More products from the brand :Sky-Watcher

Sky-Watcher Quattro-250P (f/4)

CHF 889

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Sky-Watcher Quattro 250P Imaging Newtonian - Astrographic telescope 254 mm f/4

Visit Sky-Watcher Quattro 250P Imaging Newtonian is a 10-inch (254 mm) Newtonian telescope designed for theโ€™fast, high-performance astrophotography. With its f/4 focal ratio and its oversized secondary mirror, it guarantees ideal coverage of modern full-format DSLR sensors and CCD cameras. It's a powerful, affordable solution for deep-sky photographers.

A high-performance astrograph for your most ambitious images

Thanks to its 1000 mm focal length With its 254 mm aperture, the Quattro 250P allows short exposures while capturing maximum light. Its borosilicate parabolic mirror is covered with the exclusive Radiantโ„ข Aluminum Quartzโ„ข (RAQโ„ข), offering a reflectivity of 94% for exceptional light output.

The tube is made of rolled steel and coated with a Black Diamondยซ metallic finishยป, This is an elegant yet robust design. The whole is completed by a focuser Crayford 2โ€ณ double speed (10:1), precise and fluid, ideal for fine-tuning photography.

Technical specifications - Quattro 250P

Optical data
Lens type Newtonian parabolic reflector
Opening 254 mm
Focal length 1000 mm
Focus report f/4
Glass type Borosilicate
Mirror coating Radiantโ„ข Aluminum Quartzโ„ข (RAQโ„ข) - 94% Reflectivity
Secondary diameter 89 mm (obstruction 35%)
Surface obstruction 12%
Separating power (Dawes) 0,46โ€ณ
Rayleigh limit 0,55โ€ณ
Magnitude limit 14,5
Min./max. useful magnification. 36ร— / 500ร—
Light gain vs. 200 mm +57%

 

Accessories and dimensions
Focuser Crayford 2โ€ณ double speed (10:1)
Researcher 9ร—50 optical
Adapters 1.25โ€ณ and 2โ€ณ
Eyepieces included None (designed for photography)
Coma corrector Not included (optional)
Rings and mounting bar Vixen rings and dovetail included
Tube length 92.7 cm (36.5โ€ณ)
Tube outer diameter 289 mm (11,375โ€ณ)
Weight with accessories 16.5 kg

Why choose the Quattro 250P?

  • Fast f/4 ratio for shorter exposure times and a better signal-to-noise ratio
  • Large secondary mirror for full illumination of full-format sensors
  • Black Diamond finish robust and professional
  • Compatible with EQ6 / EQ8 / AM5 frames
  • Possible developments with coma corrector for a perfectly corrected field

An affordable professional tube for demanding astrophotographers

Visit Sky-Watcher Quattro 250P Imaging Newtonian combines power, speed and affordability. It's a strategic choice for enthusiasts wishing to move into advanced imaging with a large-diameter instrument, without compromising on optical quality. It is also ideally suited to wide-field, high-resolution visual use.

Order now your Quattro 250P in our specialist store - including fast delivery, technical support and personal assistance.

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