I recently received a set of ND filters that included 2-stop, 3-stop, and 4-stop filters. I have been dying to give these a try. One subject I wanted to use these filters on is waterfalls. I have seen so many images from others of those beautiful silky waterfalls. I wanted some of my own. Unfortunately, I don’t live close to big waterfalls. So I went to my local park and found this guy. He is more like a waterdropoff than a waterfall, but he would have to do.
Of course going to the park at 3:00 in the afternoon wasn’t ideal because it was about as bright as could be. So I drop my camera down to f/22 and ISO200. I put on the 2-stop filter. I take a test shot and see that even with the filter I was still yielding a shutter speed of about 1/8th of a second. Well that wasn’t even gonna come close to getting that silky look. So I stacked the other two filters on and with all 3 filters I was able to get down to a 1.5 second exposure.
I wasn’t too thrilled with the 1.5 second exposure image. So I then decided to bracket 3 shots for an HDR. After processing those through Photomatix, the image above is the result
Maybe some of you out there can help. When using multiple ND filters, is there a proper order you should stack them?