Originally Posted by WiLL
just wondering, what kind of settings are needed for 30 mins exposures during the day?
Filters...lots of filters.
Usually they will stack about 3 or 4 polarizing filters (possibly more) on top of the lens then dump down the aperature on top of that and open up the shutter.
I have never tried it myself but have seen some really cool results from those that have pulled it off.