Lightmeter: Film & Logbook

Vadim Turko

In-app purchases

About this app

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

**ACCURATE EXPOSURES**

• Reflected metering using your phone’s camera
• Incident metering using the built-in light sensor
• EV calibration for consistent, precise results
• Fractional stops (½, ⅓) for fine control

**ADVANCED TOOLS**

• ISO from 3 to 25,600 — full range for any situation
• ND filter support and long-exposure timer with reciprocity correction
• Spot metering with live histogram
• 35 mm equivalent and medium-format focal length display
• Color filter preview for accurate B&W film visualization
• Pinhole camera support with custom f-numbers
• Built-in library of 20+ films; add your own and use push/pull
• Equipment profiles for cameras, lenses, and pinhole — including medium format

**FAST & FLEXIBLE**

• One-tap exposure calculation
• Customizable metering layout
• Dark mode and haptic feedback

**PHOTO LOGBOOK**

• Record exposure settings, location, and notes for every shot
• Keep all shooting data organized and easy to find

**PERSONALIZED INTERFACE**

• Light, Dark, or System theme
• Material You dynamic colors
• Custom primary color

Download Light Meter & Logbook for accurate exposures and a complete shooting record — all in one app.

Ratings and reviews

Great App, great "Pro" Price. A couple of suggestions: 1. More film choices or allow the user to add their own films. It doesn't have to correct, but it's nice for the logbook 2. Categorize the Logbook photos by Camera or Film, or Something. I use this app for Many Cameras. 3. Easier way to delete logbook entries, like after developing. Its a hassle to select each poto individually. Keep up the good work!! And Everyone: BUY PRO and support development!! :)

I tried to write a long, beaming review, but I hit the char limit. So I'll cut to the chase. Excellent app, almost perfect. Ad-free: developer after my own heart. Thanks much: donate? I'd like to humbly suggest somewhat deeper customizability. I'd love to be able to manually specify min/max apertures & shutter speeds, select/deselect shown films in the picker list, and—the "killer feature"—optionally specify limited apertures & shutter speeds, for those cameras with more granualar controls.

Clean and useful free features, but I can't recommend the paid version enough. Just the light meter features are great but having a digital photo log of every film photo is amazing. Camera profiles, film selection, clean design and good performance, this app is THE companion to film photography. I don't know how or if this would work but it would be super cool if it should copy the EXIF data into a scanned film photo.

What’s new

- Added zoom lens support in equipment profiles with optional full-device zoom override
- Improved camera control responsiveness
- Improved camera stability during startup and screen transitions on some devices
- Minor bug fixes and improvements