FLIR FlexView™ Dual Field‑of‑View (DFOV) Lens — Professional Overview

Executive Summary

FLIR FlexView™ DFOV lenses combine two fields of view in one optical assembly, allowing instant switching with a push‑button. This eliminates physical lens changes in the field, improving speed and safety during thermal inspections. Configurations typically include wide/medium and medium/telephoto pairs.

Primary Benefits

• Fast FOV switching without removing the lens.
• Wide FOV for context; narrow FOV for pixel density and accuracy.
• Compatible with multiple camera families.
• Reduced inspection time — no lens swaps needed.

Quick Facts

How FlexView Works

Optical principle: two lens prescriptions (wide and tele) are integrated into one body. The camera switches between them mechanically/electronically to provide distinct fields of view.

Operational effect: wide FOV = situational awareness; narrow FOV = higher spatial resolution for hotspots.

Image integrity: radiometry remains accurate. FOV switching changes projection, not calibration. Save radiometric files for precise analysis.

Common Configurations & Specs

*Always verify part numbers and compatibility before purchase.

Best Practices

• Use wide FOV to locate targets and check safety; switch to narrow FOV for quantification.
• Narrow FOV preferred for small or distant components.
• Save raw radiometric files for accurate records.
• Protect the lens from dust/moisture; use case during transport.

Application Examples

• Utilities: wide view for poles/transformers; narrow for hotspots on connectors.
• Process industry: wide for exchangers; narrow for welds or refractory details.
• Building: wide for envelope scans; narrow for small bridges or leaks.

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