GoPro Long Exposure pictures/timelapse hack

Get those awesome long exposure timelapses or pictures with your GoPro HERO3 Black or Plus Black using this hack.
To use it, first download it to the gopro sd card, change the parameters and save it.
Go to the github repo hack here
Here is a guide on how to download the hack to your gopro
The hack will take a picture every A (+2) seconds. Is a timelapse.
The code looks like this


t app appmode photo
sleep 1
t ia2 -ae still_exp P X Y
sleep 1
t app button shutter PR
sleep A
d:\autoexec.ash
REBOOT yes

Key:
P: ISO
X: Exposure time
Y: Iris (exposure time also?)
A: timelapse interval

Exposure time/iris number codes:

Write the number corresponding to desired exposure time in the autoexec.ash file

Value (number to write in hack file) Exposure Time (seconds)
2 8,5
5 7,7
15 7,3
20 7,1
25 6,9
30 6,8
39 6,4
40 6,3
45 6,2
50 6,1
75 5,3
85 5
95 4,7
99 4,6
100 4,6
130 3,9
160 3,3
200 2,7
255 2
400 1
500 0,56
600 0,33333
1000 0,000158328

Pictures taken by users: