Sony HVL-LE1 - Manual (Page 13)

2. With Rear Sync Flash 1. Without Rear Sync Flash
On-Camera Flash Basics
What is it?
Triggers flash at end of exposure
instead of beginning to allow for
ambient light to be captured.
How to use it?
• Rear Sync Flash is found within
the flash options of your camera
menu and can be used with a
built in or external flash
• You will need to use a longer
shutter speed so keep the
camera still by using a tripod or
other stabilizing device
• Consider using a remote shutter
release to cut back on-camera
movement
Where to use it?
Use it when you want to capture
the trail of an object in motion or
flowing light more naturally.
rear sync
flash
Adding motion to your image presents an added level of creativity. Being
able to capture some blur followed by freezing the action allows you to tell a
story about the direction your subject was moving in. To do this; activate the
Rear Sync function in your flash settings and select a slow shutter speed.
In these photographs, we wanted to capture a runner in motion. The photo 1
shows the correct use of Rear Sync. Photo 2 shows what happens when the
standard flash settings are used such as Auto, Fill-Flash or Slow Sync. As you
can see, it looks like the runner is running backwards. Why? A flash set to a
standard setting will fire right after the shutter has been released freezing
the action at the beginning of the motion and capturing the light trail
during the long exposure. This will create an interesting effect that almost
looks like reversed motion.
Manual Mode. Flash set to Fill Flash. 2.5 seconds
F5.6 250 ISO. Because the flash fires first, the remaining
exposure time captures an unnatural trail of light. With Rear Sync, the flash does not fire when the shutter
has been released. The flash fires as the shutter closes
at the end of the exposure. This will create a blur of motion
during the exposure and then capture the subject at the
very end creating a more natural trailing light.
F5.6, 2 1/2 SEC, ISO 250
F5.6, 2 1/2 SEC, ISO 250
Total exposure: 2.5 SEC Total exposure: 2.5 SEC
Flash Flash
Shutterblade position over time Shutterblade position over time
Blurred motion exposed Blurred motion exposed
Split-second Breakdown Split-second Breakdown
24 25