
| Limit value (mag) | 11,6 |
| Light output | 170× |
| Max. useful magnification | 180× |
| Coating | Multiple |
| Tube material | Aluminum |
| Tube construction | Full tube |
Focuser
| Feature | Description |
|---|---|
| Design | Rack Focuser |
| Ocular connection | 1,25″ |
Mount
| Feature | Description |
|---|---|
| Design | EXOS-1 |
| Type | Equatorial |
| Carrying capacity (kg) | 7 |
| GoTo steering | No |
Tripod
| Feature | Description |
|---|---|
| Type | Tripod tripod with accessory pocket |
| Material | Steel |
| Height | 63 - 106 cm |
| Weight | 4.6 kg |
Included accessories
| Section | Description |
|---|---|
| Ocular | 26 mm (1.25″) |
| Seeker | 6×30 |
| Diagonal | 1.25″, 90° star diagonal |
| Solar filter | Includes |
| Dew cap | Yes |
| Slow-motion cables | 2 |
| Dovetail | Vixen-style |
General
| Feature | Description |
|---|---|
| Series | Messier |
| Total weight (kg) | 14,7 |
| Recommended for | Beginners |
| Application | Moon & Planets, Nebulae & Galaxies, Sun (with filter) |








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