Base Shutter Speed (without filter)

ND Filter Strength

10 stops

Effect Guide

Calculated Exposure

Base Shutter

1/125s

ND Factor

1,024x

New Shutter Speed

8.2s

Flowing water (silky)

Rivers, streams, fountains

Target range: 1/2s - 8s
Recommended: 2s

Exposure too long for this effect. Use less ND or faster base shutter.

Quick Reference Table

BaseND2ND8ND32ND256ND8000ND100000
1/10001/500s1/125s1/31s1/4s8.2s1m 39s
1/5001/250s1/63s1/16s1/2s16.4s3m 19s
1/2501/125s1/31s1/8s1s32.8s6m 37s
1/1251/63s1/16s1/4s2s1m 6s13m 15s
1/601/30s1/8s1/2s4.3s2m 17s27m 36s
1/301/15s1/4s1.1s8.5s4m 33s55m 11s
1/151/8s1/2s2.1s17.1s9m 6s1h 50m
1/81/4s1s4s32s17m 4s3h 26m

Long Exposure Tips

  • Use a tripod: Essential for sharp results
  • Remote release: Prevents camera shake
  • Mirror lockup: Reduces vibration on DSLRs
  • Focus first: Then switch to manual focus
  • Check histogram: Long exposures may need adjustment
  • LENR: Enable Long Exposure Noise Reduction for 30s+
  • Dark frames: Shoot with lens cap on for manual noise reduction
  • Spare batteries: Long exposures drain batteries quickly