ND Filter & Camera Exposure

Compensate shutter speeds across 1–15 ND stops with density naming.

Target Exposure
4.10 sec
Stop Ladder
1 stopND100015 stops
EV Shift
−10 EV
Filter Density
×1024
10 stops = ND1000 — the classic daylight long-exposure filter.
Did you know?
ND filter numbers are exponential — each 3 stops multiplies light reduction by 8×, so ND1000 blocks 99.9% of incoming light.

Formula

Target Speed = Base Speed × (2 ^ ND_Stops)

FAQs

When to use ND1000?
Smooths water motion and streaky clouds in bright daylight — typically 8–10 stops.