PixController Slave Flash
Copyright © February 2005,
PixController Inc., All rights reserved.
About Slave Flash
How Slave Flash Works
cameras today usually have an inadequate built in flash and lack any
facility to use an external flash. Standard slave flash units will
not work with most digital cameras because these cameras use a very
rapid series of pre-flashes (we're not talking about red-eye
reduction). The pre-flashes are used to set the white balance of the
camera's CCD chip - not the exposure. A typical slave unit will fire
on the first pre-flash it senses while the digital camera captures
the image on the last flash. Thus the extra light from the slave
does not show up in the digital camera photo.
Our slave flash units are specially
designed to fire on the correct flash sensed by our Exclusive
Learning Mode Feature! This feature will
allow any camera on the market to be used with our slave flash
controller. When using our learning mode
feature simply point your camera towards the Photo Flash Sensor,
shutter a photo with flash, and our board will count the pre-flashes
your camera has, store the number in an on-board memory, and fire
the remote flash on the last pre-flash from your camera.
Our slave flash controller uses a Photo Flash
detector to detect the flash from your camera, and no electrical
connection to the camera is required.
The above example
shows the before and after photos taken using an Olympus D-395,
which has a very poor built in flash unit. The after photo
shows the result of using our slave flash controller, which will
fire on the last pre-flash to produce this brilliant and bright
Our slave flash controller is unique from other slave flash
controllers such as the Wein Peanut Slave Flash
controller in that our controller uses a Day/Night sensor to
power down the attached flash unit during day light hours, thus
saving battery life on the flash unit more than two times! Don't be
fooled by other offering a "Stop gap solution" to
this problem either. It will be expensive and will not match
anywhere close to the performance of the PixContorller Slave Flash Controller!
With our Slave Flash controller you have the ability to control the
refresh rate of the attached flash unit. This also is an exclusive
feature of our controller. With this feature you can match the specs
of the attached flash unit to keep the flash unit fully charged and
ready to fire at any instant. This feature will allow you to connect
any flash unit!
Our Flash Photo sensor is sensitive enough to pick up on IR light
produced from a digital camera with an IR filter over the flash,
which produces the IR light. Using a remote slave flash unit with an
IR filter you will be able to brighten up your typically dark IR
digital photos with adding more IR light to your system!
Photos Using Slave Flash
DSC-P32 Example - Before and after photos using the
PixController Micro and Mini, ProMaster FM600, and Vivitar 2000
D-395 Example - Before and after photos using the PixController
Micro and Mini, ProMaster FM600, and Vivitar 2000 flash units.
Slave Flash Test Photo - Photos by Don Letho.