ND Meter by Camera Butter
Light Meter & ND Filter Tool
About
This tool uses your phone's camera to measure light and recommend the ideal ND filter strength, shutter speed, and ISO for professional-looking video. It supports various action cameras and drones, helping you achieve cinematic motion blur and perfect exposure for any scene.
What's New in ND Meter by Camera Butter
1.10
January 10, 2026
Thank you for using ND Meter by Camera Butter. This update includes improved layout and compatibility with the settings pages.
Developer apps
FAQ
What is ND Meter used for?
ND Meter helps you determine the correct ND filter strength, shutter speed, and ISO settings to achieve cinematic motion blur and perfect exposure for your action camera or drone footage.
Does ND Meter work with my camera?
Yes, ND Meter supports a variety of action cameras and drones, including popular brands like GoPro, DJI, and Insta360, ensuring compatibility for your filming needs.
How does ND Meter measure light?
ND Meter utilizes your smartphone's camera to perform real-time light measurements of the scene, providing instant data for accurate filter and setting recommendations.
Can I adjust motion blur preferences in ND Meter?
Yes, ND Meter allows you to adjust your motion blur preference, giving you control over the desired level of blur for your cinematic shots.
Does ND Meter offer visual feedback?
Yes, ND Meter provides a visual histogram and exposure feedback, allowing you to see and understand the lighting conditions in real-time.
Is ND Meter free to use?
Yes, ND Meter is available for free, offering its full range of features without any cost to the user.
Does ND Meter have ads?
No, ND Meter does not contain advertisements, providing an uninterrupted user experience.
What devices is ND Meter available on?
ND Meter is currently supported on iPhone devices.
