Sekonic L-758 Light Meter

• Profiles the specific sensitivity levels of your camera's imaging sensor for exacting light readings.
• Exposures accurate down to a tenth-of-a-stop in full-stop mode for both ambient and electronic flash light readings with a repeat accuracy of +/- 0.1 EV. Meter can also display shutter-speeds and apertures in half or third-stop increments to mirror the exposure settings on your camera. Flash exposures can be recorded cumulatively or non-cumulatively.
• Built-in 1-degree spot meter features an adjustable diopter (-2.5 to 1.0d), and is threaded for 30.5mm filters and/or lens hood (a tethered lens cap is included). Large red LED characters display exposure data within the viewfinder allowing for real-time exposure referencing while maintaining continuous eye contact with your subject. 
• The L-758DR's head swivels 270-degrees allowing you to 'walk the set' while maintaining constant visual contact with the meter's LCD display. Flash exposures can be taken with or without a tethered PC cord.
• Up to 9 readings can be stored for meter averaging and contrast evaluations in aperture and shutter priority modes.
• Mid-tone button allows you to shift the highlights or shadows to within the dynamic range of the profiled exposure reading. Warning flashes for out of range readings.
• Incident readings of three-dimensional objects are taken using the Lumisphere, which can be retracted for selective, narrower-field readings such as contrast ratio for flash lighting or for flat-field objects such as artwork.
• For mixed lighting scenarios, the Sekonic L-758DR DigitalMaster displays the combined exposure values of both flash and ambient light sources, including the percentage of flash in total exposure in 10-percent increments.
• Dual ISO buttons allow for quick exposure referencing when working with two differing film speeds, film and Polaroids, or other shooting scenarios involving dual ISO ratings.
• An indigo, backlit LCD screen with large text and icons allows for easy referencing when ambient light levels drop below EV 6.
• For wireless metering including Selective Quad Triggering - the included Sekonic RT-32 Radio Transmitter Module will wirelessly trigger PocketWizard-enabled flash systems within a 100' range from a choice of 32 channels.