ND Meter by Camera Butter

Measure light, pick the perfect ND filter and camera settings, and get cinematic motion blur - powered by Camera Butter.

ND Meter by Camera Butter helps you choose the correct ND filter and camera settings so you can nail perfect exposure and cinematic motion blur for your GoPro, DJI, Insta360, or other action camera or drone.

Using your phone’s camera, ND Meter measures scene brightness and instantly recommends the ideal ND filter strength (ND4–ND64), shutter speed, and ISO settings to achieve professional-grade video.

Whether you’re filming mountain biking, surfing, FPV drone flights, or cinematic b-roll, ND Meter helps you keep your shots smooth, detailed, and film-like - every time.

Key Features • Real-time light measurement using your phone camera • Smart recommendations for ND filter, ISO, and shutter • Support for multiple cameras (GoPro, DJI, Insta360, etc.) • Adjustable motion-blur preference and exposure compensation • Separate profiles per camera and activity • Optional GoPro Labs QR code generator to apply settings instantly • Visual histogram and exposure feedback • Works great for FPV pilots, vlogging, filmmakers, action sports enthusiasts and content creators

Why Use ND Meter? ND filters are essential for cinematic motion blur — but choosing the right one on location can be tricky. ND Meter takes the guesswork out of it, giving you accurate, repeatable results in seconds.

About Camera Butter Camera Butter creates premium ND filters and accessories designed for action cameras and drones. Learn more at CameraButter.com