Lee Filters ProGlass IRND Instruction Booklet page 5

Exposure Guide
Normal
0.6ND
Shutter
(2 stop)
Speed
1/2000sec 1/500sec
1/1000sec 1/250 sec
1/500sec 1/125 sec
1/250sec 1/60 sec
1/125sec 1/30 sec
1/60sec 1/15 sec
1/30sec 1/8 sec
1/15sec 1/4 sec
1/8sec 1/2 sec
1/4sec 1 second
1/2sec 2 seconds
1 seconds 4 seconds
2 seconds 8 seconds
0.9ND 1.2ND
(3 stop) (4 stop)
1/250 sec 1/125 sec
1/125 sec 1/60 sec
1/60 sec 1/30 sec
1/30 sec 1/15 sec
1/15 sec 1/8 sec
1/8 sec 1/4 sec
1/4 sec 1/2 sec
1/2 sec 1 second
1 second 2 seconds
2 seconds 4 seconds
4 seconds 8 seconds
8 seconds 15 seconds
15 seconds 30 seconds
1.8ND 3.0ND
(6 stop) (10 stop)
1/30 sec 1/2 sec
1/15 sec 1 second
1/8 sec 2 seconds
1/4 sec 4 seconds
1/2 sec 8 seconds
1 second 15 seconds
2 seconds 30 seconds
4 seconds 1 minute
8 seconds 2 minutes
15 seconds 4 minutes
30 seconds 8 minutes
1 minute 16 minutes
2 minutes 32 minutes
4.5ND
(15 stop)
15 seconds
30 seconds
1 minute
2 minutes
4 minutes
8 minutes
16 minutes
32 minutes
1 hr, 4 mins
2 hrs, 8 mins
4 hrs, 16 mins
8 hrs, 32 mins
17 hrs, 4 mins