CYZW D76F900mm Astronomical Telescope Accessories DIY Telescope Spherical Concave Mirror Lens Optical Spherical Glass (Primary Mirror + Secondary Mirror Set)

Description

• For DIY Telescope Spherical Concave Mirror D76F900mm Optical Spherical Glass
• D76F900 Reflecting Objective Set, The Main Mirror is Spherical
• Caliber 76mm, Focal Length 900mm,
• The secondary mirror is 20 mm short axis elliptical plane, aluminum plated and protective film.
• Pack include:Primary Mirror + Secondary Mirror Set

Used:Cleaning the mirror surface: first blow off the dust that can be blown off with a blown balloon,
then use a good quality absorbent cotton to dip the alcohol and gently wipe the mirror.
After drying, look at the light source from the side to see if there is some cotton or Keep the water stains on top, and if necessary, gently wipe them with some good quality mirror cloth (be careful, otherwise it will affect your telescope)

Shipping and Returns

• We offer tracked shipping on all orders. Tracking information will be shared as soon as the order is dispatched.
• Please check the delivery estimate before adding a product to the cart. This is displayed for every product on the website.
• Available shipping methods and charges will be displayed at the time of checkout, depending on your exact location.
• All customers are entitled to a return window of 14 days, starting from the date of delivery of the product(s).
• Customers are advised to read our return policy for details of the return process, eligibility, refunds as well as cancellations or exchanges.
• In case of any issues or concerns about Shipping or Returns, please contact us and we will be happy to help.