Hi, I think the problem is the usage of the word contrast. The intention is to control the relation between the brightness of the room/background which is illuminated by bouncing the main flash. The sub-flash enlightens the desired object in front of the camera. If the grey filter is used at the sub-flash, the background gets brighter. The results in a lower contrast between object and background.
regards Bernd H. > -----Original Message----- > From: Emilio Puga [mailto:[EMAIL PROTECTED]] > Sent: Monday, November 19, 2001 11:55 AM > To: [EMAIL PROTECTED] > Subject: RE: TTL multiflash with METZ > > > Yes it is, but I think that if you put a ND filter on the > front of a TTL > flash the output will be regulated for giving the correct exposure (no > contrast control), that�s the way the TTL goes, the camera read the > exposure, is like if you were trying to underexposure a photo > using a ND > filter on the lens of the camera, autoexposure will compesate it. > Yes contrast control works with the RTF and a external flash, but I > think you�ll need the sincro cable. > All the ways I think the better option is using main flash in ttl and > slave one in AUTO. > Saludos > Emilio > > -----Mensaje original----- > De: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]] > En nombre de Frantisek Vlcek > Enviado el: lunes, 19 de noviembre de 2001 9:17 > Para: Emilio Puga > Asunto: Re: TTL multiflash with METZ > > Sunday, November 18, 2001, 6:07:19 PM, Emilio wrote: > EP> Can someone explain how the hell can you obtain a underexposure > whith > EP> TTL flash meterting with a ND filter on the head of it??? > EP> Doesn�t TTL works cutting light at the moment of exposure?? > EP> Know, then you have more flash output for same EV. > EP> I think only way for doing this is with Contrast control > and two or > more > EP> flashguns, or having ttl exposure compesation on each flash (54 > MZ5), or > EP> shoting with flashes on auto and changing diafragm on the second > flash. > > Emilio, that's what I am asking about :) But of course with ND filters > I mean using TWO flashes in ttl multiflash, one with no ND, the other > with ND filter. The Metz brochure on the ND filters for their flashes > seems to say (If I understand the German correctly) that you can get > sort of "contrast control" effect by using ND filter on one of the > two flashes only (which, in a way, makes sense). But I am not sure of > it. > > Also, contrast control works only with one flash and the RTF, no? > > good light, > Frantisek > - > This message is from the Pentax-Discuss Mail List. To unsubscribe, > go to http://www.pdml.net and follow the directions. Don't forget to > visit the Pentax Users' Gallery at http://pug.komkon.org . > - > This message is from the Pentax-Discuss Mail List. To unsubscribe, > go to http://www.pdml.net and follow the directions. Don't forget to > visit the Pentax Users' Gallery at http://pug.komkon.org . - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
