1pc 60mm Double Separated Multilayer Green Film Objective Lens for DIY Refracting Astronomical Telescopes(D60F360)

Description

• 60mm double separated multilayer objective lens devised for DIY refracting astronomical telescopes.
• Versatile focal lengths available (300, 360, 400, 500, 600, 700, 800, 900 mm) to suit various astronomical viewing needs.
• Features an all-sided green film coating for enhanced light transmission and improved image (1/4-1/8).
• Precision engineering with diameter tolerance of +0/-0.12mm and focal length tolerance of 0.1% for optimal performance.
• Includes two refraction double separation objective sets, perfect for both telescope objectives and star finders.

Refractive astronomical telescope objective lens D=60mm
Diameter: 62mm
The focal length F: 300,360,400,500,600,700,800,900 mm Optional
Coating: All-sided green film
Combined image :1/4-1/8
Diameter tolerance :+0/ -0.12mm
Center thickness tolerance :0.2mm
Focal length tolerance :0.1%
Finish :60/40
Eccentric :1'
Note: two refraction double separation objective sets; Used for astronomical telescope objective and star finder.

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.