Flash Sync speed explained
The fun way to test the flash sync speed of your camera.
Set up the camera on a tripod with your studio flash.
Adjust your camera shutter speed one step at a time (1/3 stop normally) to increase exposure. Start at 1/125th sec and take a photo using your timer at each setting and see the results.
What is happening? As the shutter opens and closes it is dragging a 'curtain' across to expose the sensor to the light. If you use a fast shutter speed the curtain interrupts the flash (in this case from the bottom of the lens) and leaves a dark underexposed area behind. The faster the shutter speed the more of the flash light is interrupted.
In this case my camera flash sync speed would be something short of 1/250th sec (at 1/125th sec)
Of course you could always read the instructions (RTFI) but thats not as much fun! This makes it easier to understand and remember.
No comments posted.