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

VIA 

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Written by Jim O Brien/CEO

CEO in the transport industry, mobile tech fan 20 years, mobile consultant, Nokia/Microsoft VIP, HTC Specialist, Multiple forum supporter with worldwide top rankings, I also work in the background in the mobile technology sector, weekly radio show, Featured on the RTE consumer show and Cavan TV. Technology reviewer and blogger.Part time actor and security professional and brutally honest when it comes to opinions.