TEN-HIGH Diameter 38mm Focal Lens Review: Specs, Pros and Cons
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This ten high diameter 38mm focal lens review covers the TEN-HIGH 38mm ZnSe CO2 Laser Focal Lens. It is a replacement optical component designed for CO2 laser cutting and engraving machines. The lens features a 38mm diameter and a 127mm focal length. These dimensions define its optical geometry and working distance. The unit weighs 3.53 ounces and uses superior transmittance ZnSe material. Double-sided solid coating enhances durability and laser efficiency. This listing details the physical and optical specifications that matter for your machine setup. You should check if these exact measurements match your current lens holder requirements before purchasing.
What stands out
- 38mm diameter and 127mm focal length for precise CO2 laser focusing
- Superior transmittance ZnSe material with excellent optical properties
- Double-sided solid coating for wiping resistance and long working life
- Plano-convex shape designed to improve engraving quality
Who it fits
Good fit for
This lens suits users who own CO2 laser engravers and cutters requiring a 127mm focal length. It is ideal for operators who need a 38mm diameter lens to fit their specific machine holders. The high transmittance material benefits those seeking efficient laser energy delivery. Users who value durable, double-sided coated optics for longer service life will find this spec sheet appealing. It fits setups where the 5-inch focal distance is the standard configuration. Check your machine manual to confirm these exact dimensions match your existing hardware before ordering.
Who should skip it
Skip this option if your CO2 laser machine requires a 190.5mm focal length lens. The listing shows a 7.5-inch variation exists, so you should select that alternative instead. Do not buy this if your machine holder cannot accommodate a 38mm diameter lens. This product is strictly for CO2 laser systems, not fiber or diode lasers. If you need a different focal distance or diameter, this specific 127mm/38mm configuration will not fit. Verify your current lens specifications carefully to avoid compatibility issues with your equipment.
Verdict: The TEN-HIGH 38mm ZnSe lens offers solid optical specs for standard CO2 laser setups. It is a practical choice if you need a 127mm focal length and 38mm diameter.
Key specs explained
Diameter: 38mm
The lens width is 38mm, which determines the physical size of the optical element. You need this measurement to ensure the lens fits your laser machine's holder. A 38mm diameter is a standard size for many CO2 systems. Check your existing lens or holder specifications before buying. This ensures proper alignment and secure mounting during high-speed cutting operations.
Focal length: 127mm
This is the distance from the lens to the focal point, where the laser beam converges. A 127mm focal length offers a balance between spot size and working distance. Longer focal lengths provide more room for uneven materials but may reduce cutting precision. Shorter lenses offer tighter spots for fine engraving. Match this spec to your desired depth of field and material thickness.
Material: ZnSe
Zinc Selenide is the standard material for CO2 laser lenses due to its high transmittance of CO2 wavelengths. It handles high heat better than glass. This material choice ensures efficient laser energy transfer to your workpiece. If you use a CO2 laser, ZnSe is the expected standard. Avoid glass lenses for CO2 machines as they may crack or absorb the beam energy.
Coating: Double-sided
The lens has coatings on both sides to maximize light transmission. This reduces energy loss as the laser passes through the glass. Higher transmittance means more power reaches your material for cleaner cuts. Look for solid coating processes for durability. This feature helps maintain consistent engraving quality over time and reduces the need for frequent lens replacements.
Design and build quality
The lens uses zinc selenide (ZnSe) material, which the listing describes as having superior transmittance. This optical property helps reduce laser loss during operation. You get higher work efficiency because more of the beam passes through the glass. The plano convex shape is noted for providing better quality results when engraving. This curvature focuses the beam to a precise point on your workpiece.
According to the listing, the lens features a double-sided solid coating. This process adds wiping resistance and extends the working life of the optic. The substrate is described as excellent, with high temperature and laser resistance. These traits suggest the lens can handle the heat generated during continuous cutting without degrading quickly. The precision slicing, polishing, and grinding processes aim to maintain optical clarity over time.
The physical size is 38mm in diameter with a 127mm focal length. The thickness is approximately 8.2mm. The listing states the weight is 3.53 ounces. This lightweight design makes it easy to handle during installation. You need to verify that your machine’s holder accepts a 38mm diameter lens. The 127mm focal length determines the working distance between the lens and the material. Ensure this matches your machine’s current setup to maintain focus accuracy.
Setup and everyday use
Installing this lens is a straightforward mechanical task. The listing specifies a 38mm diameter and a 127mm focal length. You must verify that your laser machine uses a holder compatible with these dimensions. The lens weighs 3.53 ounces. This light weight makes handling easy during installation. You should handle the optical surface with care. The product features double-sided solid coating. This coating provides wiping resistance. You can clean the lens regularly without damaging the coating. The plano convex shape helps maintain beam quality. This design supports better engraving results. The lens is designed for CO2 laser systems. You cannot use it with fiber or diode lasers. The ZnSe material offers high transmittance. This reduces laser loss and improves work efficiency. The precision slicing and polishing processes ensure accurate focusing. High temperature and laser resistance are built into the substrate. These traits help the lens withstand daily operation. You should check the thickness, which is approximately 8.2mm. This measurement ensures it fits your machine’s optical path correctly. The listing notes two size options. You selected the 5-inch variant. Ensure your machine matches this focal length. Daily use involves routine cleaning. The wiping resistance allows you to maintain clarity. Proper setup and maintenance keep your laser cutting and engraving performance consistent.
Before you buy this lens
You need to verify your laser machine uses a 38mm diameter holder. This lens is not for fiber systems. It is strictly for CO2 lasers. Check your current focal length. The listing offers a 127mm option. Another variation provides 190.5mm. Choose the one matching your machine. You may need cleaning tools. ZnSe lenses require care. Use lens tissue and proper solution. Avoid scratching the coating. Store the lens safely when not in use. Dust affects performance. This TEN-HIGH lens fits alongside other CO2 accessories. It replaces worn optics. Ensure your machine is powered off. Handle with gloves. Oil from skin damages the coating. This component is a maintenance item. It does not replace the laser tube. You buy it to restore focus quality. Compare it with other 38mm lenses. Check the coating type. Double-sided solid coating is listed. This helps with durability. Verify the material is ZnSe. This ensures proper transmittance for your CO2 beam.
Check before you buy
- Confirm your laser machine uses a 38mm diameter lens holder.
- Verify your system is a CO2 laser, not a fiber system.
- Check if your machine requires a 127mm or 190.5mm focal length.
- Ensure you have proper cleaning tools for ZnSe optics.
- Handle the lens with gloves to avoid skin oil damage.
The product at a glance
TEN-HIGH 38mm ZnSe CO2 Laser Focal Lens
Best for: CO2 laser replacement with 127mm focal length
- Laser Type
- CO2
- Weight
- 3.53 ounces
View on Amazon: TEN-HIGH 38mm ZnSe CO2 Laser Focal Lens Affiliate link
This TEN-HIGH lens is a replacement part for CO2 laser engravers. It features a 38mm diameter and a 127mm focal length. The plano-convex shape helps improve engraving quality. High transmittance ZnSe material reduces laser loss. It weighs 3.53 ounces. You should use this lens if your machine requires these specific dimensions for accurate cutting and marking.
Pros
- 38mm diameter and 127mm focal length
- ZnSe material with high transmittance
- Plano-convex shape for better engraving quality
- Double-sided solid coating for durability
Cons
- Only available in 127mm focal length
- Does not include mounting hardware
- Requires manual installation on your machine
Good fit if
- You need a 127mm focal length lens
- Your machine uses a 38mm diameter lens
- You want to replace a worn optical component
Skip if
- You require a 190.5mm focal length lens
- You are looking for a complete laser system
- Your machine uses a different lens diameter
Verdict: TEN-HIGH 38mm 127mm Focal Lens fits users who need a direct replacement for CO2 lasers with matching dimensions. It offers reliable optical performance for standard engraving tasks.
Specifications side by side
| Spec | TEN-HIGH 38mm ZnSe CO2 Laser Focal Lens |
|---|---|
| Laser Type | CO2 |
| Weight | 3.53 ounces |
| Size | 5"/127mm |
Frequently asked questions
Is this lens compatible with fiber lasers?
No. The TEN-HIGH 38mm lens is designed strictly for CO2 laser systems. It uses zinc selenide optics, which are specific to CO2 beam wavelengths. Fiber lasers require different optical materials and coatings. Using this lens with a fiber machine will not work and may damage the equipment. You must ensure your machine is a CO2 type before purchasing.
What is the focal length of this lens?
This specific model has a 127mm focal length. The listing also offers a 190.5mm variation. You should check your current lens or machine manual to confirm which length your system requires. The 127mm option is suitable for standard engraving and cutting tasks. Selecting the wrong focal length will affect your focus depth and cut quality.
How much does the lens weigh?
The lens weighs 3.53 ounces. This lightweight design makes it easy to handle during installation. You can swap it out without needing heavy-duty tools. The low weight does not compromise the structural integrity of the zinc selenide element. It is a simple mechanical replacement for your existing optical setup.
What material is the lens made from?
It is made from zinc selenide (ZnSe). This material is chosen for its superior transmittance of CO2 laser beams. Higher transmittance means less laser energy is lost as heat. This helps maintain consistent power output during your projects. ZnSe is the standard material for CO2 laser optics due to its durability and optical clarity.
Can I use this for general engraving tasks?
Yes. The lens provides reliable optical performance for standard engraving tasks. Its 38mm diameter and 127mm focal length are common sizes for many CO2 machines. You will get good results for typical material engraving. It serves as a direct replacement for worn-out lenses. The design supports efficient beam passage for clean cuts and sharp engravings.
Does it fit standard laser holders?
It fits holders designed for a 38mm diameter lens. You must verify that your machine uses this standard size. The listing specifies a 5-inch or 127mm dimension for the focal length, not the holder size. Check your current lens holder specifications. If your holder accepts 38mm lenses, this item will install directly without modification.