Calculate exposure settings using system theory. Measure shadow and highlight zones. Input film ISO and shutter speed. Determine aperture value and adjust based on calculated results.
by Jouni Erola★ 3.05 ratingsPhoto & Video$0.99Data updated 2026-09-06
Use a phone's camera to the height of objects like trees and buildings. Calculate height based on distance and angle. Save and share measurements. Export data as images or text.
Determine RGB, HSV, and Hex values for any color. Tap on a photo to extract color values. Adjust red, green, and blue sliders to customize colors. Edit values directly and view calculated results. Use grayscale meter to find neutral color mixes.
Measure colors in XYZ and Lab color spaces from any photo area. Calculate distance between two colors in Lab. Adjust chromaticity values to match iPhone4 camera characteristics. Supports calibration using color checkers.
