Light Meter - Lux, Exposure

Contechity

In-app purchases

About this app

Precise Light Meter with Built-In Exposure Calculator

Achieve professional-grade lighting for photography, filmmaking, plant care, and lighting design with an intuitive interface and precise accuracy.

📐 Dual Measurement Modes
Supports both Light sensor (incident measurement) and the rear/front cameras (reflective measurement / spot metering).

📷 Interactive Exposure Picker
Fine-tune your camera's exposure settings — aperture (f-stop), shutter speed (exposure time), and ISO — with real-time adjustments. Ideal for DSLR, mirrorless, film, and video cameras.

🎯 Accuracy You Can Trust
Pre-calibrated to match three professional light meters, with a built-in calibration feature for device-specific fine-tuning if needed.

📏 Multiple Units of Measurement
Measure light intensity in Lux (lx, lumens/m2), Foot-Candles (fc), and Exposure Value (EV).

▶️ Real-Time Measurements
Get instant feedback with continuous real-time light measurements.

👁️ Logarithmic Scale
A scale that reflects human eye perception for natural results.

🌐 Multilingual Support & Documentation
Available in 40 languages with comprehensive user guides included.

⚙️ Fully Customizable
Tailor the app settings to your specific needs.

✉️ Dedicated Support
Got questions or feature requests? Email me at [e-mail] — I'll personally respond!

Turn your phone into a professional light meter today!

Ratings and reviews

Love the app makes taking the perfect picture so much easier and definitely less expensive then buying a dedicated light meter. The other day I was think that if there was a way to add camera profiles that would make this so much better than it already is. We all know that different cameras react differently. Or maybe lens profiles. At the end of the day great program as is. Thank you for developing it and your other great products also.

This is a well designed and modern looking metering app. Thank you for responding to my inquiry relating to the absence of ISO 64, and hope to see its addition soon. Update: 5/28/25 Huge thanks for the addition of ISO 64, Fantastic App!!

I've checked this light meter against my siconic L308, all readings are spot on aperture shutter speed and ISO. well, worth the small cost, I would highly recommend.

What’s new

• Added support for Shutter Angle, including the '180° rule'.
• Added support for color filters and other special filters.
• Added support for aperture, speed, ISO, filters and compensation in saved measurements.