Archived posting to the Leica Users Group, 2000/08/24
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]The world is full of grey cards - red coat, green grass, blue sky, fresh earth, all 18% give or tahe a 1/2 stop here and there. Simon Dan Cardish wrote: > There is no need to point a meter at an 18% (or 13%) gray card to get > accurate reading. I (and many photographers) routinely aim my spotmeter at > the palm of my hand and then open up one stop to get a meter reading. > There's no reason why the M6 meter can't do something similar. All that > need to be done is have the meter calibrated properly. > > Hmm....actually, many photographer don't aim my spotmeter at my hand, only > I do that. They use their own hands! And they use their own spotmeters! > > Dan C. > > At 09:24 AM 24-08-00 -0700, Dan Post wrote: > >Dan ( The other, really crazy one!) Post > >----- Original Message ----- > >From: "Dan Honemann" <ddh@home.com> > >To: <leica-users@mejac.palo-alto.ca.us> > >Sent: Wednesday, August 23, 2000 10:59 AM > >Subject: [Leica] white dot and metering > > > > > >> Ok, here's a dumb question (so those of you who have low tolerance for > >dumb > >> questions can skip to the next msg now). The M6 TTL meters off of a white > >> dot on the shutter curtain. Why isn't the dot 18% grey? Does the meter > >> test light reflected off both the white dot and some of the black curtain > >so > >> that the composite represents grey? > >> > >> I'm assuming the meter works by comparing the reflected light through the > >> lens to the light reflected off the white dot. > >> > >> And why do we use 18% grey cards anyway when "scientific studies now > >> indicate that an average scene actually reflects 13% (not 18%) of the > >light > >> that falls on it" (Peter Burian, _National Geographic Photography Field > >> Guide_, p.137)? > >> > >> Curious Dan > >> > >> > > > > > > >