I don\'t know about the 7d... but on my 5d2 the higher ISOs have a much higher MB per file.
A 100 iso RAW is around 20mb while a 12800 ISO file is around 40MB! That is double the data!!! As the ISO is boosted it makes for shorter bursts/slower shooting speeds as the cache is filled faster.
Nov 05, 2009 at 12:44 PM
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