Went for a hike at Grimes Glenn Park here in Upstate NY and found some really nice rushing water to practice long exposures on. I used a 10 stop Neutral Density filter and a Sigma 10-20mm on a Nikon D7100 with a tripod and remote. I got some purple bars across some of the photos...I don't know what causes that yet? Any ideas, pointers, etc are welcome!
-Zak
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