MicaSense Downwelling Light Sensor 2 (DLS 2): Replacement illumination reference for multispectral missions

The MicaSense Downwelling Light Sensor 2 (DLS 2) is an incident light sensor used to maintain radiometric consistency in professional multispectral imaging. Installed on top of an aircraft with a clear view of the sky, it measures ambient illumination and sun angle throughout a mission. This data is written directly into image metadata, enabling accurate correction for lighting changes during processing. DLS 2 is included as standard equipment with Altum-PT and RedEdge-P sensor kits and is available separately as a replacement or spare accessory.

Ambient light sensing and metadata capture

• Measures incident light across supported spectral bands
• Records sun angle for every image capture
• Writes illumination data directly into image metadata
• Improves reflectance consistency under variable lighting
• Integrated GPS supports geotagging when required
• Directly connects to supported MicaSense sensors

Sensor compatibility

• MicaSense Altum
• MicaSense Altum-PT
• MicaSense RedEdge-P
• MicaSense RedEdge 3
• MicaSense RedEdge-M
• MicaSense RedEdge-MX

Common operational scenarios

• Multispectral surveys under changing cloud cover
• Precision agriculture reflectance mapping
• Research-grade vegetation analysis
• Time-series monitoring requiring consistent radiometry

The MicaSense DLS 2 provides a dependable illumination reference for professionals who require consistent multispectral data across varying light conditions. As a replacement unit, it helps ensure uninterrupted data quality for long-term sensing programs.

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