1pc D40 Glued Achromatic Objective Lens - 40mm Diameter, 205mm Focal Length for DIY Refractive Telescopes(40F123 Green Film AR0859)

Description

• Achromatic objective lens devised for self-made refractive telescopes, ensuring clear and sharp images.
• Features a 40mm actual diameter and a 205mm focal length, perfect for amateur astronomers and telescope enthusiasts.
• Coated with an adhesive blue film for enhanced light transmission and reduced glare, improving your stargazing experience.
• Easy to assemble with clear instructions; simply align the thin side of the lens towards the scene for optimal performance.
• Compatible with various DIY 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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