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[quote][i]Originally posted by Adam[/i] Since the ND 400 lets in about 1/500th of the normal range of light, it finds another interesting uses in regular color shooting mode. It makes moving objects speed up by 500 times. Any image you would normally shoot at 1/500 sec will now need 1 sec to expose. And if that object moves, it becomes a blur, a ghost of its former self. Longer exposures can almost entirely erase anything that moves. [img]http://www.digitalsecrets.net/Sony/SonyPix/ND400Escalator.jpg[/img] See the people on the escalator? I did. Where did the steps go? Stacking the ND 400 with other ND filters increases the time, proportionally. A common, low-cost ND8 on top of the ND 400 now makes the example above require 8 seconds. Close the f-stop down and you might need dozens, scores or hundreds of seconds to capture an image. Shoot a stream and it becomes a pastoral blur of water. Shoot traffic and it becomes a streak of reflected highlights with no cars visible. Shoot a rush hour crowd and it becomes an image of ghosts vaporously whisking over the background. [img]http://www.digitalsecrets.net/Sony/SonyPix/ND400Plaza.jpg[/img] Dozens of happy shoppers traverse the busy plaza. I saw them with my own eyes. But only one lonely reader sits under the umbrella in the shot. Wait a minute, I think I see someone else... Stack two and the exposure factor goes up to 250,000 times normal. A 1/125th sec exposure now becomes 2,000 seconds, and that's over half an hour. Clouds become blurred, animal cages show only dozing creatures, theme parks become sunlit wastelands and shadows take on an airbrushed quality. There is a lot to play with inside this single filter. [Edited on 10-03-2005 by Adam] [/quote]
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