CHF 949
Available by special order — estimated delivery time: 10 days to 3 weeks
Visit Sky-Watcher EXPLORER-300PDS is a large-diameter Newton telescope designed for exceptional performance in astrophotography as in visual observation. A direct evolution of the famous Explorer-300P, this PDS (Photo Dual Speed) version incorporates major improvements that make it the instrument of choice for demanding astronomers wishing to capture images of the deep sky with great precision.
This model retains the same 305 mm parabolic primary mirror than its predecessor, guaranteeing impressive light-gathering capacity. With 44% more light than a 250 mm telescope, With its long focal length, it reveals fine details of galaxies, nebulae and star clusters. Its long focal length of 1500 mm (f/4.9) offers an excellent compromise between wide field and resolution, particularly suited to deep-sky imaging.
One of the main advantages of the EXPLORER-300PDS is its Crayford 2″ double-speed eyepiece holder (10:1 ratio). This system enables extremely precise focus adjustment, essential for astrophotography where perfect sharpness is essential. The fine gearing facilitates fine adjustments, even with high-resolution sensors.
The optical tube has been slightly shortened compared to the standard version to optimize use in primary focus shooting. This design improves compatibility with a wide range of cameras and astronomical cameras, while making it easier to reach the focus point without additional accessories.
The primary and secondary mirrors are treated Radiant™ Aluminum Quartz (RAQ™), offering up to 94% reflectivity. This coating guarantees excellent light transmission, greater durability and consistent performance over time. What's more, the secondary mirror supports are made of ultra-thin 0.5 mm handles, significantly reducing diffraction and improving image contrast.
To get the most out of this instrument, we recommend that you use a Sky-Watcher coma corrector. This accessory corrects the optical distortions typical of fast Newton telescopes (f/4.9), guaranteeing perfectly punctual stars across the entire field, an essential asset in astrophotography.
The EXPLORER-300PDS is supplied with a 28 mm LET (2″) eyepiece, with a magnification of x53.5, ideal for wide-field observations. Its theoretical maximum power reaches x610, This allows you to explore the finest details in optimal conditions. A researcher 9×50 is also included to help locate celestial objects.
The tube is supplied with sturdy clamps as well as a Losmandy-type dovetail, The telescope is compatible with heavy equatorial mounts capable of supporting this type of instrument. This telescope is particularly well suited to robust mounts for advanced astrophotography.
Powerful, precise and optimized for imaging, the Sky-Watcher EXPLORER-300PDS has established itself as a benchmark for enthusiasts wishing to take their deep-sky observation and astrophotography skills to the next level.
| Features | Detail |
|---|---|
| Telescope type | Newton Reflector |
| Mirror diameter | 305 mm |
| Focal length | 1500 mm |
| Focus report | f/4.9 |
| Magnification supplied | x53.5 |
| Maximum magnification | x610 |
| Optical treatment | RAQ™ (up to 94% reflectivity) |
| Mirror type | Parabolic |
| Lens holder | Crayford 2″ Dual-Speed 10:1 |
| Eyepiece included | 28 mm LET (2″) |
| Researcher | 9×50 |
| Secondary mirror support | Ultra-thin branches 0.5 mm |
| Mounting | Losmandy collars + dovetails |
| Optimization | Shortened tube for astrophotography |
| Brightness gain | +44% compared with 250 mm |
