1pc D40 Achromatic Objective Lens for DIY Refractive Astronomy Telescopes - 40mm D, 205mm Focal Length(46F600 Green Film AR0909)

Description

• D40 achromatic objective lens devised for self-made refractive astronomical telescopes, ensuring clear and sharp images.
• Features a 40mm actual diameter and 205mm focal length, perfect for enhancing your telescope's performance and viewing experience.
• Coated with an adhesive blue film for improved light transmission and reduced chromatic aberration, providing superior image .
• Easy to assemble with clear instructions; ensure the thin side of the lens faces the scene for optimal results.
• Ideal for astronomy enthusiasts and DIY telescope builders looking to upgrade their equipment with premium optical components.

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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