The Sekonic L-758DR also incorporates a precise 1-degree, reflected light spot meter. Reflected light metering tells you about the subject. Different from incident light metering that produces readings only for the middle of your camera's exposure range, reflected light metering can also show you where the edges are. The key to working with the L-758DR's spot meter is knowing the dynamic range of your camera.The DigitalMaster L-758DR was designed from its inception to offer today's digital and film shooter repeatable precision, accurate measurement and digital exposure control that is necessary for today's photographer. It offers cutting edge features never before available in any light meter and redefines what a light meter is. The L-758DR is a critical tool for digital exposure control. Key Features Ultra versatile flash-meter and ambient light-meter Incident and reflected metering 1° spot metering Adjustable spot viewfinder diopter correction Retractable lumisphere dome for more directional incident readings Lumisphere pivots for easy use while reading display Clear display with excellent backlighting Two easy access ISO preset buttons 14 Custom function settings Camera exposure profiling capability ±1/10th of a stop accuracy Ambient readings down to -2EV Displays in Shutter Speeds & f/stops or EV (Exposure Value) Simultaneous measurement of flash and ambient Wireless radio triggering of strobes via RT-32CTL Module Excellent as new condition as seen in pictures