Archived posting to the Leica Users Group, 2002/04/07
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Did you have film in the cameras when you tested the flash TTL? jh > [Original Message] > From: Henry Ting <henryting10@yahoo.com> > To: Leica-users <leica-users@mejac.palo-alto.ca.us> > Date: 4/7/2002 1:19:21 AM > Subject: [Leica] Leica TTL accuracy. > > > About a month ago, I added a Metz 54 MZ-3 to the M6 > with different modules for the M6 and R6.2 TTL. > The initial results were disappointing. I tested it > with close to 18% neutral background and in all > situations with both TTL and the automatic all my > pictures came out underexposed. I made addtional tests > with the flash, but metering it with the flash mode of > the Sekonic L-3088 and sure enough the Metz screen > shown with the distance to F-stop is one-stop under > compared to the Sekonic meter reading. However, using > FULL flash with no TTL or auto mode, the flash output > in combination with the zoom capability shows exactly > 177 GN against the meter with the appropriate > flash-to-subject distance. > > I'm at a lost in trying to determine the source of > this problem. My understanding is the flash output is > determined by the camera in TTL mode, so logically the > under-exposure problem should lie with my camera. > However, in auto-mode, the control is in the flash and > yet the pictures are also under-exposed, so logically > the problem should be with the flash. And yet testing > the flash in FULL manual, the Sekonic reads the output > as "right on". By the way, the under-exposure is > consistent with both my M6-TTL and the R6.2 with Metz > modules SCA 3502 and SCA 351 respectively. > > I ran out of ideas in trying to trouble-shoot this > problem. I could use the Metz 54 MZ-3 with the +1 > compensation to overcome this, but that's a big price > to pay. > > __________________________________________________ > Do You Yahoo!? > Yahoo! Tax Center - online filing with TurboTax > http://taxes.yahoo.com/ > -- > To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html - --- James Harrison - --- Wichita Falls Texas, USA - --- KD5LMX - --- leicajh@earthlink.net - --- http://home.earthlink.net/~leicajh/ - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html