---
product_id: 625572254
title: "OMTech F Theta Lens for Fiber Laser Engraver, 300mm Sino Galvo Scanning Lens for 1064nm Fiber Laser Marking Machine, Laser Field Lens Replacement for 20W 30W 50W 60W Fiber Laser Engraving Machines"
brand: "omtech"
price: "A$242"
currency: AUD
in_stock: true
url: https://www.desertcart.com.au/products/625572254-omtech-f-theta-lens-for-fiber-laser-engraver-300mm-sino
store_origin: AU
region: Australia
---

# 20 micron spot size accuracy 99% high transmittance 300x300mm precision field OMTech F Theta Lens for Fiber Laser Engraver, 300mm Sino Galvo Scanning Lens for 1064nm Fiber Laser Marking Machine, Laser Field Lens Replacement for 20W 30W 50W 60W Fiber Laser Engraving Machines

**Brand:** omtech
**Price:** A$242
**Availability:** ✅ In Stock

## Summary

> 🔬 Elevate your laser game with precision that’s impossible to ignore!

## Quick Answers

- **What is this?** OMTech F Theta Lens for Fiber Laser Engraver, 300mm Sino Galvo Scanning Lens for 1064nm Fiber Laser Marking Machine, Laser Field Lens Replacement for 20W 30W 50W 60W Fiber Laser Engraving Machines by omtech
- **How much does it cost?** A$242 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/625572254-omtech-f-theta-lens-for-fiber-laser-engraver-300mm-sino)

## Best For

- omtech enthusiasts

## Why This Product

- Trusted omtech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pinpoint 20 Micron Spot Size:** Achieve ultra-fine detail and sharpness on metals like steel, gold, and aluminum with industry-leading focus accuracy.
- • **Durable Double-Sided Coatings:** Work confidently with scratch-resistant, multilayer coatings that ensure long-lasting optical performance under daily use.
- • **Crystal-Clear 99% Light Throughput:** Experience near-perfect laser transmission with precision borosilicate crown glass for vivid, distortion-free engraving.
- • **Expansive 300x300mm Scanning Field:** Maximize your creative canvas with a wide 11.9x11.9 inch laser marking area for intricate, large-scale designs.
- • **Seamless M85x1 Threaded Installation:** Upgrade or replace your lens effortlessly with a universal fit compatible with OMTech and most fiber laser machines.

## Overview

The OMTech F-Theta Lens is a high-performance 300mm field lens designed for 1064nm fiber laser engravers up to 60W. Featuring 99% light transmittance and a precise 20 micron spot size, it delivers sharp, vivid markings across a large 300x300mm area. Its durable multilayer coatings and easy M85x1 threaded installation make it a reliable upgrade for professional-grade laser engraving on metals.

## Description

OMTech F Theta Lens for Fiber Laser Engraver, 300mm Sino Galvo Scanning Lens for 1064nm Fiber Laser Marking Machine, Laser Field Lens Replacement for 20W 30W 50W 60W Fiber Laser Engraving Machines

## Features

- 300x300 mm Field Lens: OMTech's F-Theta lens is ideal for laser marking, engraving, image transfer, and cutting systems; it creates vivid markings and flawlessly completes even your most intricate designs through its 11.9x11.9 in. scanning area
- High Transmittance: This field lens for 1064 nm lasers up to 60W provides up to 99% throughput with negligible distortion thanks to its crystal clear and precision engineered borosilicate crown glass construction
- Superior Performance: Our F-theta scanning lens provides fast positioning and precision focusing so you can mark steel, aluminum, gold, silver, and more with a consistently exact 20 micron spot size anywhere in the lens's 30x30 cm field
- Lasting Durability: The fiber laser lens's double-sided multilayered coatings improve natural optical properties and ensure outstanding scratch and damage resistance during daily use, for a long service life and reliable performance
- Easy Installation: The standard M85x1 threading offers easy installation, quickly replacing or upgrading the old lens in OMTech or most other laser marking machines on the market
- Only suitable for split fiber laser engraver

## Images

![OMTech F Theta Lens for Fiber Laser Engraver, 300mm Sino Galvo Scanning Lens for 1064nm Fiber Laser Marking Machine, Laser Field Lens Replacement for 20W 30W 50W 60W Fiber Laser Engraving Machines - Image 1](https://m.media-amazon.com/images/I/61Ej1i4lh9L.jpg)
![OMTech F Theta Lens for Fiber Laser Engraver, 300mm Sino Galvo Scanning Lens for 1064nm Fiber Laser Marking Machine, Laser Field Lens Replacement for 20W 30W 50W 60W Fiber Laser Engraving Machines - Image 2](https://m.media-amazon.com/images/I/71-O5gGYpRL.jpg)
![OMTech F Theta Lens for Fiber Laser Engraver, 300mm Sino Galvo Scanning Lens for 1064nm Fiber Laser Marking Machine, Laser Field Lens Replacement for 20W 30W 50W 60W Fiber Laser Engraving Machines - Image 3](https://m.media-amazon.com/images/I/71O7Lx1OQYL.jpg)
![OMTech F Theta Lens for Fiber Laser Engraver, 300mm Sino Galvo Scanning Lens for 1064nm Fiber Laser Marking Machine, Laser Field Lens Replacement for 20W 30W 50W 60W Fiber Laser Engraving Machines - Image 4](https://m.media-amazon.com/images/I/616qrG15gcL.jpg)
![OMTech F Theta Lens for Fiber Laser Engraver, 300mm Sino Galvo Scanning Lens for 1064nm Fiber Laser Marking Machine, Laser Field Lens Replacement for 20W 30W 50W 60W Fiber Laser Engraving Machines - Image 5](https://m.media-amazon.com/images/I/716qmUZ4bcL.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- OMTech F Theta Lens for Fiber Laser Engraver, 300mm Sino Galvo Scanning Lens for 1064nm Fiber Laser Marking Machine, Laser Field Lens Replacement for 20W 30W 50W 60W Fiber Laser Engraving Machines
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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-01-28*