272460 - Miller Digital Infinity Replacement Auto-Darkening Filter (ADF)

Technical Overview of the Miller Digital Infinity Lens Assembly

The Miller 272460 is the direct replacement Auto-Darkening Lens Assembly designed specifically for the Digital Infinity™ Series welding helmets. This unit represents the pinnacle of Miller's optical engineering, housing a massive 13.4 square inch viewing area—the largest currently available in the industry. The assembly is engineered to integrate seamlessly with the Digital Infinity shell, restoring the helmet to factory specifications and performance levels.

Central to this lens assembly is Miller's proprietary ClearLight™ Lens Technology. Unlike traditional green-tinted filters, ClearLight optimizes the transmission of colors across the light spectrum, providing a high-definition, natural color view of the weld puddle and surrounding work area. This results in a 1/1/1/2 optical clarity rating, reducing eye strain and improving weld quality by allowing for more precise puddle manipulation.

The 272460 assembly features four independent arc sensors and operates with four distinct modes to cover a wide range of fabrication tasks:

• Weld Mode: Standard auto-darkening for general welding applications (Shades 8-13).


• Cut Mode: Optimized for plasma and oxy-fuel cutting (Shades 5-8).


• Grind Mode: Locks the lens in a light state (Shade 3) for clear visibility during material removal.


• X-Mode™: A specialized mode that electromagnetically senses the welding arc rather than relying solely on optical sensors. This eliminates interference from direct sunlight and ensures the lens darkens even if the sensors are obstructed, making it ideal for pipe welding or outdoor work.

Additionally, the lens includes InfoTrack™ 2.0 technology, a built-in data tracking system that records arc time and arc count. This feature allows welding operators and managers to monitor productivity and calculate true arc-on time. The digital interface provides intuitive control over sensitivity, delay, and shade settings, ensuring the lens can be fine-tuned to the specific amperage and environment of the task at hand.