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 ( so the pre-flash function is off ) 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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