1pc D150F750 Parabolic Newton Reflector Primary Mirror & 35mm Secondary Mirror - High Precision DIY Astronomy Accessory(D150F750+35mm)

Description

• Parabolic Primary Mirror with 150mm Aperture and 750mm Focal Length for superior light convergence and clarity.
• Includes a 35mm Secondary Mirror, devised for optimal performance in DIY astronomical telescope projects.
• Coated with aluminum and protective film to prevent scratches and enhance durability, ensuring long-lasting use.
• Features a center mark for easy optical calibration with eyepieces, making it user-friendly for both beginners and experienced astronomers.
• Ideal for DIY enthusiasts looking to build or upgrade their own Newtonian reflector telescopes with high precision components.

The primary mirror center mark is the core reference point of the dimming axis of the Newtonian reflector telescope, which is convenient for optical calibration of the eyepiece or machine calibration of the eyepiece dimming axis after lens installation.
Please select the main mirror, or secondary mirror, or complete accessories according to your needs
Mirror-related knowledge
The difference between spherical primary mirror and parabolic primary mirror:
Spherical mirrors inherently cannot converge the light from the edges and the center together. Therefore, in cases of large aperture and short focal ratio, it will result in loose imaging, blurred edges, and other issues.
In contrast, parabolic primary mirrors have inherent advantages. They can effectively correct aberrations, so for achieving good observation results, it is recommended to use parabolic mirror type.

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.