Hi guys, I'm having a bit of trouble understanding the benefits of a grey grad filter compared to a neutral density filter. I understand how they work, basically, and how they differ build-wise, but why would I go for a grad filter instead of an NDF? I own a NDF and use it primarily for those water shots where I want a smooth surface or on the beach where the flowing water turns into mist around the pebbles. My NDF is very strong and allows me up to 20-30 seconds of capture time even during the day with full sunlight. Now, why would I need or prefer a grad filter in the same situation? I'm not a pro photographer, just an enthusiast and I wonder if the investment into an additional set of grad filters is worth it. Would love your input.