Archived posting to the Leica Users Group, 2011/03/12

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Subject: [Leica] R9 users, is there no exposure lock when using matrix metering, only on spot and average?
From: benedenia at gmail.com (Marty Deveney)
Date: Sun, 13 Mar 2011 15:08:42 +1030
References: <1850661236.2380311299979935981.JavaMail.root@dsmdc-mail-mbs12> <1887403684.2380431299979988983.JavaMail.root@dsmdc-mail-mbs12> <20110312211733.2894653a@linux-xljf.site>

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
>> >
>> > _______________________________________________
>> > Leica Users Group.
>> > See http://leica-users.org/mailman/listinfo/lug for more information
>> >
>> > _______________________________________________
>> > Leica Users Group.
>> > See http://leica-users.org/mailman/listinfo/lug for more information
>> >
>>
>> _______________________________________________
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>>
>> _______________________________________________
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>
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Replies: Reply from benedenia at gmail.com (Marty Deveney) ([Leica] R9 users, is there no exposure lock when using matrix metering, only on spot and average?)
In reply to: Message from grduprey at mchsi.com (grduprey at mchsi.com) ([Leica] R9 users, is there no exposure lock when using matrix metering, only on spot and average?)
Message from photo.forrest at earthlink.net (Philip Forrest) ([Leica] R9 users, is there no exposure lock when using matrix metering, only on spot and average?)