The Sky-Watcher Explorer-150P OTA is a versatile Newtonian reflector with a 150 mm aperture and 750 mm focal length. Its parabolic primary mirror gathers substantially more light than a small beginner tube, making it suitable for detailed views of the Moon and planets as well as star clusters, nebulae and galaxies. With an f/5 focal ratio, it combines a wide field of view with a compact focal length for flexible visual observing and introductory astrophotography.
The parabolic primary mirror provides accurate imaging. Both mirrors feature the RAQ™ (Radiant Aluminium Quartz) coating, which the manufacturer rates at up to 94% reflectivity and describes as durable protection. Four exceptionally thin 0.5 mm secondary-mirror supports hold the diagonal mirror and reduce diffraction spikes around bright stars. The 2-inch focuser accepts compatible 2-inch accessories; the supplied eyepieces are 1.25-inch.
The package is equipped for a quick start. The included 20 mm and 10 mm eyepieces, used with the supplied 2× Barlow lens, provide magnifications of 37.5×, 75× and 150×. A 6×30 finder with crosshairs helps locate objects. The universal smartphone holder attaches compatible phones to an eyepiece. A camera adapter on the Barlow lens and the manufacturer-stated direct DSLR connection offer entry-level imaging options. Tube rings and a Vixen-style dovetail rail are provided for mounting.
Please note: This is an OTA package: the optical telescope tube and the accessories listed below. A mount and tripod are not included and must be selected separately. Solar observing requires a suitable, securely fitted front-aperture solar filter; it is not included.
| Specification | Details |
|---|---|
| Optical design | Newtonian reflector, optical tube assembly (OTA) |
| Aperture | 150 mm |
| Focal length | 750 mm |
| Focal ratio | f/5 |
| Primary mirror | Parabolic |
| Mirror coating | RAQ™ Radiant Aluminium Quartz, up to 94% per manufacturer |
| Secondary supports | 4 vanes, 0.5 mm |
| Focuser | 2 inch |
| Included eyepieces | 20 mm and 10 mm, 1.25 inch |
| Barlow lens | 2×, 1.25 inch, with camera adapter |
| Magnifications with supplied accessories | 37.5×, 75× and 150× |
| Highest useful magnification | 300× (manufacturer specification; conditions and target matter) |
| Finder | 6×30 with crosshairs and bracket |
| Smartphone holder | Universal, for devices 54–90 mm wide |
| Camera connection | Direct DSLR connection stated by manufacturer; Barlow with camera adapter also included |
| Tube weight | 5.3 kg |
| Shipping weight | 8.7 kg |
| Shipping dimensions | 80 × 40 × 35 cm |
| Mount and tripod | Not included |
Included: Sky-Watcher Explorer-150P 150 mm Newtonian tube, 6×30 finder and bracket, 10 mm and 20 mm eyepieces, 2× Barlow lens with camera adapter, smartphone holder, tube rings and Vixen-style dovetail rail.
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