D80 80mm Astronomical Telescope Achromatic Objective Lens with Double Separation devise for Optical Experiments(D80F700)

80mm Achromatic Objective Lens: devised for superior optical performance in astronomical observations and experiments. Double Separation devise: Composed of two lenses and a spacer, ensuring minimal chromatic aberration and enhanced image clarity. Versatile Focal Length Options: Available in both 700mm and 800mm focal lengths, suitable for various astronomical viewing needs. Durable Construction: Made with refractive glass and single layer blue film, providing durability and excellent light transmission. Package Includes: One objective lens (note: images are for reference only; scratches are due to shooting angle and lighting, not lens defects).