Don,
The flash on the microscope may have too high a voltage for the ist D.
Once it flashes it may be locking up the camera. Try measuring the
voltage or disconnecting the flash flash after each exposure. You may
not want to keep doing this too often in case it permanently damages the
camera.
A solution to this could be using a slave unit on the microscope and
triggering it with the Vivitar flash.
Leon
http://www.bluering.org.au
http://www.bluering.org.au/leon
Don Williams wrote:
Hi all,
I'm still waiting for the replacement camera and am using the one with
the faulty internal flash. It works with an external flash Vivitar 730
AFPK perfectly ... but.
On the microscope, which has a simple flash device with no
synchronization, or TTL, or anything at all automatic ... the flash will
flash once and then not again. Its not a question of charge the flash is
made to strobe and will go on flashing with a film camera until the cows
come home at 1/2 second intervals.
What am I doing wrong? I haven't spent much time learning -- I've been
using the camera and it works fine with ordinary lighting on the scopes.
In green, M, or any other setting I might like to use. All I want is for
the flash to flash each time the shutter is opened. The exposure is
controlled by other means and the camera is not expected to think about
this.
Don
