1pc D40 Achromatic Objective Lens for DIY Refractive Astronomical Telescope - 40mm Diameter, 205mm Focal Length(46F135 Green Film AR0908)

Description

• Achromatic objective lens devised for self-made refractive astronomical telescopes, ensuring clear and sharp images.
• Features a 40mm actual diameter and a 205mm focal length, perfect for amateur astronomers seeking to enhance their telescope performance.
• Coated with adhesive blue film for improved light transmission and reduced glare, enhancing your stargazing experience.
• Easy to assemble with clear instructions; simply orient the thin side of the lens towards the scene for optimal viewing.
• Compatible with various telescope models, making it a versatile addition to your astronomy toolkit.

Assembly precautions: Assembly direction, the thin side of the lens towards the direction of the scene and the thick lens towards the direction of the mirror tube.
1 Pcs/Package

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