1pc D114F450 Parabolic Reflector Lens - High Precision Primary & Secondary Mirrors for DIY Astronomical Telescopes(Primary+Secondary Mirror)

Used:Cleaning the mirror surface: first blow off the dust that can be blown off with a blown balloon, then use a good 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 mirror cloth (be careful, otherwise it will affect your telescope).

• Upgrade your DIY telescope with the D114F450 Parabolic Reflector Lens, featuring a 114mm caliber and 450mm focal length for enhanced viewing experiences.
• Crafted with 1/6 λ accuracy, our high precision primary mirror provides exceptional clarity and detail for astronomy enthusiasts and professionals alike.
• Includes a 35mm secondary mirror option, allowing you to customize your telescope setup according to your specific needs and preferences.
• The lens surface is coated with aluminum and protective film, ensuring durability and optimal performance in various observing conditions.
• Easy maintenance: Clean your mirrors effectively with our recommended cleaning method to maintain peak performance and clarity for your astronomical observations.