OPTIMISED FOR PRIME FOCUS ASTRO-PHOTOGRAPHY

 

 

The new 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-Watcher’s Newtonian coma corrector (SW20233).

 

 

Standard Specification:

• Magnifications (with eyepieces supplied) x43
• Highest Practical Power (Potential) x500
• Diameter of Primary Mirror 254mm
• Telescope Focal Length 1200mm (f/4.7)
• Eyepieces Supplied 28mm LET (2"/50.8mm)
• 9x50 Finderscope
• Parabolic Primary Mirror
• 2" (50.8mm) Dual-Speed 10:1 Crayford Focuser
• 0.5mm Ultra-Thin Secondary Mirror Supports
• 56% more Light-Gathering than 200mm