Objective Lens， 93mm Objective Lens Focal Length 900mm Double Cemented Multi-Layer Coating Astronomical Telescope DIY Accessories,for Doublet Convex Lens(Lens)

=========High-concerned chemical : None

• Made optical glass with precision polishing, ensuring stable performance and long service life.
• This 93mm objective lens with a 900mm focal length is crafted from optical glass, featuring a cemented structure and multi-layer coating, ideal for DIY astronomical telescopes. It delivers clear imaging and stable performance.
• Adopting a cemented design with multi-layer coating, the lens effectively enhances light transmittance, reduces reflection, and ensures high clarity, avoiding color distortion during celestial observation.
• Made optical glass with fine polishing, it boasts excellent light-gathering capability, low distortion, and strong durability, perfectly matching DIY telescope assembly needs.
• With a 900mm focal length and multi-layer coated surface, it provides sharp, high-contrast images of celestial bodies, meeting the needs of amateur astronomy enthusiasts.
• As a key DIY astronomical telescope accessory, it is easy to install and match, suitable for upgrading and replacing components, supporting long-term stable use in and observation.