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Description:
The primary mirrors of all Star-Watcher series of Newtonian reflection telescopes all use parabolic primary mirrors with sharp central image quality, which improves the problem of hypertrophy of the spherical mirror edge image quality and ensures that they have sharper and more delicate image quality. The mirrors of this series are all coated with aluminum dielectric and protected with a silicon oxide coating to ensure durability! This series of parabolic mirror reflectors and all DOB models use a four-arm central secondary mirror support (0.5 mm thick) to reduce diffraction peaks and light loss.
detailed:
This model is specially tailored for astrophotography and can also be used for visual observation.
The main lens diameter: 150mm
Focal length: 750mm
Optical coating: high reflective aluminum dielectric coating
Primary mirror: high-precision parabolic mirror
(double speed)
2 inches 1:10 fine-tuning gearless focusing seat, larger image circle, more precise focusing!
parameter:
Optical Design: Parabolic Newtonian Reflective
Diameter: 150mm
Focal length: 750mm
Focal Ratio: f/5
Maximum magnification: 300x
Limit magnitude: 13
Resolution: 0.8 arc seconds
Focusing seat: 2 inch two-speed (can turn 1.25 inches)
Dimensions: 182mm x 690mm
Eyepiece: LET28mm
Finder: 6x30
Weight: 7KG
