Master Your Exposure.
Transform your smartphone into the ultimate precision photography toolkit. Built for digital purists and analog traditionalists.
Precision Spot Meter
Turn your phone’s camera into a professional-grade spot meter. Touch anywhere on the screen to analyze reflected light in real-time and visualize the Ansel Adams Zone System through a professional live HUD.
Explore Spot MeterTrue Incident Meter
Harness your device’s hardware ambient light sensor to measure the exact EV falling directly onto your subject. Bypass reflectance completely and nail the exposure in the most challenging lighting conditions.
Discover Incident ModeExposure Lab
The ultimate exposure workstation. Solve the exposure triangle on the fly, stack extreme ND filters seamlessly, and let our engine automatically calculate complex Reciprocity Failure times for your favorite film stocks.
Enter the Lab
Zone Planner
Beyond metering. A digital sketchbook for the thinking photographer. Manually map your contrast ratios and pre-visualize where your shadows and highlights will fall before you even touch the shutter.
See how it worksSunny 16 Engine
Master the art of sensorless calculation. Trust your eyes and estimate ambient light using intuitive visual scenarios. Perfect for training your instinct or shooting fully analog without batteries.
Learn visual estimation
Optics Lab
Master the physics of your glass. Dedicated tools to calculate Depth of Field, Hyperfocal distance, and magnification ratios for macro extension tubes.
Explore OpticsMetadata Inspector
Precision forensics. Audit the hidden DNA of any capture with a 16-point technical breakdown of proprietary RAW headers and standard EXIF data.
Audit MetadataReady to master light?
Available for free (ad-supported).