Περιγραφή
Skywatcher offers a wide range of Newtonian telescopes under the Explorer label. The telescopes are available individually or in combination with a variety of mounts.
BD as in “black diamond”: the Explorer BD series of telescopes are very popular with amateur astronomers because they offer high-quality parabolic optics at a very reasonable price. Many amateur astronomers started with an Explorer BD, and many have remained true to their Newtonian to this day.
The Explorer PDS offer the same mirror optics, but are optimised for astrophotography: a more favourable focal position, thinner secondary mirror support and a focuser with gear reduction for focus adjustment.
The N 130 / 650 telescope:
This telescope is a good starting point for new amateur astronomers. With 30% more light gathering capacity than a 114mm telescope, even more fascinating celestial objects can be observed by amateur astronomer newbies. The 130mm aperture and 650 mm focal length high-performance optics allow you to observe many nebulae and other DSOs. With an f5 aperture ratio, the telescope is also ideal for wide field observing. Breathtakingly beautiful Open clusters are well worth seeking out too. Its short length means that the telescope is very stable, even on smaller mounts, with vibrations damping down very quickly. The external design can also be considered a real gem, boasting an elegant design of the highest calibre.
The advantages in a nutshell:
- 344X light gathering power
- vibration resistant and wind insensitive due to compact design
- highly portable and quickly assembled
Included in delivery:
- tube with optics
- focuser
- eyepieces
- finder
The PDS version of the Explorer comes with a dual speed focuser. This has a 1:10 reduction ratio for sensitive focusing which is most important for astrophotography, but is also very useful for visual observing. The tube length has been slightly shortened compared to the Explorer P version and the secondary mirror has consequently been enlarged in order to further optimize the system for astrophotography.
The difference to a normal 130mm Newtonian telescope:
- better focuser: most 130mm Newtonian telescopes only have a basic 1.25″ rack-and-pinion focuser.
- sufficient focus travel for astrophotography: ordinary Newtonian telescopes have only very short back focus
Advantages and scope of delivery with this PDS telescope:
- OTA with130mm aperture and 650mm focal length
- 6×30 finder scope
- 2″, 28mm eyepiece
- parabolic 130mm mirror
- 2″ Crayford focuser with 1:10 reduction ratio
- easy adaption to cameras
- T-2 thread provided
- tube ring clamps and dovetail rail
- thin secondary mirror vanes for higher contrast
