ND Filter Expert Pro
3M Company / Eve&Else
About this app
- Age 10
- Updated Nov 8, 2025
- OS IOS / Android
Editor reviews
ND Filter Expert Pro is a precision ND filter calculator and long‑exposure toolkit for photographers. Instantly convert base exposure to the correct long shutter time when using single or stacked neutral density filters. Built for landscape, seascape, cityscape, and time‑lapse creators who need accurate, repeatable results on location.
Core features:
• Fast ND filter calculator: enter base exposure and select one or more ND filters to get the exact long exposure time, up to extreme stop values.
• Built‑in long exposure timer: large countdown with sound or vibration alerts and a Bulb mode helper for precise start and release.
• Presets and shoot log: save favorite filter stacks, record settings and notes, and repeat proven setups with confidence.
Perfect for users searching for an ND filter calculator, long exposure photography, exposure calculator app, shutter speed helper, and neutral density filter utility.
Screenshots
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How to use:
1. Install and open ND Filter Expert Pro, then set your preferred units and alert style in Settings.
2. Meter your scene on the camera to find the base exposure, then enter shutter speed, aperture, and ISO into the app.
3. Select your ND filters by stop value or choose a saved filter stack, and review the calculated long exposure time.
4. Mount your filters, switch the camera to Bulb mode when needed, and tap Start Timer to run a precise countdown with alerts.
5. Save the setup as a preset and add notes to the shoot log for easy reference on future sessions.