On Wed, Nov 10, 2010 at 10:49 AM, Mark Roberts <[email protected]> wrote:
>>OK. Can you expand on that? What is it about lower ISOs that make them >>primarily better to you? > > Longer shutter speeds. Suppose you have two hypothetical cameras: (a) Minimum ISO 80, dynamic range of 12 EV at minimum ISO (b) Minimum ISO 100, dynamic range of 14 EV at minimum ISO Which of these allows a longer exposure of a given scene without clipping the highlights? I don't know the digital ISO standard very well (and, from the looks of the Wikipedia article, it's inherently clear as mud, with several options available to the manufacturers), but it seems quite possible to me that (b) allows the longer exposure by having more headroom. So I think "lower minimum ISO = longer exposure" may be an oversimplification. The K-5's large dynamic range may have a more beneficial effect for your shooting than its low minimum ISO does. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
