CNCOLETECH Laser Lens CVD II-VI Znse Focus Lens Dia 50mm for CO2 Laser 10600nm 10.6um Laser Engraver

$514.81 $504.81 Save 2%
  • Shipping within 1-2 business days.
  • By Expedited Shipping (by DHL/Fedex/UPS/DPD).
  • Within 5-7 days delivery.
Diameter: 50mm
Focal Length: 25.4mm/ 1"
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Diameter: 50mm
Focal Length: 25.4mm/ 1"

MCWlaser II-VI Znse Focus Lens

The MCWlaser Lens for CO2 Laser 10600nm 10.6um - the perfect choice for precision engraving and cutting.

1.Hight class CVD Znse material (US II-VI)
2.Our double-sided solid coating ensures extended durability and wiping resistance, while our precision slicing, polishing, and grinding processes guarantee excellent optical properties and high working efficiency.
3.With high-temperature laser resistance and a laser transmittance of up to 99.8%, our lens is the best option for your laser applications.
4.This focus lens has passed Raw Material Absorption Test, Surface Quality Test, Surface Roughness Measurement, Optical Profiling, Centering Tolerance Test, and the quality is guaranteed.

To avoid lens breakage, follow these tips:
(1) Ensure proper air cooling to prevent overheating and cracking.
(2) Watch out for condensation water drops in the lens barrel, as they may cause breakage.
(3) Keep the lens clean and free of debris from the cut or engrave material to avoid uneven heating over time, which may cause breakage. Clean with a cotton ball dipped in absolute alcohol or acetone.
(4) When adjusting the light path, ensure that the laser does not accidentally hit the edge of the lens or the junction of the lens barrel, as this may cause breakage.

Choose MCWlas Lens for CO2 Laser 10600nm 10.6um for reliable, efficient, and high-quality laser engraving and cutting.


Material CVD znse/ ll-VIznse Centration <3 arc minutes
Wavelength 10.6um Clear Aperture >90%
Transmittance ≥99.8% Surface Figure <λ/2 per 1" Dia
DiameterTolerance +0/-0.13mm Surface Quality 40- 20 scratch and dig
Thickness Tolerance ±10.25mm AR/AR Coating R<0.5% per surface
FL Tolerance <±2% Compatible Power 0-500w
Thickness 7.87mm Shape Plano-convex

How to Determine Focal Length

Focal length is the distance between the lens and the workpiece(material being cut or engraved).Before replace or install the lens, please confirm the diameter and focal length firstly. You may confirm the focal length of your lens according to the following pic.


For engraving, we recommend using a laser lens with a focal length of 38.1mm or 50.8mm. If you're planning to cut, we suggest using a laser lens with a focal length of 63.5mm, 76.2mm, 101.6mm, or 127mm.


You can contact our head-office directly,also you can contact our agent which is near you.Of course,free live-chat is available and you can get help immediately.

Customer Reviews

Based on 5 reviews
Robert Smith

These are mirrors for my 60 watts laser engraver/ cutter. They arrived early and are doing very well

Brittany Henson

So far its outlasted the stock lens it replaced. No issues yet. This thing is pretty durable too! I am surprised that it helps up with no scratches etc! It gets 2-6 hours minimum a day of work put on it daily as well.


Transformed my k40, the stock lens was cloudy and brittle (a few places chipped) creating a half-moon when fired. This little gem sorted that and gave me the power the machine should produce. Thank you

Ilean Wenzel

This lens is thicker at the edge than OEM lenses from universal laser and cuts well enough so far.

Bjarni Hardarson

Seriously great buy! I was paying a pretty ridiculous price for the same exact product until I found these! You will not be disappointed!! I’ve bought several and all have been A+

Please View FAQ Here

You are welcome to contact us anytime via our live chat or

What about the shipping method and time?

By Expedited Shipping (by DHL/Fedex/UPS/DPD), door-to-door service.
1. General products,
CN Warehouse: 5-9 Business Days
UAS Warehouse: 3-5 Business Days
EU Warehouse:5-7 Business Days

2. Customized products (Only Support Shippment From China Warehouse)
The average period of production: 5-6 Business Days
Shipping: 5-9 Business Days
(Notification: Customs clearance inspections may cause delays of 2-3 days in logistics)1. General products

By Sea or Air to sea or airport (door-to-door service is optional)
It is for larger cargo.
The delivery time depends on the detailed shipping address, please check the exact time and cost with us.

What about the Customs Duty and VAT or Tax?

1.If your order was shipped from China,the pice doesn't include the import tariff duty, tax, or VAT.
The tariff duty, tax or VAT depend on local law and policy in difference country. The buyer needs to cover the cost.
2.If your order was shipped locally, such as from US ,AU or Europe,the price includes the duty,tax or VAT. The buyer don't need to pay customs duty, tax or VAT.
3 .Part of products in EU and US support PICK UP ON SITE Please check with us about the detail if you need.

If you can provide the invoice?

Yes,if you need the invoice,please contact with

What is your product warranty like?

All customer support services and policies will be only applied to orders on
MCWlaser Amazon Store

If your products are not purchased from our official website or our Amazon Store, but purchased through another third-party platform, we will not be responsible for your order.

Please view our detailed warranty instructions:

If you have any questions, please contact us:
Whatsapp/Wechat: 0086 18121236578

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Remember to always exercise caution when making online purchases and to protect your personal and financial information.

Product and Service Support

Lifetime Technical Support

Regardless of whether the product purchased by the customer has reached the warranty period, MCWlaser provides lifelong technical support for all customers who purchase products at

Online Support & Expert Support

For complex technical issues, we provide expert support services (only for customers who purchase products at, and our experts can assist customers to solve problems through remote operation or video calls.

Discounts and Offers

We offer regular promotions, follow us on our website and social platforms, or ask our online customers. All promo codes are valid only at Coupons can only be used for shopping and cannot be exchanged for cash.

Quality Certification

Our products comply with CE certification and other quality certifications, you can buy our products with confidence. If you need certified documents to help you gain confidence, please contact our customers online or send us an email: