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> This approach pioneered by the guys, who liked to take pictures of star trails in the night sky. Even with a tripod, it was impossible to shot such pictures b
by roywiggins 7y ago
> This approach pioneered by the guys, who liked to take pictures of star trails in the night sky. Even with a tripod, it was impossible to shot such pictures by opening the shutter once for two hours
Yes, but also you can't leave a digital sensor collecting for two hours, the pixels start saturating and the noise builds up- not like film, which can do truly long exposures.
- ryandamm 7y agoFor what it's worth, film also suffers from reciprocity failure (nonlinear response at extended exposure times with low flux). Some things were never easy.
- foldr 7y agoReciprocity failure doesn't stop you doing long exposures. It actually helps, if your goal is to make the exposure as long as possible. See e.g. http://itchyi.squarespace.com/thelatest/2010/7/20/the-longest-photographic-exposures-in-history.html http://itchyi.squarespace.com/thelatest/2010/7/20/the-longes... Digital sensors obey the reciprocity law to a much greater extent than film: https://photo.stackexchange.com/questions/37241/does-reciprocity-failure-schwarzschild-effect-exist-in-digital-photography https://photo.stackexchange.com/questions/37241/does-recipro.... The problems the OP mentions are not related to reciprocity failure.