Light Meter by WBPhoto 5.4.1
The essential light meter app for film and digital photography.
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About Light Meter by WBPhoto
The essential light meter app for film and digital photography. Turn your phone into a precision spot meter trusted by 400,000+ photographers worldwide.
PRECISION EXPOSURE METERING
• Spot meter with tap-to-focus exposure points
• Multi-point spot metering — pin and compare dynamic range
• Zone System metering — assign zones (0–X) to readings
• Exposure preview for compensation and ND offsets
• Volume button to start/stop metering
• Calibrated against professional Gossen and Sekonic meters
ZONE PLACEMENT CALCULATOR
• Place readings on zones, see target exposure instantly
• Grayscale swatches show how each reading renders
• Dynamic range warnings for high-contrast scenes
• Send directly to Bracket Calculator
AR RANGEFINDER
• Point at your subject, read distance in feet or meters
• Perfect for manual focus film cameras with no built-in rangefinder
• LiDAR precision on iPhone Pro (centimetre accuracy up to 5 m)
• ARKit scene tracking on all other supported iPhones
• Precise mode for the exact number; Zone mode for macro/near/mid/far
• Send readings directly into the Depth of Field Calculator
YOUR COMPLETE PHOTOGRAPHY TOOLKIT — 13 CALCULATORS
• Rangefinder — AR subject-distance measurement
• DOF — Hyperfocal distance, near/far focus limits
• Reciprocity — 40+ film stocks (Portra, Tri-X, HP5, CineStill, and more)
• Bracket Calculator — Exposure bracketing with custom steps
• Pinhole Calculator — Effective f-stop for pinhole cameras
• EV/LV Converter • White Balance • Bellows Factor
• Flash Guide Number • EXIF Reader • Angle of View
• Zone Placement • Sunny 16
GOLDEN HOUR & BLUE HOUR
• Sunrise, sunset, golden hour, and blue hour times
PROFESSIONAL FEATURES
• Custom ISO, shutter, f-stop ranges
• Half-stop and third-stop increments
• Shutter angle mode for cinematographers
• Live histogram • ND filter display
• Foot-candles and Lux • Exposure timer
SAVE & ORGANIZE
• Log exposures with GPS and notes
• Hardware profiles for your gear
• Export and reference past readings
Film SLR • Medium format • Large format • Pinhole • Digital mirrorless
50+ languages • Home screen and lock screen widgets • No internet required
License: Commercial
PRECISION EXPOSURE METERING
• Spot meter with tap-to-focus exposure points
• Multi-point spot metering — pin and compare dynamic range
• Zone System metering — assign zones (0–X) to readings
• Exposure preview for compensation and ND offsets
• Volume button to start/stop metering
• Calibrated against professional Gossen and Sekonic meters
ZONE PLACEMENT CALCULATOR
• Place readings on zones, see target exposure instantly
• Grayscale swatches show how each reading renders
• Dynamic range warnings for high-contrast scenes
• Send directly to Bracket Calculator
AR RANGEFINDER
• Point at your subject, read distance in feet or meters
• Perfect for manual focus film cameras with no built-in rangefinder
• LiDAR precision on iPhone Pro (centimetre accuracy up to 5 m)
• ARKit scene tracking on all other supported iPhones
• Precise mode for the exact number; Zone mode for macro/near/mid/far
• Send readings directly into the Depth of Field Calculator
YOUR COMPLETE PHOTOGRAPHY TOOLKIT — 13 CALCULATORS
• Rangefinder — AR subject-distance measurement
• DOF — Hyperfocal distance, near/far focus limits
• Reciprocity — 40+ film stocks (Portra, Tri-X, HP5, CineStill, and more)
• Bracket Calculator — Exposure bracketing with custom steps
• Pinhole Calculator — Effective f-stop for pinhole cameras
• EV/LV Converter • White Balance • Bellows Factor
• Flash Guide Number • EXIF Reader • Angle of View
• Zone Placement • Sunny 16
GOLDEN HOUR & BLUE HOUR
• Sunrise, sunset, golden hour, and blue hour times
PROFESSIONAL FEATURES
• Custom ISO, shutter, f-stop ranges
• Half-stop and third-stop increments
• Shutter angle mode for cinematographers
• Live histogram • ND filter display
• Foot-candles and Lux • Exposure timer
SAVE & ORGANIZE
• Log exposures with GPS and notes
• Hardware profiles for your gear
• Export and reference past readings
Film SLR • Medium format • Large format • Pinhole • Digital mirrorless
50+ languages • Home screen and lock screen widgets • No internet required
License: Commercial
| Release info | Update on Oct 26, 2026 |
|---|---|
| Release notes | • Add AR Rangefinder — measure subject distance for manual film cameras (LiDAR on iPhone Pro; ARKit on all others) • Send rangefinder readings directly into the Depth of Field Calculator • Add Multi-Point Spot Metering — long-press to pin and compare exposure readings • Add Zone Placement Calculator — place readings on zones, see target exposure • Add Bracket Calculator for exposure bracketing • Add Pinhole Calculator for pinhole cameras • Add Share as Image for social sharing • Add Zone System metering for camera meter • Add Exposure Preview for adjust and ND offsets • Add 20+ new film stocks to reciprocity calculator • Add volume button to start/stop metering • Updated camera meter UI with icon controls • Quick settings access from meter screens • Refreshed settings design • Bug fixes and performance improvements |
| Listing data | App Store |
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