I've read a lot, in fact I prepared a lot to shoot landscape outdoor. One of the thing I wanted to try so much is the 'milky' effect.
Basically, this is how I work it out, longer shutter speed then adjust the ISO and aperture to balance the photo. Of course with a tripod. But since the sky is a bit cloudy, I think I can shoot without any filter.
After a few shot, I realize it's overexposed, I put in a ND8 filter and with f22 and ISO 100, I manage to get 1" of shutter speed. Yet, the 'milky' effect is not obvious. I even attach a CPL on ND8 to further reduce the light getting into the camera sensor (correct me if this method don't work) and somehow I manage to get 1.3" of shutter speed, but it doesn't work well too cause with CPL you kind of see thru into the water, so the wavy is transparent and somehow 'milky' effect is gone.
I sit there thinking for a while, in the end I blame it to my ND8 filter, a 3 stop is not strong enough? Do it need a strong wave for milky effect? Or will it be different if I adjust the exposure compensation (only think of that after reach home)?
In the end, I give up trying for that 'milky' effect today! Help please sifu!