--- product_id: 45261360 title: "20mm CO2 Laser Lens, 50.8mm Focal Length, PVD ZnSe Material, 30W-100W Compatible, For CO2 Laser Engraving & Cutting" brand: "cncoletech" price: "Β₯6491" currency: JPY in_stock: true category: "Cncoletech" url: https://www.desertcart.jp/products/45261360-20mm-co2-laser-lens-50-8mm-focal-length-pvd-znse store_origin: JP region: Japan --- # 50.8mm focal length for sharp focus Compatible with 30W-100W power range 20mm precision diameter 20mm CO2 Laser Lens, 50.8mm Focal Length, PVD ZnSe Material, 30W-100W Compatible, For CO2 Laser Engraving & Cutting **Brand:** cncoletech **Price:** Β₯6491 **Availability:** βœ… In Stock ## Summary > 🎯 Elevate your laser game with pinpoint precision and unstoppable power! ## Quick Answers - **What is this?** 20mm CO2 Laser Lens, 50.8mm Focal Length, PVD ZnSe Material, 30W-100W Compatible, For CO2 Laser Engraving & Cutting by cncoletech - **How much does it cost?** Β₯6491 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/45261360-20mm-co2-laser-lens-50-8mm-focal-length-pvd-znse) ## Best For - cncoletech enthusiasts ## Why This Product - Trusted cncoletech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Crystal-Clear Precision:** β‰₯99.5% transmittance for ultra-efficient laser energy delivery - β€’ **Powerhouse Compatibility:** Optimized for 30W-100W CO2 lasers, maximizing your machine’s cutting and engraving potential - β€’ **Durability Meets Performance:** PVD ZnSe coating ensures high temperature resistance and scratch-proof longevity - β€’ **Sharper Focus, Faster Results:** Smaller focusing spot size concentrates energy for superior engraving and cutting speed - β€’ **Trusted by Pros, Loved by Makers:** Top-rated lens with 4.6 stars from 445+ reviews, outperforming pricier alternatives ## Overview The CNCOLETECH 20mm CO2 Laser Lens features a 50.8mm focal length and high-quality PVD ZnSe material, delivering β‰₯99.5% transmittance. Compatible with 30W-100W CO2 lasers, it offers superior durability, reduced laser loss, and a smaller focusing spot size for enhanced engraving and cutting efficiency. Trusted by professionals and hobbyists alike, this lens combines precision engineering with robust performance to upgrade your laser setup. ## Description Buy CNCOLETECH 20mm CO2 Laser Lens, 50.8mm Focal Length, PVD ZnSe Material, 30W-100W Compatible, For CO2 Laser Engraving & Cutting: Optics - desertcart.com βœ“ FREE DELIVERY possible on eligible purchases ## Features - Material: High quality PVD ZnSe material. Compatible power: 30W-100W - Diameter: 20mm/0.79"; Focal Length:50.8mm/2"; Thickness:2.0-2.2mm/0.08"; Transmittance: β‰₯99.5% - Exquisite Technology: Superb Double-sided solid coating, precision slicing, polishing and grinding process, Reduced laser loss, wiping resistant, high temperature resistance, excellent optical properties, high working efficiency. - High efficiency: PVD ZnSe CO2 laser focus lens has Focusing Spot Size more Smaller, the energy is more concentrated, making the CO2 laser engraving, cutting machine more efficient. - Application: CO2 laser lens are mainly used in CO2 laser engraving and cutting well. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01FEOP5TW | | Best Sellers Rank | #43,036 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #73 in Jewelry Making Engraving Machines & Tools | | Brand Name | CNCOLETECH | | Color | 20mm | | Customer Reviews | 4.5 4.5 out of 5 stars (90) | | Item Dimensions L x W | 2"L x 0.79"W | | Item Weight | 0.02 kg | | Level Measurement Type | laser | | Manufacturer | Shanghai Top Nine Industrial Co.,Ltd | | Manufacturer Part Number | LENS-20-508 | | Material Type | ZnSe | | Model Number | 905211 | | Number of Items | 1 | | Number of Packs | 1 | | Operation Mode | Automatic | | Style Name | PVD ZnSe | | Unit Count | 1 Count | ## Product Details - **Brand:** CNCOLETECH - **Color:** 20mm - **Material:** ZnSe - **Product Dimensions:** 2"L x 0.79"W - **Style:** PVD ZnSe ## Images ![20mm CO2 Laser Lens, 50.8mm Focal Length, PVD ZnSe Material, 30W-100W Compatible, For CO2 Laser Engraving & Cutting - Image 1](https://m.media-amazon.com/images/I/51Zw9NEIwOL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: The focus of this lens is 101.6mm** A: My set up is 2" (50.8 mm). if you're having trouble, the lens may be installed upside down. Theory says: Convex side towards the beam (up). Western laser machines - and Korean -always has Convex up. Chinese used to set Convex down. **Q: What is the purpose?** A: It's good for 40W-150W CO2 laser tube / laser enngraving and cutting machine. **Q: What is the purpose?** A: To Control The focal distance between the laser and the material surface. **Q: it says 20 pieces for this.... do you get 20 lenses?** A: por el precio parece que solo uno ## Frequently Bought Together - CNCOLETECH 20mm CO2 Laser Lens, 50.8mm Focal Length, PVD ZnSe Material, 30W-100W Compatible, For CO2 Laser Engraving & Cutting - Cloudray Mo Mirror Dia 25mm (0.98 Inch) Thk 3mm (0.12 Inch) for CO2 laser engraving cutting machine Pack of 3PCS - Cloudray CO2 Laser Lens 20mm Laser Mirror CO2 Laser Focal Lens CO2 Focus Lens,CVD ZnSe for CO2 Laser Engraving Cutting Machine,Laser Cutter 40W-200W,Dia 20mm FL50.8mm --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/45261360-20mm-co2-laser-lens-50-8mm-focal-length-pvd-znse](https://www.desertcart.jp/products/45261360-20mm-co2-laser-lens-50-8mm-focal-length-pvd-znse) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-17*