ASMEIR Telescope Accessories Telescope D76F900 Reflector Objective + Mirror

Description

• The D76f900 reflector objective set, 76mm diameter, 900mm focal length, aluminized and protective film, is a good choice for budget DIY telescope lovers.
• Newton mirror D = 76mm F = 12
• Diameter D78mm, focal length F900mm
• Edge thickness 11mm, surface accuracy 1/6
• Clothes; Aluminum with protective film

Objective diameter: 76 mm
Viewfinder: Reflection
Focal length description: 900 mm
Type: Monocular
Waterproof rating: IPX4
Astronomical telescope 76900 reflection objective Group D76f900 reflection objective group
With a diameter of 76mm, a focal length of 900mm, aluminized and protective film, it is a good choice for budget DIY telescope lovers.
Newton mirror D = 76mm F = 12
Diameter D78mm focal length F900mm Edge thickness 11mm
Surface accuracy 1/6
Coating; Aluminum with protective film
Look out
The primary mirror is spherical and the secondary mirror is elliptical
Shape clean mirror description: first blow off the dust that can be blown away by blowing the balloon, and then gently wipe the mirror with high-quality absorbent cotton dipped in some alcohol, dry, look at the light source from the side, see if there is cotton silk or water stains on it. If you do, use some glasses to wipe gently with a good quality cloth (be careful, or it will affect your telescope).

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