Light Meter by WBPhoto
Pro Light Meter
$6.99 · Designed for iPad. Not verified for macOS.
The #1 light meter app trusted by 400,000+ photographers worldwide.
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
YOUR COMPLETE PHOTOGRAPHY TOOLKIT — 12 CALCULATORS
• 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
• 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
The developer, William Blaschko, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- William Blaschko
- Size
- 46.7 MB
- Category
- Photo & Video
- Compatibility
Requires iOS 12.1 or later.
- iPhone
Requires iOS 12.1 or later. - iPad
Requires iPadOS 12.1 or later. - iPod touch
Requires iOS 12.1 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 - WBPhoto
