1pcs 60mm Double Separated Multilayer Green Film Objective Lens for DIY Refracting Astronomical Telescopes(D60F600)

Description

• 60mm double separated multilayer objective lens devised specifically for DIY refracting astronomical telescopes.
• Versatile focal lengths available: 300, 360, 400, 500, 600, 700, 800, and 900 mm to suit various observational needs.
• Features all-sided green film coating for enhanced image clarity and reduced light reflection, ensuring optimal viewing experiences.
• Precision engineering with a diameter tolerance of +0/-0.12mm and focal length tolerance of 0.1% for accurate performance.
• Includes two refraction double separation objective sets, perfect for both astronomical 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.

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