Light Meter - Lux, Exposure3.5.0
Publisher Description
Measure illumination (light intensity) and get exposure settings for your camera
Precise Light Meter with Built-In Exposure Calculator
Achieve perfect exposure every time with professional-grade accuracy and an intuitive design. Trusted by photographers, filmmakers, plant enthusiasts, and lighting professionals worldwide.
📷 INTERACTIVE EXPOSURE CALCULATOR
Get instant, optimal camera settings with real-time adjustments for aperture (f-stop, f-number), shutter speed (exposure time), ISO, +/- exposure compensation, and filters.
Choose between full stops, half stops, and third stops individually for each parameter. Lock any setting to maintain creative control. Perfect for SLR, analog, manual, vintage, and film cameras.
🎬 SHUTTER ANGLE FOR VIDEO & FILM
Set your frame rate and shutter angle, or use the standard 180° rule, to automatically calculate the optimal shutter speed for natural motion blur.
🎯 PROFESSIONAL ACCURACY
Pre-calibrated to match three professional light meters, with optional device-specific calibration for even greater precision.
📐 DUAL MEASUREMENT MODES
Incident measurement using your device's light sensor and reflective measurement with the rear/front cameras. Resizable measurement area with spot metering for precise control.
🌙 SUPERIOR LOW-LIGHT PERFORMANCE
Unlike other smartphone light meters, this app excels in very low light conditions, even when measuring with the cameras (reflective mode). Measures values below 1 lux, 0.1 fc, and nearly down to -2 EV.
🟢 COMPREHENSIVE FILTER SUPPORT
Full support for ND (neutral density) filters, color filters, IR filters, CPL/PL polarizing filters, and custom filters.
💡 MULTIPLE MEASUREMENT UNITS
Measure light intensity (illumination/brightness) in Lux (lx, lumens/m²), Foot-Candles (fc), and Exposure Value (EV).
💾 SAVE MEASUREMENTS
Store unlimited readings with timestamps, custom notes, and complete camera settings for future reference and comparison.
🌟 VERSATILE APPLICATIONS
Beyond photography and filmmaking, widely used for horticulture 🌱, plant growing 🪴, aquariums 🐠, terrariums 🦎, art galleries 🖼️, museums 🏛️, offices 🏢, and workspaces 💼.
🕯️ ALL LIGHT SOURCE TYPES
Accurately measures LEDs, incandescent bulbs, fluorescent lights, halogen lamps, natural sunlight, laser diodes, OLEDs, and any other artificial or ambient lighting.
🇬🇧 40 LANGUAGES SUPPORTED
Fully localized interface and comprehensive user documentation in 40 languages, including English.
⚙️ FULLY CUSTOMIZABLE
Tailor the app to your workflow, including high-contrast mode for accessibility.
✉️ RESPONSIVE DEVELOPER SUPPORT
Questions or feature requests? Email apps@contechity.com — you'll get a personal response!
Turn your phone into a professional light meter today!
About Light Meter - Lux, Exposure
The company that develops Light Meter - Lux, Exposure is Contechity AB. The latest version released by its developer is 3.5.0.
To install Light Meter - Lux, Exposure on your Android device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-12 and was downloaded 7 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Light Meter - Lux, Exposure as malware as malware if the download link to com.contechity.lux_meter is broken.
How to install Light Meter - Lux, Exposure on your Android device:
- Click on the Continue To App button on our website. This will redirect you to Google Play.
- Once the Light Meter - Lux, Exposure is shown in the Google Play listing of your Android device, you can start its download and installation. Tap on the Install button located below the search bar and to the right of the app icon.
- A pop-up window with the permissions required by Light Meter - Lux, Exposure will be shown. Click on Accept to continue the process.
- Light Meter - Lux, Exposure will be downloaded onto your device, displaying a progress. Once the download completes, the installation will start and you'll get a notification after the installation is finished.
Program Details
System requirements
Download information
Pricing
Version History
version 3.5.0
posted on 2026-10-12
• Saved measurements can now be folded per date, giving you a better overview when you have many measurements.
• Misc minor improvements.
This feature was suggested by a user. Got an idea too? Share it in a review!
version 3.4.0
posted on 2026-08-27
• Min aperture extended to f/512.
• Stability improvements.
Got an idea for the app? Please share it in a review!
version 3.2.0
posted on 2026-06-16
• Added experimental Flash Mode: Measure the brightness of camera flashes and get the aperture for a correct flash exposure, plus the ratio between ambient light and camera flash light.
• Updated aperture notation to the standard f/ format.
Feedback is always welcome in reviews!
version 3.0.0
posted on 2026-06-05
• Configurable Exposure Picker Layout - You can now choose which of Aperture, Speed, ISO, Exposure compensation, and filters appear as scroll wheels, dropdown menus, or shall be hidden.
Is your dream feature still missing? Please let me know in your review here on the App Store!
version 3.1.0
posted on 2026-06-05
• More fine-grained control over maximum aperture.
• ISO range expanded down to ISO 0.8.
• Optical density and exposure value information added for all ND filters.
These features were suggested by our users. Have an idea? Share it in a review!
version 2.5.1
posted on 2026-04-29
• Added log ISO profiles to better support cameras with N-Log, S-Log3, C-Log and more.
• Added medium format crop factors for the blur warnings.
These features were suggested by users. Got an idea too? Share it in a review!
version 2.3.0
posted on 2026-03-04
• Added support for shutter speeds scales found in classic cameras, with 28 built-in presets.
• Added support for fully user-defined shutter speed scales.
• Made the gauge area collapsable for a more compact view.
• Clearer indication of frozen values with red lock icons and other minor improvements.
version 2.4.0
posted on 2026-03-04
• Added blur warning based on the reciprocal rule for slow shutter speeds.
• Added the ability to hold measurements using the volume up button.
• Added the ability to save measurements using the volume down button.
These features were suggested by users. Got an idea too? Share it in a review!
version 2.2.4
posted on 2026-02-18
• Added support for freezing measurements.
• Added support for configuration of min/max aperture, shutter speed, and ISO.
• Added support for exact shutter angle mode speeds (e.g., 1/48).
