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ISO 50 - Reduced DR on original DP's

Started Aug 18, 2015 | Discussions thread
(unknown member) Senior Member • Posts: 1,857
Re: ISO 50 - Reduced DR on original DP's
1

SRT201 wrote:

I noticed that Sigma pointed out the reduced dynamic range of ISO 50 when it was introduced in the DP1s. I gather base ISO is actually 100. Has anybody noticed just how much DR is lost. I originally figured ISO 50 would be the obvious choice for landscapes but if much DR is lost then ISO 100 would be the one to stick with.

Since the DP1s is ISO-less, the DR isn't actually reduced. ISO 50 is similar to a ISO 100 +1.0 (exposure compensation) shot. So you get cleaner shadows but lose 1 stop highlight recovery.

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