I presume you have one of the dedicated Pentax flash units, the AF540FGZ or AF360FGZ ... ?
The camera fires a pre-flash prior to the mirror lifting to measure and integrate flash intensity with ambient light intensity. This is how the Pentax P-TTL flash metering system works. Godfrey On Mar 10, 2007, at 4:03 PM, Jack Davis wrote: > Nother subject..kinda. With both the on board and off camera flash, I > get a flash immediately upon setting off the shutter and another just > prior to the shutter closing. > In both cases, is the first flash ONLY an exposure 'communicator' for > exclusive use by the trailing curtain flash? -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
