I was shooting long exposures of streaking clouds over the hills before i saw this particular scene. At that time, I felt I could make do get the shot that I want with the filter on so I didn't bother taking it off. Sunsets for locations near the equator or tropics can really be fast and I didn't want to miss the opportunity, so I took the shot even with the ND8 on
Funny, I had the exact same two questions as the previous posters. Thanks for the answers and the link, which helped explain the second question.
This is a Fantastic shot. This is the type of image that I've always wondered how the foreground subject can be properly exposed when the camera is facing directly into the sun. My photos like this always sillouette the foreground subject. I'm guessing the answer is just the graduated ND filter? Any other trickery involved (besides your great camera and lens)?