LX (/lʌks/) is a simple light meter app.

Features

• A simple, beautiful, and intuitive user interface
• Fix either the aperture or shutter speed and check the corresponding value for proper exposure
• Adjust the EV value to see the live camera image change in brightness—helpful for visualizing how your photo will turn out
• Measure exposure at the point you tap—ideal for checking exposure in scenes with high contrast
• Flash meter mode for finding the right settings for manual flash photography
• No ads, one-time purchase