HJMinard, you are right, ND filters for that water/water fall silky effect. I made a mistake in thought.
I guess my question is, which to get first? I know the answer is, what do you shoot? or how often will you need each?
So can someone basicallu break down each one's use?
Job, you lost me . What do you mean Singh Ray's ND grads are big enough to double as a straight ND? YOu mean cover the whole front element with the top half of the ND Grad? So it appears or is unofficially a regular ND?
First, yes they're big enough on some lenses, although you may need something other than the "Cokin P" size on the 10-22 come to think of it, or at least to cut down the Cokin holder to prevent vignetting.
Your question was about landscapes, which I took to mean land/water and sky. ND grads would be good here, while a regular ND filter would just force a larger aperture/slower shutter speed. If you want running water scenics, then a general ND would be good (but try to keep the sky out - that'll blow out even with a ND in place). The ND grads are intended to help you preserve detail in the sky while allowing you to expose for the land. Put one in place, stop down to shooting aperture and slide it up/down until you're darkening the sky but not the land.
