Skywatcher AP 120/840 - Bright, clean and made for serious performance
The Skywatcher AP 120/840 is a perfect choice when you are looking for sharpness, color purity and calmness in your image. You will see an immediate difference as soon as you look through this telescope: calm stars, clear details and an image that remains tight even at high magnification. This is a telescope for those who want more than a standard entry-level telescope.

Really clear image without color errors
The Esprit series uses a triplet design with high-quality glass. That means your image stays clean, with no purple edges or distortion. You see more contrast, making fine structures stand out more clearly. This helps you tremendously when viewing planets or nebulae. You need to correct less with your eyes because the image is quiet by itself.

More light, more detail
The opening of 120 mm lets in a lot of light. As a result, objects remain bright even when you zoom in further. You can see sharp edges on the moon, fine cloud bands on Jupiter and contrast in bright nebulae. The telescope works intuitively. You aim, focus and see immediate results.
Focuser that gives you control
The 3″ Linear-Power focuser is made for heavy cameras and large sensors. It keeps moving smoothly even when using accessories. You can rotate it so you can quickly find the right camera position. The fine 1:11 setting gives you control over the last millimeters of sharpness. This makes it much easier to get a perfectly sharp image, both visually and for photographs.
For visual and photography
This telescope works great for those with visual viewing as well as those who want to take pictures. You get clarity, color purity and mechanical stability all in one package. Your image remains tight even when using higher magnifications or trying longer exposures.
What we recommend
✓ Moon: excellent fit
✓ Planets: very detailed
✓ Deep-sky: bright and contrasty
✓ Astrophotography: very suitable
✗ Earth observation: not suitable
Specifications
Optics
| Feature | Value |
|---|---|
| Type | Refractor |
| Design | Apochromat |
| Aperture (mm) | 120 |
| Focal length (mm) | 840 |
| Aperture ratio (f/) | 7 |
| Resolution | 0,96 |
| Limit value (mag) | 12,2 |
| Light output | 290 |
| Max. useful magnification | 240 |
| Tube weight (kg) | 9,61 |
| Tube material | Aluminum |
| Tube construction | Full tube |
| Lens design | Triplet |
Focuser
| Feature | Value |
|---|---|
| Design | Linear Crayford |
| Ocular connection | 3″ |
| Reduction | 1:11 fine focusing |
| Connection (camera side) | M74 |
Mount
| Feature | Value |
|---|---|
| Design | OTA |
| Type of mount | Without mount |
| GoTo steering | No |
Included accessories
| Section | Description |
|---|---|
| Ocular | LET 28 mm |
| Seeker | 9×50 |
| Star Diagonal | 2″, 90° |
| Tube Rings | Yes |
| Dovetail | Losmandy-Style |
General
| Feature | Value |
|---|---|
| Series | ESPRIT |
| Total weight (kg) | 12,13 |
Application
| Feature | Value |
|---|---|
| Moon & Planets | Yes |
| Nebulae & galaxies | Yes |
| Nature observation | Yes |
| Astrophotography | Yes |
| Sun | Not recommended (only with appropriate sunscreens) |
| Recommended for | Advanced |










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