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Ships within 48 hours · Estimated delivery Sep 13 - Sep 18
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Description
12mm CVD ZnSe Focal Focus Lens for 40W 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.
- K40 COMPATIBLE: This 12mm laser focus lens fits OMTech 40W 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: 12mm (0.47")
- Thickness: 2mm (0.08")
- Focal Length: 1" (25.4mm)/ 2" (50.8mm)/ 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:
- 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
4.4 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Perfect Travel Size TSA approved size
Size: 3 Fl Oz (Pack of 2), Style: SPF 50
I recently bought the Coppertone SPORT Sunscreen SPF 50 Lotion in travel size for my son’s first trip to Cancun alone, and I have to say, it was a fantastic choice! Whether you're headed to a sunny beach, a day of fishing, or just need reliable protection from the sun, this sunscreen delivers. Here’s my review based on its performance during the trip:
Convenience and Travel-Friendly:
The travel size is perfect for anyone on the go. It’s small enough to meet TSA guidelines for carry-ons, so you don’t have to worry about checking luggage or dealing with oversized bottles at security. My son was able to easily pack it in his carry-on without any hassle. Additionally, the compact size makes it super convenient to throw into a pocket or backpack for a day of fishing, beach trips, or any outdoor adventure.
Sun Protection:
The SPF 50 provides excellent protection from harmful UVA and UVB rays, which is especially important for long hours spent in the sun. Cancun’s sun can be intense, and my son was out in the elements for several hours each day (and I wasn't there to remind him to reapply sunscreen), whether he was fishing, swimming, or just relaxing at the beach. He didn’t get burned once!! As a mother of a redheaded 18 year old son I've spent the past 18 years of my life ensuring he wasn't scorched by the sun and Coppertone has yet to let us down!
Water Resistance:
The water-resistant formula is a huge plus, especially in places like Cancun, where you’ll likely be in and out of the water. My son spent plenty of time swimming and snorkeling, and the sunscreen stayed put. It lasted through sweating, splashing, and even sea water exposure without needing constant reapplication. It’s perfect for active outdoor activities, whether you're swimming, surfing, or just sweating it out in the sun.
Mother approved!!
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Reviewed in the United States on November 9, 2024
★★★★★ 5
Dries clear, moisturizing, silky, great value
Size: 5 Fl Oz (Pack of 1), Style: SPF 50
I have fair to light combination skin. I use this on my body, but not my face. It goes on very thick and white, but sinks into the skin lightning fast (within just a few seconds), and it becomes completely invisible. It leaves my skin moisturized and looking and feeling silky. Best body sunscreen I've ever tried. And I love that it is water resistant! I find it too heavy and moisturizing to use on my face, but people with dry skin would probably love it for the face, too. I imagine it would be fantastic for them under makeup. The price per ounce is very reasonable, making it a great value.
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Reviewed in the United States on June 5, 2026
★★★★★ 5
Reliable Sun Protection for Active Days!
Size: 3 Fl Oz (Pack of 1), Style: SPF 50
Coppertone SPORT SPF 50 is my go-to sunscreen for outdoor activities. It’s lightweight, non-greasy, and stays on even when I’m sweating or swimming. The broad-spectrum formula protects against both UVA and UVB rays, giving me peace of mind during long hours in the sun.
The 3 fl oz size is perfect for carrying in a gym bag, backpack, or beach tote, making it easy to reapply throughout the day. It absorbs quickly and doesn’t leave a sticky residue, which is great for sports or active adventures.
Highly recommend for anyone who wants effective, durable sun protection without sacrificing comfort or mobility!
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Reviewed in the United States on November 21, 2025
★★★★★ 4
IT does protect from the sun.
Size: 5 Fl Oz (Pack of 1), Style: SPF 50
It protects from the sun without a doubt and lasts well. The downsides are that it leaves a greasy and "white" residue that no matter how much you rub it in.....it stays there. I use it when I am working outside and not planning on going anywhere anytime soon.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Fabulous
Size: 7 Fl Oz (Pack of 1), Style: SPF 50
Fabulous. Nice size bottle.
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Reviewed in the United States on May 24, 2026
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