Reply To: What ND filter is needed, please?

[cameraclicker]

I don’t do a lot with an ND filter, so I only have one.  It is adjustable.  The advantages are it takes less space in the bag and you can adjust it to a low density value so you can see to focus, then adjust it to a greater density for the photo.  I suspect dedicated density filters actually do a better job, but for playing around the variable one is enough.

A stop is half or twice the light.  Half or double shutter speed, half or double ISO, or adjust aperture.

 

Here is a link to a discussion about ND filters:  http://www.picturecorrect.com/tips/neutral-density-filter-tips/

 

Have to run.  Hope this is enough to get you started.