Graduated ND Filter Calculator
Find the right graduated ND filter to balance bright skies with darker foregrounds.
Scene Settings
Recommended GND Filter
GND 0.9 (3 stops)
3.0 stops difference
Scene Analysis
Sky EVEV 15
Foreground EVEV 12
EV Difference3.0 stops
Filter Selection
Soft Edge
Gradual transition, best for uneven horizons (mountains, trees)
Position TransitionMiddle
When to Use Each Type
Hard Edge: Ocean horizons, flat landscapes
Soft Edge: Mountains, trees, uneven horizons
Reverse Grad: Sun at horizon (sunrise/sunset)
Blender: Versatile, complex scenes
Tips
- Use a filter holder for precise positioning
- Rectangular filters allow vertical adjustment
- Stack with solid ND for longer exposures
- Consider digital blending as an alternative
- Rotate the filter to match your horizon angle
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.