summary:
All the main mirrors of the sky watcher series Newton reflective astronomical telescopes adopt paraboloid main mirrors, with sharp central image quality, which improves the problem of hypertrophic image quality at the edge of spherical mirrors and ensures that they have sharper and more delicate image quality. This series of mirrors are coated with aluminum medium and protected with silicon oxide coating to ensure durability! This series paraboloid mirror reflection and all DOB models adopt four arm central secondary mirror support (0.5mm thick) to reduce diffraction peak and reduce light loss.
Elaborate
The sky watcher 200 / 800 professional photographic reflective astronomical telescope adopts a 2-inch 1:10 toothless double speed fine focusing seat, metal high reflectivity coating, especially reinforced main mirror base, fixed optical axis is not easy to deviate, f / 4 fast focus ratio design, larger aperture and shorter focal length.
On the premise of ensuring the surrounding stars, Xinda specially developed and manufactured this 200 caliber paraboloid high-precision and high reflectivity reflective professional photographic telescope with focal ratio f / 4.
Compared with the ordinary version, the lens barrel and focusing seat are strengthened, and the optical axis will not be deformed.
2-inch 10:1 toothless dual speed fine tuning focusing seat, metal high reflectivity coating.
parameter
Details:
This model is specially designed for astronomical photography and can also be used for visual observation.
Diameter of primary mirror: 200mm
Focal length: 800mm
Optical coating: high reflection aluminum dielectric coating
Main mirror: high precision paraboloid mirror
2-inch 1:10 fine tuning toothless focusing seat, larger imaging ring and more accurate focusing!
Diameter: 200mm
Focal length: 800mm
Focal ratio: F / 4
Magnification: 320x
Limiting magnitude: 13.6
Resolution: 0.8 arc sec
Eyepiece base caliber: 2 "(1.25 inch rotatable)
Specification: 182mm x 690mm
Eyepiece: None
Star finder: 8x50
