andre_menezes Posted October 6, 1999 Share Posted October 6, 1999 Hello! <p> I have had in trouble trying to understand the evolution from TTL to E-TTL. It4s clear for me now to comprehend the E-TTL and the A-TTL flash system but before these how does the built-in TTL flash works in comparision with the other E and A-TTL flash systems? <p> Thanks for all who ever supported me! <p> Andre Menezes Link to comment Share on other sites More sharing options...
jim_strutz Posted October 13, 1999 Share Posted October 13, 1999 With straight TTL there is no preflash of any type. The flash sensor in the camera body simply looks back at the film being exposed and when enough light has reached it it stops the flash. It usually works well. TTL was a vast improvement over the older "auto flash" before it. This was a much bigger technological step than any difference between A-TTL and E-TTL. Link to comment Share on other sites More sharing options...
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