ND Filter Calculator
Calculate your new exposure settings when using neutral density filters.
Current Exposure Settings
ND Filter Selection
New Exposure Settings
Shutter Speed
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Aperture
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ISO
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How ND Filters Work
Neutral Density (ND) filters reduce the amount of light entering your camera without affecting colors. Each "stop" of ND filter halves the light, requiring you to compensate by:
- Slower shutter speed - Most common for long exposures (waterfalls, clouds)
- Wider aperture - For shallow depth of field in bright light
- Higher ISO - Rarely used, as it adds noise
- Balanced - Distribute the change across all three settings
ND Filter Reference
| Filter | Stops | Light Reduction | Common Use |
|---|---|---|---|
| ND8 | 3 stops | 12.5% | Portraits in bright sun |
| ND64 | 6 stops | 1.56% | Waterfalls, moving water |
| ND1000 | 10 stops | 0.1% | Long exposures in daylight |
| ND1000000 | 20 stops | 0.0001% | Solar photography |