Off Speed Exposure Comparison | Multi-Camera Exposure Comparison | Optical Density to ND Factor Converter

MatchStop: Exposure Comparison is a comparison tool built for camera professionals working across multiple cameras on set. Quickly compare exposure values between two or three cameras, calculate slow motion exposure adjustments, and convert ND filter values — all in one app.

Whether you're matching a B camera to your hero, planning a high-speed shot, or working out ND equivalents on the fly, MatchStop gives you the numbers you need without the mental math.

Features

- Compare exposure settings across up to three cameras simultaneously

- Input FPS, ISO, Shutter, T-stop, ND, and POLA values for each camera

- Instantly see exposure differences in stops, showing over or underexposure relative to your hero camera

- Slow motion exposure comparison for high frame rate shooting

- ND filter converter for quick value translations

Built for Privacy

MatchStop: Exposure Comparison respects your privacy completely:

No user accounts required
No data collection
No third-party integrations or tracking
No in-app purchases
All calculations happen locally on your device

Important

MatchStop: Exposure Comparison is a comparison tool only. It is not intended for setting proper camera exposure. Always use a dedicated light meter or your camera's built-in metering tools to determine correct exposure for your shot. MatchStop is designed to help you understand the relationship between camera settings, not replace professional metering equipment.

Who It's For

Cinematographers, camera operators, DITs, ACs, and anyone working with multiple cameras who needs fast, reliable exposure comparison on set.

Developed by Project Dead Channel