NDFExpo is your go-to tool for mastering light and motion, built by a creator for creators. Stop guessing settings and dial in the perfect ND filter or shutter speed in an instant.
It's a fast, simple, and powerful ND Filter and Exposure Calculator that helps you master light and motion. Whether you need to find the right filter or the perfect shutter speed, NDFExpo solves the calculation instantly.

WHAT IT DOES:
- EXPOSURE CALCULATOR Already have an ND filter on? Just enter your camera's base shutter speed, and the app will calculate the perfect long exposure time for you, down to the second.
- ND FILTER CALCULATOR Want that cinematic 180° rule (e.g., 1/50s)? NDFExpo tells you exactly which ND filter (ND8, ND16, ND32) to use in your current light.
- BUILT-IN LONG EXPOSURE TIMER Once you have your calculated time, use the integrated timer to get your shot right. Perfect for 30-second, 2-minute, or even longer shots.
- DEDICATED DJI DRONE MODE Standard shutter speeds don't match your drone? No problem. Enable the DJI-optimized scale to see calculations that perfectly match your DJI drone.

ADDITIONAL FEATURES:
- Clean, simple, and fast interface.
- Light & Dark Modes for any lighting condition.
- Customizable timer alerts.

PERFECT FOR:
- Drone Videographers & Photographers
- Landscape Photographers
- Filmmakers & Content Creators