ND Meter by Camera Butter

Camera Butter

About this app

ND Meter by Camera Butter helps you choose the correct ND filter and camera settings so you can achieve proper exposure and cinematic motion blur with your action camera or drone.

Using your phone’s camera, ND Meter measures scene brightness and provides clear recommendations for ND filter strength, shutter speed, and ISO based on your shooting conditions and preferences.

Whether you’re filming action sports, FPV drone flights, cinematic b-roll, or outdoor adventures, ND Meter removes the guesswork and helps you get
smooth, film-like footage consistently.

Key features:
• Light measurement using your phone’s camera
• ND filter recommendations
• Suggested shutter speed and ISO settings
• Adjustable motion-blur preference and exposure compensation
• Support for multiple cameras (GoPro, DJI, Insta360, and others)
• Optional GoPro Labs QR code generation to apply settings quickly
• Visual exposure feedback

Why use ND Meter?
ND filters are essential for cinematic motion blur, but choosing the right one on location can be difficult. ND Meter gives you fast, repeatable recommendations so you can focus on capturing great footage instead of guessing settings.

About Camera Butter
Camera Butter designs premium ND filters and accessories for action cameras and drones.

What’s new

Initial release of ND Meter.
Helps determine the correct ND filter and camera settings for cinematic motion blur.