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.