Not necessarily. I can think of numerous occasions where one might want to open the shutter for a shot and wait for a certain lighting condition to occur. I've done it several times. The one I recall specifically is when I wanted to shoot a Dodge Ram that was driving up a mountain in the dark. Because this was part of a television shoot, I knew that a lightning machine was going to be fired at some point during the run, so I merely set my lens at a small enough spot that would preclude the truck's headlights from providing adequate illumination, opened the shutter, and waited for the lightning machine to fire. You can see it at http://pug.komkon.org/01aug/mtgoat.html I've been thinking about trying something similar in my basement table top studio, using multiple flash fires from the same, manually operated strobe. I'd set the strobe at 1/16th power and fire it into a reflector from different locations around the subject. "J. C. O'Connell" wrote:
> > I like it for its low light sensitivity and because it will alter > > exposure time part way through a long exposure if the lighting > > conditions change. > > > > -Aaron > If the lighting conditions change during the exposure isnt > the photograph going to be screw up anyway??? > JCO > - > This message is from the Pentax-Discuss Mail List. To unsubscribe, > go to http://www.pdml.net and follow the directions. Don't forget to > visit the Pentax Users' Gallery at http://pug.komkon.org . - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
