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telescopes

Sky-Watcher Quattro 250 ST - 250mm Reflector Telescope OTA - 30215.3

Sky-Watcher   ——   SKU: SKY-30215.3
old price $1,137.00 – 10% savings
$1,023.00 CAD
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About the Sky-Watcher Quattro 250 ST - 250mm Reflector Telescope...

A fast focal ratio like the one found on the Sky-Watcher 250 ST is especially important for astrophotography dealing with long exposure times. Imaging telescopes made of less thermally stable material can deviate from optimum focus after long time exposures. It can remain in focus for a longer period of time and long exposure images will stay clear and in focus. Sky-Watcher Telescope tube interiors are equipped with knife-edge ray traced baffles.

 

The new linear power focuser on the Sky-Watcher 250 ST utilises 4 precision ball bearings to support the drawtube and provide great stability and zero image shift while supporting a heavy Sky-Watcher Telescope Eyepiece or camera. Moving the drawtube by the roller rather than a rack and pinion ensures exceptionally smooth operation, great feel and precise adjustability. The Sky-Watcher Telescope dual-speed feature has a second focus knob that has a 10:1 speed reduction to provide the super-fine adjustments even the most demanding users can appreciate. Combine with a Sky-Watcher Mount for excellence in astrophotography.

 

Sky-Watcher 250 ST features paraboloidal primary mirrors made of low thermal expansion Pyrex glass resulting in substantially shorter cooling-down times. It comes with a impressive 0.5 mm Ultra-Thin Secondary Mirror Supports and it offers 56% more Light-Gathering than the Sky-Watcher Telescope 200mm.

 

Don''t forget, we carry plenty of Sky-Watcher Accessories, too! Look for Sky-Watcher Telescope Eyepieces and Sky-Watcher Telescope Filters for visual observers! Astrophotography buffs will appreciate Sky-Watcher Photo Adapters and the Sky-Watcher SynGuider!

 

 

Sky-Watcher Quattro 250 ST - 250mm Reflector Telescope Features...

 

  • Tube interiors are equipped with knife-edge ray traced baffles

     

     

  • Dual-speed feature has a second focus knob that has a 10:1 speed reduction to provide the super-fine adjustments

     

     

  • Features paraboloidal primary mirrors made of low thermal expansion Pyrex glass resulting in substantially shorter cooling-down times

     

     

  • It comes with a impressive 0.5 mm Ultra-Thin Secondary Mirror Supports

     

     

  • Utilises 4 precision ball bearings to support the drawtube and provide great stability and zero image shift while supporting a heavy eyepiece or camera

 

 

Sky-Watcher Quattro 250 ST - 250mm Reflector Telescope Specifications...

Optical Design: Reflector

Diameter: 254

Focal Length: 1000mm

F/Ratio: f/4

Highest Practical Power: 508x

Finder Scope: 8x50

Focuser Diameter: 2" (50.8mm) Dual-Speed 10:1 Linear Power Focuser

Shipping Dimensions: 106x48x48 cm3

SkyWatcher Product Number: 30215.3