Archived posting to the Leica Users Group, 2001/05/04
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Since there is no electronic communication between an m-lens and the flash, it is intuitive that you have to tell the flash manually what aperture the camera is set on. In the R8, there are electronic contacts on the lens which do this. If you change the aperture on the m-lens, then you have to enter that information on the flash. Again, see page 50 of the manual. Regards, Tom Weatherly Altadena, CA > -----Original Message----- > From: owner-leica-users@mejac.palo-alto.ca.us > [mailto:owner-leica-users@mejac.palo-alto.ca.us]On Behalf Of John > Collier > Sent: Friday, May 04, 2001 10:35 PM > To: leica-users@mejac.palo-alto.ca.us > Subject: Re: [Leica] SF-20 flash question > > > This has been discussed many times before. YOU ONLY NEED TO ENTER THE > APERTURE ON THE SF-20 FOR THE RANGE TO BE DISPLAYED. The TTL flash works > fine if you do not and I never do with mine. > > There is one quirk with the SF-20 and the M6TTL. It does not warn you of > overexposure only underexposure or correct exposure. If you are > too close or > the lens aperture is wide open such that the minimum amount of > flash is too > much, the flash and the camera will signal a correct exposure. > Annoying but > still better than magnesium powder. > > So if you are not too practised with a flash I would enter the aperture so > you can get an idea of what is possible. Otherwise just use some good old > safe flashing sense. > > John Collier > > > From: "Thomas L. Weatherly" <a000170@attglobal.net> > > > > I have an SF20 flash. The answer to your question is on page 50 of the > > manual. With the R8, everything is automatic in the ttl mode. With the > > M6TTL, however, you must manually transfer the aperture selected on the > > camera to the flash by first pressing the aperture select key > (15) then use > > the up/down key to adjust the aperture. If you change the > apeture on the > > camera, you must reset the value on the flash. > > > > > >> -----Original Message----- > >> Tristan Tom > >> > >> > >> i just got an sf-20 flash unit and am looking forward to doing some > >> ttl flash pictures with my m6 ttl. > >> > >> the instruction manual is slightly confusing-i'm wondering: in ttl > >> mode, do i have to set an f-stop on the flash? or, when i change the > >> aperature on the lens, does the flash automatically adjust to it? > >> >