Light Meter & Logbook

In-app purchases
4.1
392 reviews
100K+
Downloads
Content rating
Rated for 3+
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About this app

Turn your phone into a professional light meter and photo logbook — ideal for film, digital, 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
• Pinhole camera support with custom f-numbers
• Built-in library of 20+ films with 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
• 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.
Updated on
29 Oct 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity and App info and performance
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.1
384 reviews
Bruce Burke
2 November 2025
This app is amazing. Gives me all available exposure possibilities in one chart for my C330s (full stop increments). Once calibrated (1/3 stop increments), it has been dead on. << Did you people who said it was inaccurate read that last statement? YOU NEED TO CALIBRATE IT against a known good light meter.
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Colin Cooper
30 August 2025
costs £4.59 to buy it once in the UK, in the US play store it's $1.99/month or $14.99/yr. lol. I would have bought it for £4.59, as it is, uninstalling.
3 people found this review helpful
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Prthik Karthikeyan
29 August 2023
Works good for my 60 year old Zeiss SLR. Software has a small bug, sometimes when clicking the shutter button the software gets stuck in infinite loading and has to be closed. Minor issue, not really problematic. Otherwise good lightmeter, very very useful method of showing all aperture-shutter speed combos after taking a single reading. 👍👍 would've been 4.9 stars if I could put that
2 people found this review helpful
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What's new

- Fixed camera preview and histogram display on some devices
- Minor bug fixes and improvements