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The Geoptik Formula Light 250/1250 Dobson Telescope, in the spirit of the great European Optical Tradition, is a quality instrument whose value is accurately certified by means of professional optical machinery. All parts are optically certified with grafic and photo of Ronchi, Foucault test, Reflectance, Couder & interferometer test. A low coefficient of obstruction and a minimum factor of Lambda 1/8 wavefront on the primary mirror make this telescope an outstanding professional instrument for advanced and ambitious observers of the sky.
Features
- Type: Reflector telescope
- Application range: Astrophotography, Terrestrial observation, Moon, Planets, Nebulaes, Galaxies
- Level: Intermediate, Expert
- Warranty: 5 years
- ED eyepiece 10 mm
- BK7 aluminized & SiO2 primary mirror
- 55 mm 1/10 Lambda or superior secondary mirror
- Leightweight aluminium tube
- Durable and stable Dobson wood mount
Specifications
- Optical system: Dobson reflector
- Highest practical power: 500x
- Objective lens diameter: 250 mm
- Focal length: 1250 mm
- Aperture ratio: f/5
- Mounting: Dobson
- Eyepiece diameter: 31.7 mm (1.25)
- Weight: 27.0 kg
Included Accessories
- ED eyepiece 10 mm
- 6x30 finderscope
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