Archived posting to the Leica Users Group, 1999/10/25
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]The M lense does not have any mechanical index to tell the camera or the flash what exposure that the lenses is set. Thus you should be the one who tell the flash. JSJ - ----- Original Message ----- From: Wonhong Cho <woncho@ucdavis.edu> To: Leica User Group <leica-users@mejac.palo-alto.ca.us> Sent: Monday, October 25, 1999 3:00 PM Subject: [Leica] Question about SF20 Flash and M6TTL > Dear Leica Users: > > I, novice of Leica, have M6TTL and a SF20 flash. > To use the flash, I have read the manual and other books several times, but > I can't understand the usage of them. > M6TTL has TTL flash exposure control function, but why do I set the flash > exposure, aperture manually? > When do I adjust the aperture to f16 or f2? > When do I adjust the shutter-speed dial to a slower shutter speed than flash > synch speed? > If I should set the flash exposure, what is the difference between TTL mode > and Manual mode in the flash? > Would you explain easily, in detail? Thank you. > > Regards, Wonhong. cho@cs.ucdavis.edu > > >