Base Exposure (without filter)
Shutter Speed Input Mode
Common Shutter Speeds
Custom Value
Shutter Speed
30 s
25 s
20 s
15 s
13 s
10 s
8 s
6 s
5 s
4 s
3.2 s
2.5 s
2 s
1.6 s
1.3 s
1 s
1/1.3 s
1/1.6 s
1/2 s
1/2.5 s
1/3.2 s
1/4 s
1/5 s
1/6.4 s
1/8 s
1/10 s
1/13 s
1/16 s
1/20 s
1/25 s
1/30 s
1/40 s
1/50 s
1/64 s
1/80 s
1/100 s
1/125 s
1/160 s
1/200 s
1/250 s
1/320 s
1/400 s
1/500 s
1/640 s
1/800 s
1/1000 s
1/2000 s
1/4000 s
1/8000 s
Custom Shutter Speed (seconds)
ND Filter Selection
Filter Input Mode
Common ND Filters
Custom Stops
Stack Multiple Filters
ND Filter
ND2 (1 stop)
ND4 (2 stops)
ND8 (3 stops)
ND16 (4 stops)
ND32 (5 stops)
ND64 (6 stops)
ND128 (7 stops)
ND256 (8 stops)
ND512 (9 stops)
ND1000 (10 stops)
ND2000 (11 stops)
ND4000 (12 stops)
ND8000 (13 stops)
ND32000 (15 stops)
ND100000 (16.5 stops)
ND1000000 (20 stops)
Custom ND Stops
Stacked Filters
Select multiple filters to stack. Their stops will be added together.
ND2 (1 stop)
ND4 (2 stops)
ND8 (3 stops)
ND16 (4 stops)
ND32 (5 stops)
ND64 (6 stops)
ND128 (7 stops)
ND256 (8 stops)
ND512 (9 stops)
ND1000 (10 stops)
Calculate
Reset
Settings
Settings
Show step-by-step derivation
Show ND filter reference table
Time Display Format
Auto (best fit)
Always Seconds
Always Minutes:Seconds
Always Hours:Minutes:Seconds
Results
Formula
Step-by-Step Derivation
ND Filter Reference Table
Filter
Stops
Factor
New Exposure