--- product_id: 671422660 title: "Optical Glass Objective Lens Concave&Convex Lens for DIY Astronomical Telescope 80mm" brand: "caume" price: "S$102" currency: SGD in_stock: true category: "Caume" url: https://www.desertcart.sg/products/671422660-optical-glass-objective-lens-concave-and-convex-lens-for-diy store_origin: SG region: Singapore --- # F7.5 focal ratio for sharp, high-contrast imaging 80mm aperture for crisp celestial views Apochromatic double-separation optics for minimal chromatic aberration Optical Glass Objective Lens Concave&Convex Lens for DIY Astronomical Telescope 80mm **Brand:** caume **Price:** S$102 **Availability:** ✅ In Stock ## Summary > 🔭 Unlock the universe with precision optics that put the stars within your reach! ## Quick Answers - **What is this?** Optical Glass Objective Lens Concave&Convex Lens for DIY Astronomical Telescope 80mm by caume - **How much does it cost?** S$102 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/671422660-optical-glass-objective-lens-concave-and-convex-lens-for-diy) ## Best For - caume enthusiasts ## Why This Product - Trusted caume brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Compatibility:** Works seamlessly with cameras, smartphones, and laptops via T Mount, expanding your astrophotography possibilities. - • **Crystal-Clear Cosmic Clarity:** Apochromatic double-separation lenses eliminate color fringing for stunningly sharp images. - • **Durability Meets Performance:** Advanced optical bonding prevents yellowing and edge peeling, ensuring long-lasting clarity and reliability. - • **Optimized for DIY Stargazers:** Designed specifically for DIY astronomical telescopes, empowering your personal space exploration journey. - • **Precision-Paired for Perfection:** Each lens set is rigorously tested and matched to guarantee consistent, high-quality imaging every time. ## Overview The CAUME 80mm Optical Glass Objective Lens features an 83mm diameter and F7.5 focal ratio with apochromatic double-separation optical design, delivering high-resolution, low-dispersion images ideal for DIY astronomical telescopes and parallel light pipeline testing. Each lens is precision-paired and tested to ensure consistent sharpness and durability, compatible with T Mount devices including cameras and smartphones. ## Description desertcart.com : Optical Glass Objective Lens Concave&Convex Lens for DIY Astronomical Telescope 80mm : Electronics ## Features - Model:80mm, Diameter:83mm, Focus:600, Focusratio:F7.5, Film:Green - The objective lenses are all equipped with apochromatic double-separation optical structure, and the two-piece apochromatic lenses have better compatibility with the bonded ones, resulting in high imaging sharpness with no worry about the aging of the photosensitive glue in the large-diameter objective lenses that may cause yellowing and edge peeling over time. - The objective lenses are tested and paired for imaging quality through a parallel light pipeline and dividing plate, ensuring that each set of objective lenses delivers consistent imaging performance. - High-resolution, low-dispersion objective lenses are the best choice for various applications such as telescope objective lenses and parallel light pipeline production testing instruments. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CMZGQHLV | | Best Sellers Rank | #152 in Microscope Lenses | | Brand | CAUME | | Camera Lens | The CAUME 80mm Optical Glass Objective Lens is a fixed-focus, prime telephoto lens designed for DIY astronomical telescopes and parallel light pipeline testing instruments. With a diameter of 83mm and a focal length of 80mm (F7.5), it features an apochromatic double-separation optical structure that ensures high imaging sharpness and minimizes chromatic aberration. The lens is tested and paired fo… | | Camera Lens Description | The CAUME 80mm Optical Glass Objective Lens is a fixed-focus, prime telephoto lens designed for DIY astronomical telescopes and parallel light pipeline testing instruments. With a diameter of 83mm and a focal length of 80mm (F7.5), it features an apochromatic double-separation optical structure that ensures high imaging sharpness and minimizes chromatic aberration. The lens is tested and paired for consistent performance, offering low dispersion and high resolution. It lacks autofocus and optical image stabilization but is ideal for applications requiring precise, stable optical clarity without concerns about glue aging or yellowing over time. Camera Lens Description The CAUME 80mm Optical Glass Objective Lens is a fixed-focus, prime telephoto lens designed for DIY astronomical telescopes and parallel light pipeline testing instruments. With a diameter of 83mm and a focal length of 80mm (F7.5), it features an apochromatic double-separation optical structure that ensures high imaging sharpness and minimizes chromatic aberration. The lens is tested and paired for consistent performance, offering low dispersion and high resolution. It lacks autofocus and optical image stabilization but is ideal for applications requiring precise, stable optical clarity without concerns about glue aging or yellowing over time. See more | | Compatible Camera Mount | T Mount | | Compatible Devices | Camera, Smartphone, Laptop | | Compatible Mountings | T Mount | | Focal Length Description | 80.0 millimeters | | Focus Type | Fixed Focus | | Image stabilization | Optical | | Lens | Telephoto | | Lens Design | Prime | | Lens Type | Telephoto | | Manufacturer | CAUME | | Manufacturer Part Number | TianWen11WYJ04 | | Maximum Aperture | 7.5 f_stop | | Maximum Focal Length | 8 centimeters | | Minimum Focal Length | 8 centimeters | | Model Name | 80mm | | Number of Items | 1 | | Screen Size | 8 centimeters | | UPC | 764015311451 | | Unit Count | 1 Count | ## Product Details - **Brand:** CAUME - **Compatible Mountings:** T Mount - **Focal Length Description:** 80.0 millimeters - **Lens Type:** Telephoto ## Images ![Optical Glass Objective Lens Concave&Convex Lens for DIY Astronomical Telescope 80mm - Image 1](https://m.media-amazon.com/images/I/51PswirEGLL.jpg) ![Optical Glass Objective Lens Concave&Convex Lens for DIY Astronomical Telescope 80mm - Image 2](https://m.media-amazon.com/images/I/51lxPd4KCUL.jpg) ![Optical Glass Objective Lens Concave&Convex Lens for DIY Astronomical Telescope 80mm - Image 3](https://m.media-amazon.com/images/I/51HK5xSC-7L.jpg) ## Available Options This product comes in different **Size** options. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sg/products/671422660-optical-glass-objective-lens-concave-and-convex-lens-for-diy](https://www.desertcart.sg/products/671422660-optical-glass-objective-lens-concave-and-convex-lens-for-diy) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-09-20*