I was going to get a B+W ND Filter which is supposedly 6 f stops and the one for flowing water and around £60 but discovered one that is 10 stops and £80 but is supposedly for bright light like furnaces and things. I found that this photo was taken using the 10 stop filter (from comments well down the list somewhere) http://www.flickr.com/photos/trevwed/37 ... 092127222/
and I'd quite like to have that as well.
So what I'm wondering is, if I buy the £80 one can it do the job of the £60 too - by altering camera settings perhaps? or would I have to buy both to do the two jobs?
I have cheap filters which seem to be hopeless