Simply doesn't work at all
Doesn't matter what shutter speed or ND filter density is set the shutter speed at the top of the page always says 00.00.00 If you tap the timer it just keeps counting up until you stop it. And even if it did work the shutter speed settings wheel is too coarse. It goes in 1 stop increments (1/400, 1/2000, 1/1000 etc) so if you have a shutter speed of let's say 1/1600 or 1/1200 you would just have to take a nearest guess. But as it doesn't work at all I guess this is irrelevant.
