On 30 December 2010 22:56, Eric Weir <[email protected]> wrote: > > On Dec 30, 2010, at 4:29 PM, Charles Robinson wrote: > >> "Stopped down" metering means that when you twist the f-stop ring, the lens >> stops down RIGHT NOW. The camera makes its exposure decisions at all times >> based on the actual amount of light coming through the lens. Small >> aperture=dark viewfinder=trickier focus. Especially in dim-light conditions. > > Followup to initial response: So is "stopped down" "shutter priority"?
No, the two concepts are not linked. Your DS does have "Green button" you just don't know it! Probably because it's neither green nor a button. It's the on-off switch; it has a third position marked by an aperture style symbol. If I recall correctly that's how you use older lenses on a DS. It stops the aperture down (hence stop-down) to do the metering and sets the shutter speed accordingly - again if I remember correctly. Someone please correct me if I'm wrong. The advantage? There isn't one, other than it lets you use non-A lenses on your camera. -- Eric -- 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.
