OMTech F Theta Lens for 70mm Fiber Laser Engraver - 1064nm Galvo Scanning Lens Replacement for 20W-60W Laser Marking Machines | Perfect for Metal Engraving, Jewelry Making & Industrial Laser Cutting Applications

Engrave better and faster with this ultra-high transmittance fiber laser field lens from OMTech! Whether you're replacing a worn scan lens or upgrading, this fiber laser lens offers extreme precision and peak optical performance across its entire 70x70mm work area to get all your stone, glass, and metal marking done right. Manufactured from premium borosilicate crown glass, this galvo scanner lens boasts strongly antireflective coatings on both sides to give you a light transmittance rate better than 99% at the 1064nm wavelength critical for CW, QCW, and Nd:YAG lasers. To ensure the longest possible service life, the coating on both sides of the lens also helps it resist scratches and other damage during daily use. The standard M85x1 threading lets you easily install this optical lens onto the galvanometer of most fiber etching machines, including all those from OMTech. With OMT's brand-new F theta lens, your laser engraving, cutting, etching, and marking work has never been easier! Lasting Precision for Superior Engraving Quality Fθ Lens This lens for 1064 nm wavelength lasers offers up to 99% transmittance with minimal distortion and antireflective coatings that ensure both excellent engraving and a long service life. 2¾″×2¾″ Scanning Area Maintaining a dependable and consistent focus across its 70×70 mm (2¾″×2¾″) scanning area, our lens creates vivid markings & flawlessly executes even intricate designs with unbelievable precision. Simple Installation The M85×1 threading allows quick and easy installation with most laser marking machines on the market, easily upgrading or replacing older lenses. 170x70mm F Theta Lens 110x110mm F Theta Lens 150×150mm F Theta Lens 175×175mm F Theta Lens 200×200mm F Theta Lens 300×300mm F Theta Lens Buying Options Buying Options Buying Options Buying Options Buying Options Add to Cart Customer Reviews 5.0 out of 5 stars 7 — 5.0 out of 5 stars 7 5.0 out of 5 stars 7 — 5.0 out of 5 stars 5 Price $85.99$85.99 — no data $86.99$86.99 $95.99$95.99 — no data $104.99$104.99 Scan Field 70×70 mm 110×110 mm 150×150mm 175×175mm 200×200mm 300×300mm Scan Length 99 mm 158 mm 212 mm 247.5 mm 283 mm 424 mm Scan Angle ±28° ±28° ±28° ±28° ±28° ±28° Focal Length Effective 100 mm 160 mm 210 mm 254 mm 290 mm 430 mm Focal Length Back 123.5 mm 169.5 mm 233 mm 272 mm 302.7 mm 445 mm Beam Diameter 12 mm 12 mm 12 mm 12 mm 12 mm 12 mm Working Distance 10 μm 160.5 mm 227.3 mm 289.8 mm 299 mm 560 mm