Simply slide a shoe mount flash (you will see a little metal nipple underneath your flash unit) onto the top of this slave trigger and you have a slave flash ready to be used as:
Fill light -- to fill or soften unwanted shadows of the subject, or accent the subject.
Hair light -- to illuminate the hair of the subject for great details to achieve artistic/dramatic effects.
Background light -- to separate the subject from the background, often creating a halo effect around the subject.
Attention digital camera users:
Some digital cameras fire a pre-flash just micro-seconds before the main flash (Here we are not talking about the pre-flash used by some cameras for red-eye deduction). The pre-flash is used to set the white balance* and other camera settings before the picture is taken. This pre-flash will also trigger off our slave units prematurely.
The following digital cameras can be used with this slave trigger because they do not fire a pre-flash**: All Sony(except for Sony 707&717), Kodak, Ricoh, Fuji, Casio and Hewlett-Packard digital cameras and Nikon Coolpix 9xx series digital cameras --- Minolta Dimage 7 Hi, Dimage 7i and Dimage 7 upgraded edition can use our slave triggers because these Minolta cameras allow the user to select between TTL measuring pre-flash and manual setting to enable use of regular slave flashes.
The following digital cameras can NOT be used with this slave trigger as they fire a pre-flash: Canon***, Olympus, Toshiba, Palaroid, Agfa, Minolta Dimage 7, Nikon Coolpix 700 and 800 series, Panasonic PV-SD4090, Pentax E1-200, and the Epson series.
*The white balance --- The camera's ability to correct color and tint when shooting under different lighting conditions including daylight, indoor natural light and fluorescent light,etc.
**Deactivate the red-eye function if your camera uses pre-flash red-eye deduction mode.
*** If you are using a pre-flash digital camera, please check your camera to see if it has a manual setting in Flash Mode. If it has, as is the case of Canon PowerShot S45, Minolta Dimage 7i, etc.,you can set it on and use with this Remote Optical Slave Trigger.
The two photos below are taken with a Sony Cybershot digital camera. The first one with only built-in flash fired*and the second one with a couple of external slave flashes triggered by our slave trigger.
* Digital camera's built-in flash is always underpowered and tends to give poor quality photos on indoor or dim light shot and therefore one or more slave flashes are always a must for serious amateur and pro photographers.
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