Light Meter & Logbook

Turn your phone into a professional light meter and photo logbook — ideal for film, digital, medium-format, and pinhole photography.

ACCURATE EXPOSURES

• Reflected metering with your camera

• Incident metering with the light sensor

• EV calibration for precision

• Fractional stops (1/2, 1/3) for fine-tuning

ADVANCED TOOLS

• ISO range from 3 to 25,600

• ND filter and long-exposure timer

• Spot metering with histogram

• 35mm equivalent focal length display

• Medium-format focal length conversion support

• Apply color filters to the live preview for accurate B&W film visualization

• Pinhole camera support with custom f-numbers

• Built-in library of 20+ films with the option to add your own

• Push/pull processing support

• Reciprocity correction for long exposures

FAST & FLEXIBLE

• One-tap exposure calculation

• Customizable metering screen layout

• Equipment profiles for cameras, lenses, and pinhole setups — now including medium-format systems

• Dark mode and haptic feedback

COMPLETE PHOTO LOGBOOK

• Record exposure settings, location, and notes

• Keep all shooting data organized and accessible

PERSONALIZED INTERFACE

• Light, Dark, or System themes

• Material You dynamic colors

• Custom primary color

Download Light Meter & Logbook to achieve accurate exposures and keep every shot documented — all in one powerful app.