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01-12-2011, 06:28 AM   #1
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Best ISO for long exposures...

For long exposures on a tripod: 100, 200, or something higher?


01-12-2011, 06:55 AM   #2
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Location: Fife, Scotland
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You always want the lowest ISO you can get a fast enough shutter speed with, and since you are doing long exposures 100 is the business.
01-12-2011, 07:01 AM   #3
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i actually shoot at 125, as apparently there is no benefit to 100 vs 125

but the general answer is as low as you can go (though with film reciprocity becomes and issue at some point, and longer exposures (over 30 seconds) on models after the k10 can be problematic and need more post . the digital equivalent of reciprocity failure i guess)

iso 125 10 seconds f8.0 k7 SMC M 28 f3.5


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