OK will try to remember as much as I can. First, contrast control was introduced with Z-serie (SF?) cameras which did have the ability (which I miss a lot) to use external flash as well as integrated flash (wireless didn't exist at that time). So it worked already in the TTL era. It still does work however.
With two flashes (More, I dunno) which were as I said the integrated flash and the external one, using contrastcontrol will do the following: * balance the output power of both flash so 1/3rd the light comes from the integrated flash and 2/3rd from the external flash. * lower max sync speed because of the process of syncing those. In fact the major use of it was when you bounce the external flash and usse the integrated one to bust shadows. In my experience it worked pretty well, even with compatible flashes as Metz MZ flashes. I dunno the implications of using this in wireless mode with more than 2 flashes however or if it is still possible at all. Maybe only in wired mode with deported flash. BTW, I checked yesterday and indeed my K10D integrated flash reacts pretty well to the flash exposure compensation set on the camera. Exposure settings did not move but flash power did, and the result was very noticeable between -1 and +1. I think this is all. Feel free to ask for more :) -- Thibault Massart aka Thibouille ---------------------- Photo: K10D,Z1,SuperA,KX,MX, P30t and KR-10x ;) ... Thinkpad: X23+UB,X60+UB Programing: D7 user (trying out D2007) -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
