As Paul points out high ISO can cause you problems with depth of field
control and is also detrimental to holding acceptable shutter speeds
with fill flash in daylight. On the Canon 5D at least the base ISO is
100 but Canon allows taking it down to 50.
Chuck Norcutt
On 4/20/2013 4:13 PM, Bob Whitmire wrote:
> My D3 base was 200. The base of the D800 is 100. I'm not sure it really
> matters for 99.9999% of uses, but for some reason a lot of photogs have an
> expectation of ISO 100 as a base.
>
>
> On Apr 19, 2013, at 11:34 AM, Chuck Norcutt wrote:
>
>> Me too. I don't understand base ISO moving up from 100 to 200 in the
>> E-M5. Nikon did that for a while but I *think* they backed off to 100
>> again.
>
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