Originally posted by danielchtong In the world of dslr, if a flash cannot be controlled from the camera, it should not be called auto. Your camera (OP k200D) cannot tell the flash about its intended aperture.
It can , in a very limited degree, work as a standalone flash - I show that above. Can you elaborate to what extent it is 'auto'?
What does the sensor do? Detect the subject distance and control the flash power?
Daniel
Daniel, auto does not equal TTL. The 280T will set the flash sync speed in the camera, and react to the signal to flash. The original auto flashes all worked the same way the flash works on the 280T when you select one of the two auto modes: they use a sensor on the front of the flash to determine when to cut off the flash.
In the flash family, "auto" means that the flash will compensate for distance/subject brightness. You do not have to manually use guide numbers to determine the aperture to use. You do not have to manually set the camera to the synch speed.
When the description does not include the letters TTL, then the flash uses its own sensor to control the output of the flash.
I hope this clears up the confusion.