Best filter for daylight slow shutter shots?

[sammyc85]

I'm wanting to do a few slow shutter shots on water to get the misty effect, but I know the long exposure will cause the picture to be white so was wondering what lens filter is best?

 

[TCR4x4]

10 stops are most common, either a screw in or square slide format

LCW do a good 9 stop screw in, Haida do a 10 stop.

For slide in, lee big stopper and hitech pro stop are the two main contenders.

If you go for a slide in, then you will also need the associated holder and lens adapter. They are much easier to work with though..

Many cameras will struggle to focus with a 10 stop attached, so with screw ins, you need to focus before attaching the filter, but then you run the risk of defocusing the lens when you screw it on.

 

[bobman]

You will need a nd filter but the strength will depend on the strength of the daylight. Usually to get a slow enough shutter speed of say 1-2 seconds for the misty water effect in daylight you will need a 10 stop filter