The Sky-Watcher EXPLORER-250PDS Newtonian Reflector incorporates the same superb mirror-set as the Explorer-250P Black Diamond Series, but with two significant advantages. A Dual-Speed 10:1 ratio focuser is now included for excellent focusing precision. Also the tube length has been slightly shortened to optimise performance for prime-focus photography. Even better performance for astro-photography and visual use can be achieved when used in combination with Sky-Watchers Newtonian coma corrector (SKY-20233).
Delivery:
- 250mm Newton Telescope
- 2" 1:10-focuser with 1¼" adapter
- 28mm eyepiece 2" LET
- 9x50 finder
Products specifications
| Type of telescope | Newton | 
| Focuser | 2" Crayford focuser with micro focusing 1:10 | 
| Aperture | 254 mm | 
| Focal length | 1200 mm | 
| Connection to eyepiece | 2" | 
| Tube weight | 29.7 lb with Tuberings | 
| Secondary mirror support | 0.5 mm ultra thin mirror supports | 
| Eyepieces | 2" 28mm LET | 
| Focal ratio | f/4.7 | 
| Max. useful visual power | 508 x | 
| Viewfinder | 9 x 50 |