1pcs Astronomical Telescope Refractor Objective Lens - Double Separation Achromatic Lens for DIY Optical Experiments(D80F900:Multi-Film Green Film)

Description

• D80 F900 objective lens with an 80mm aperture and 900mm focal length, perfect for enhancing your astronomical telescope experience.
• Features a double separation devise with two lenses and a spacer, ensuring superior image and reduced chromatic aberration.
• Coated with a single layer blue film and a multi-layer green film to improve light transmission and enhance clarity for detailed observations.
• Ideal for use in educational , science labs, and by astronomy enthusiasts looking to build or upgrade their telescopes.
• Package includes one objective lens; please note that any visible scratches in images are due to shooting angle and lighting, not lens defects.

Package includes: 1 (Note that the picture is for reference only, the scratches shown in the picture is not a lens defect, but only the impact of shooting angle and light.)
Astronomical telescope optical system: refraction
Astronomical telescope objective D80F900: aperture: 80mm focal length: 900mm
Coating: double separation single layer blue film / double separation multi-layer green film
Composition: composed of two lenses and a spacer, with double separation devise
Used as an accessory for adult astronomical telescopes, science labs, education, etc.

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