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Why do my photos appear more in focus when I use a long exposure? [duplicate]
Why does an unfocused lens still give a focused view with a longer exposure? For example, I took an out-of-focus photo with a ¹⁄₁₀th second exposure (at f/7.1), but when I change to 10 seconds (at f/...
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How can I set an exposure time over 30 seconds with a DSLR?
Most DSLRs have an exposure time limit of 30 seconds.
Now I'm asking myself how is it possible to create images about over 1 hour or longer, like these two:
http://www.flickr.com/photos/froge/...
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