Hi, Greg,
Quote:
Originally Posted by Greg Flynn  Would someone please explain to me how you would take advantage of the rear-curtain sync setting on a digital camera? What is it's application? |
We might want to use a long shutter time plus a flash to get an image with two components: a "motion-stopped" part (from the flash, which is essentially instantaneous) and a "motion blur" part (from the ambient light, over the time the shutter is open) so as to symbolize the motion of the subject (perhaps a racecar, or a skier carrying a torch downhill).
But if we use conventional ("X") flash sync, the flash fires as soon as the shutter is fully open (that is, after the movement of the "first curtain"), and the long shutter open period is after that. The result is that the "trail" streams out in front of the subject, not the usual convention for motion.
If we engage second-curtain sync, the shutter is fired just before the shutter begins to close (as the movement of the "second curtain" begins), that is, at essentially the end of the long exposure.
Now, the "trail" streams out behind the subject, the normal convention for motion.
Linear Mode
