i'm always confused which time is the right one in the output of (time ..)
so i printed the decoded time at beginning and end:
(38 6 22 7 7 2014 0 NIL 0)
(14 47 22 7 7 2014 0 NIL 0)
the time seems to be 41min, i.e. real time is the one i have to look at
Evaluation took:
  2436.135 seconds of real time
  6261.956000 seconds of total run time (5316.295000 user, 945.661000 system)
  [ Run times consist of 13.619 seconds GC time, and 6248.337 seconds non-GC time. ]
  257.04% CPU
  6,852,338,387,330 processor cycles
  1 page fault
  32,921,632,048 bytes consed

the number of camera images are 125x95, the framerate is 4.9 fps
there are 3 cameras, 2 with 1024x1024 and one with 600x600
the 600x600 camera has the longest exposure with 16.975ms