I used a 10 stop ND filter on this set 
ƒ/13.0, 20.0 mm, 240 sec exp, ISO 50, Bulb
https://farm3.staticflickr.com/2913/14394104353_baf892b351_h.jpg
ƒ/11.0, 17.0 mm, 232 sec exp, ISO 50, Bulb
https://farm4.staticflickr.com/3868/14369913551_9a2e596276_h.jpg
ƒ/11.0, 17.0 mm, 300 sec exp. ISO 50, Bulb

Thanks all for looking and for commenting 
