Pinhole Master is a light meter and exposure timer for pinhole photographers, or anybody else photographing with long exposures. It uses your iPhone/iPad camera to determine the light level (Exposure Value) Not got the Lumu yet? See HERE This is a must have app for the mobile photographer who uses mobiles and there is lots of them like it or not,Our mobile phones are no DSLRs but they can take excellent photos today which is also seeing sales drop on standalone cameras,something I have never owned myself and have being using my smartphone for many years to take snaps whatever they maybe.
Features include:
Supports apertures from f/1 to f/999, Exposure Index (ISO) from 1 to 9999
Fast and accurate EV readings displayed to one decimal place (computed as 64-bit internally)
Calibrate your device camera sensitivity in Settings with minimum and maximum EV levels to avoid bogus readings, especially in low light
Preview overlays of the EV level and camera/film parameters (which can be turned off in Settings)
Film/paper-specific reciprocity failure compensation from your own testing, manufacturer specifications or measurements you’ve found on the web
Sophisticated smoothed interpolation used in determining the compensated exposure time
Coordinates of your capture written to the log, along with a map of the location
Judicious use of GPS to conserve battery life
A modern user interface designed for efficient use in the field
Fully compatible with iPad (though not optimised for displays larger than iPhone 6/6s Plus)
Support for Lumu for precise incident light measurement
