[Leica] R9 users, is there no exposure lock when using matrix metering, only on spot and average?

[gpinkcp at msn.com (Gary Pinkerton)]

Yeah, that's what I do with my R8s; I just couldn't come up with a scenario 
that a 'matrix' lock would be beneficial.

> Date: Sat, 12 Mar 2011 23:51:10 -0600
> From: grduprey at mchsi.com
> To: lug at leica-users.org
> Subject: Re: [Leica] R9 users, is there no exposure lock when using matrix 
> metering, only on spot and average?
> 
> I don't, as in Multi/Matrix it would defeat the purpose of that mode.  If 
> I use AE Lock, I use it in Spot Mode, the only mode that makes any sense 
> to use AE Lock.
> 
> Cheers,
> Gene
> .
> ----- Original Message -----
> From: "Gary Pinkerton" <gpinkcp at msn.com>
> To: lug at leica-users.org
> Sent: Saturday, March 12, 2011 9:49:44 PM GMT -06:00 US/Canada Central
> Subject: Re: [Leica] R9 users, is there no exposure lock when using matrix 
> metering, only on spot and average?
> 
> Y'all have peaked my interest. I'm curious what type lighting situation 
> would you use a lock for matrix (or multi pattern as Leica calls theirs)
> Thanks
> Gary
> 
> > Date: Sun, 13 Mar 2011 15:09:40 +1030
> > From: benedenia at gmail.com
> > To: lug at leica-users.org
> > Subject: Re: [Leica] R9 users, is there no exposure lock when using 
> > matrix metering, only on spot and average?
> > 
> > And as an aside - exposure lock is plenty useful once you have a feel
> > for how the meter works.
> > 
> > Marty
> > 
> > On Sun, Mar 13, 2011 at 3:08 PM, Marty Deveney <benedenia at gmail.com> 
> > wrote:
> > > Not sure about the mode change, but it definitely locks.
> > >
> > > Marty
> > >
> > > On Sun, Mar 13, 2011 at 12:47 PM, Philip Forrest
> > > <photo.forrest at earthlink.net> wrote:
> > >> I think that exposure lock switches matrix to center-weighted at the
> > >> time of making the calculation. That is, if the camera allows the two
> > >> to be set at the same time the program would have to shift out of
> > >> matrix or else there would be too many images that would be just
> > >> unusable due to things like bright/dark areas that the matrix too
> > >> account for but then were not in the final exposure. My F4 did this, 
> > >> if
> > >> I recall correctly.
> > >>
> > >> Phil Forrest
> > >>
> > >>
> > >>
> > >> On Sat, 12 Mar 2011 19:33:09 -0600 (CST)
> > >> grduprey at mchsi.com wrote:
> > >>
> > >>> Marty,
> > >>>
> > >>> Are you sure it works? Matrix metering by definition is a program
> > >>> that takes all of the light values seen in several regions of the
> > >>> frame and runs them through a complex program to come up with a
> > >>> exposure value for proper exposure.  Exposure lock would be useless
> > >>> in this mode.  My wife's D200 has matrix and exposure lock does not
> > >>> work in this mode. Same with my R8.
> > >>>
> > >>> Cheers,
> > >>> Gene
> > >>>
> > >>> ----- Original Message -----
> > >>> From: "Marty Deveney" <benedenia at gmail.com>
> > >>> To: "Leica Users Group" <lug at leica-users.org>
> > >>> Sent: Saturday, March 12, 2011 6:09:25 PM GMT -06:00 US/Canada 
> > >>> Central
> > >>> Subject: Re: [Leica] R9 users, is there no exposure lock when using
> > >>> matrix metering, only on spot and average?
> > >>>
> > >>> Exposure lock works in matrix mode on my Nikon F90x, F100, F4 and F5
> > >>> cameras.  I just tried it.
> > >>>
> > >>> Leica must think that this is the way you _should_ use matrix
> > >>> metering.
> > >>>
> > >>> Marty
> > >>>
> > >>> On Sun, Mar 13, 2011 at 7:23 AM,  <grduprey at mchsi.com> wrote:
> > >>> > Vick,
> > >>> >
> > >>> > Matrix metering is a computer averaging program using a whole slew
> > >>> > of factors.  Because of this there is no exposure lock, as you do
> > >>> > not have a single point to lock onto.  By definition the computer
> > >>> > program makes the exposure from an average of all levels in the 5
> > >>> > zones used by the camera.  You can lock on to a single value only
> > >>> > in spot mode.  This is the same even if you use a Nikon, Canon,
> > >>> > Sony etc.  The R9 manual explains this quite clearly.
> > >>> >
> > >>> > Cheers,
> > >>> > Gene
> > >>> >
> > >>> > ----- Original Message -----
> > >>> > From: "Vick Ko" <vick.ko at sympatico.ca>
> > >>> > To: "Leica Users Group" <lug at leica-users.org>
> > >>> > Sent: Saturday, March 12, 2011 2:27:45 PM GMT -06:00 US/Canada
> > >>> > Central Subject: [Leica] R9 users, is there no exposure lock when
> > >>> > using matrix metering, only on spot and average?
> > >>> >
> > >>> > Hey, R9 users, is there no exposure lock when using matrix 
> > >>> > metering,
> > >>> > only on spot and average?
> > >>> >
> > >>> > Mind checking on your camera for me?
> > >>> >
> > >>> > On mine, only the spot and average metering work with the exposure
> > >>> > lock, i.e. locks the exposure when I push to the 2nd pressure 
> > >>> > point.
> > >>> >
> > >>> >
> > >>> > Vick
> > >>> >
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