NiSi Cinema 4x5.65 Hard vs Soft Edge Grad ND: Which to Choose
By NiSi Filters Australia | Published: 2026-10-28
Category: Comparisons
Compare the NiSi Cinema 4x5.65 Nano IRND Hard-Edge and Soft-Edge Graduated 1.2 filters. Learn which edge type suits your scene and avoid common grad ND mistakes.
Quick answer
Choose the hard-edge NiSi Cinema 4x5.65 Nano IRND Graduated 1.2 when your horizon is clean and straight; choose the soft-edge version when the transition area includes uneven detail like mountains, buildings, or trees.
Why the edge type matters
Both the hard-edge and soft-edge NiSi Cinema 4x5.65 Nano IRND Graduated 1.2 filters reduce exposure in selective areas, but the transition between dark and clear glass is where they differ. A hard-edge grad creates a sharp, defined boundary, while a soft-edge grad spreads the transition over a wider zone.
This difference affects how the filter blends with your composition. If the transition line cuts through a busy subject, a hard edge can leave a visible line across the frame. A soft edge hides that line better, but it also reduces the filter's ability to hold back a bright sky right at the horizon.
When a hard edge works best
Seascapes and flat horizons are the classic use for a hard-edge graduated ND. The ocean horizon is straight and unbroken, so the sharp transition is easy to hide. The hard edge also lets you place the darkening effect exactly at the horizon line, which is useful when the sky is much brighter than the water.
When a soft edge is the better choice
Mountain ridges, city skylines, and forest lines rarely sit at a perfect horizontal angle. A soft-edge grad masks those irregularities because the transition spans a larger area. The trade-off is that you may need to position the filter slightly lower to ensure the brightest part of the sky is fully covered.
Hard edge vs soft edge: the decision rules
- Horizon type: Use the hard-edge filter for a flat, straight horizon (ocean, plains). Use the soft-edge filter for uneven horizons (mountains, cityscapes, treelines). If your horizon is mostly flat but has a few distant rocks, try the soft edge and position it slightly lower to cover the brightest sky.
- Transition visibility: The hard edge is more likely to show a visible line if it crosses a subject. The soft edge hides the line better but covers a wider area.
- Exposure control: The hard edge gives you precise control right at the horizon. The soft edge requires you to allow extra room for the transition, so the darkest part of the filter may sit above the horizon. When using the soft edge, check the histogram after the shot to confirm the sky is not overexposed.
Product facts
- NiSi Cinema 4×5.65” Nano IRND Soft-Edge Graduated 1.2 Filter (4 Stop): Soft-edged transition The gradual change in density helps hide the transition line when your scene has uneven features like mountains or buildings.
NiSi Cinema 4×5.65” Nano IRND Soft-Edge Graduated 1.2 Filter (4 Stop) - NiSi Cinema 4×5.65” Nano IRND Hard-Edge Graduated 1.2 Filter (4 Stop): Hard-edged transition The sharp line suits clean, straight horizons and lets you place the darkening effect precisely at the horizon.
NiSi Cinema 4×5.65” Nano IRND Hard-Edge Graduated 1.2 Filter (4 Stop)
Which filter fits your shooting style?
Best for
- Cinematographers and photographers shooting seascapes or flat horizons
- Anyone who needs precise placement of the ND transition at the horizon line
Not for
- Scenes with irregular horizons like mountains or city skylines, where the hard edge will be visible
- Compositions where you need to hide the transition across a busy midground
