SKU: 29794683207

18mm CVD ZnSe Focal Focus Lens for 50W - 100W Laser Engraver Cutter

Sale price$71.99 Regular price$79.99
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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31

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Description

18mm CVD ZnSe Focal Focus Lens for 50W - 100W Laser Engraver CutterCutting Edge Features: HIGH QUALITY CVD ZnSe: OMTech's powerful focus lenses are manufactured from premium zinc selenium via chemical vapor deposition for superior optical properties. HIGH TRANSMITTANCE: Both sides of each lens are covered with strongly antireflective coatings to achieve at least 99. 5% transmittance rate for infrared light at a wavelength of 10. 6 microns. LASTING DURABILITY: Our laser engraver focus lenses' double sided coating

Cutting Edge Features:

  • HIGH-QUALITY CVD ZnSe: OMTech's powerful focus lenses are manufactured from premium zinc selenium via chemical vapor deposition for superior optical properties.
  • HIGH TRANSMITTANCE: Both sides of each lens are covered with strongly antireflective coatings to achieve at least 99.5% transmittance rate for infrared light at a wavelength of 10.6 microns.
  • LASTING DURABILITY: Our laser engraver focus lenses' double-sided coating process also ensures outstanding scratch resistance for longer service life.
  • WIDE COMPATIBILITY: This 18mm laser focus lens fits OMTech 50W-100W CO2 laser engravers. Please check the focal lens diameter in your machine’s manual before purchasing.
  • EASY TO USE: The plano-convex shape of OMTech's engraver focal lens lets you install it easily and correctly onto your machine in the proper orientation. Detailed cleaning instructions also help you take proper care of your lens.

Specifications:

  • Material: Zinc Selenium
  • Color: Yellow
  • Diameter: 18mm (0.71")
  • Thickness: 2mm (0.08")
  • Focal Length: 1.5" (38.1mm)/ 2" (50.8mm)/ 2.5" (63.5mm)/ 3" (76.2mm)/ 4" (101.6mm)
  • Rec. Wavelength: 10.6 microns (10600 nm)
  • Min. Light Transmittance: 99.5%
  • Net Weight: 0.2 oz (5g)

Package Includes:

1 x CVD ZnSe Focus Lens

Warranty:

  • No need to worry! We offer a 1-year warranty on all focal lenses.

Certifications:

  • FDA Compliant
  • CE Certification
  • ISO9001 Quality Certification

Summary:

It is all smoke and mirrors! As you engrave, debris such as smoke and dust land on your focal lens, building up a layer of residue over time that absorbs laser beam power and can stain the lens permanently. Eventually, this lost power will affect your machine’s precision and throw off your laser settings. To keep your device running at its full potential, we recommend inspecting and cleaning the optics system once a week and replacing the mirrors or focal lens as soon they get damaged.

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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 29794683207

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J.R.
Draper, US
★★★★★ 3
very convenient
Size: 12, Color: All Black
very comfortable easy to slip on real convenient for everyday use
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Reviewed in the United States on May 8, 2026
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Kathleen
West Palm Beach, US
★★★★★ 5
So Comfortable!
Size: 11, Color: Grey
Love these sneakers. I am a woman but the mens sneakers are wider for me.So comfortable.I'm.a nurse on my feet al day.Walk my dog in them for 1/2 hour. I now have 5 pairs!
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Reviewed in the United States on May 29, 2026
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K. Carter
Phoenix, US
★★★★★ 5
Easy on shoes
Size: 10.5, Color: All Black
Good fit. Look good. Feel good. What more could you ask for!
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Reviewed in the United States on May 27, 2026
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Ryan
Omaha, US
★★★★★ 5
Worth the price and comfort
Size: 12, Color: Allgrey015, Size: 12, Color: Allgrey015
Honestly I love these shoes. Of course I was skeptical when buying them but I’m glad I did! I use to wear the classic Vans on the daily and these shoes are much lighter and breath way more! Plus when you get them wet they dry very fast and keep the forum. The traction on the shoot is incredible. The versatility it impeccable. I have a pear for light hiking and water sports and everyday use.
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Reviewed in the United States on May 20, 2026
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Joshelift
Los Angeles, US
★★★★★ 5
✅ I love it
Size: 9.5, Color: Grey015, Size: 9.5, Color: Grey015
✅ I bought these shoes to run and wear around the house and they are good ✅ I love that they are light weight because it feels like nothing when I am running. I feel faster when wearing these shoes while running. ✅ I like how the shoe looks basic and not flashy. So not only do I wear them to the gym, I also wear them when I’m going grocery shopping or just doing everyday task so they are very versatile. ✅ I have flat set and this shoe fits perfectly and is very comfortable like wearing slides. Even the sole that come with them soft but when I go on long runs, I change them out for more customized soles. ⚠️ these shoes has NO traction when running off road (pavement). I learned that part the hard way when I kept slipping on inclines.
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Reviewed in the United States on May 29, 2026

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