On Wed, Nov 3, 2010 at 10:38 AM, Steven Desjardins <drd1...@gmail.com> wrote: > Why change the iso anyway? > why not just change the Tv?
My guess would be because, out of the three main variables (shutter speed, aperture, ISO), ISO is the one that people will be most willing to compromise on. Changing shutter speed could seriously affect the shot (motion blur vs freezing of action comes to mind first). Aperture is another big artistic choice (affecting depth of field and bokeh). ISO really only affects the noise and dynamic range of a shot, and since it is probably only cheating by 1/2 stop or so probably unnoticable to the photographer. If you are going to cheat you do it in the way least likely to be "caught". Darren Addy Kearney, Nebraska -- Nothing is sure, except Death and Pentaxes. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
