The Sekonic L-558 DualMaster is the first multi-function light meter to offer a 1° spot meter that measures reflected flash output down to an amazing

The Sekonic L-558 DualMaster is the first multi-function light meter to offer a 1° spot meter that measures reflected flash output down to an amazing f/2.0 (ISO 100).

Incident, reflective, spot, and flash metering

Cordless Flash Mode

ISO 3 to ISO 8000

Rugged, compact, all-weather housing

Illuminated LCD panel

1/2 or 1/3-stop increments

Optional Plug-in Radio Transmitter Module