Sekonic L-758Dr Lightmeter

Profiles the specific sensitivity levels of your cameras imaging sensor for exacting light readings.
Exposures accurate down to a tenth-of-a-stop in full-stop mode for both ambient
Built-in 1-degree spot meter features an adjustable diopter (-2.5 to 1.0d), and is threaded for 30.5mm filters
Up to 9 readings can be stored for meter averaging and contrast evaluations in aperture and shutter priority modes.
For mixed lighting scenarios, the Sekonic L-758DR DigitalMaster displays the combined exposure values of both flash