Saturday, March 6, 2010
Filters?
Yep, full of questions, but this is what a blog is useful for. Have figured out what a polarizer filter does, and a graduated density filter (for darkening a portion of the photo, typically the sky). However, what does a Neutral Density (ND) do? Yes, I understand it reduces the total exposure in regard to light, but why? Cannot a person also increase the shutter speed or ISO, or "stop down" the aperture? Possibly a use with fluid motion, where one wishes a long exposure, such as a waterfall or stream, and still retain selective DOF?
Subscribe to:
Post Comments (Atom)
Filters are still something I don't quite understand as well. From what I understand the ND filter is used to allow you to shoot in bright light, and still keep a slow shutter, or wide open aperture. Here is a link to an article that I thought did a good job of explaining more about the ND filter. http://www.ephotozine.com/article/Using-a-Neutral-Density-filter-4871
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteGreat article. It pretty well confirmed what I suspected, but using a ND filter coupled with a slow shutter speed to remove moving objects from a shot was very interesting. Had never thought of that!
ReplyDelete