A request: Consider trying the same thing with a wide-angle or ultra-wide as well, just as a comparison.
In the M8 introduction, my class was told that the camera "becomes more center-weighted average" with longer focal lengths, and "becomes more like a spot meter" with shorter focal lengths.
Just curious whether the M9 shares this tendency to any great degree.
People – even people who should know better – automatically think SLR though this is not applicable to any M camera. A M, like any well-regulated English household, has an Upstairs and a Downstairs, and only the most formal connections between them. And metering is done in the Servants' Quarters.
In his Leica M Compendium, Handbook of the Leica M system
(Hove, 1994) Jonathan Eastland, who surely knows better when he stops to think, declares (p. 130) that"The diameter of the measuring field is equal to 2/3 of the short side of the bright-line frame in use. – This is a useful piece of information because in practice it means that the photographer can accurately measure very small areas of the object to be photographed using the preselector lever. – For example, when using wide-angle lenses, the measuring field of the meter appears larger. [ ... ] By flicking the preselector lever to bring up the 90mm bright-line frame, particular areas of the scene can be measured and interpolated."
So the otherwise estimable Mr Eastland thinks that by changing the frames upstairs, he can change the metering angle downstairs, without changing lenses! Good try.
And I do suspect that this kind of thinking lies behind the statement that metering angles are different relative to the picture angle
with wide and long lenses. Mr Eastland I presume cut his teeth on SLR cameras with TTL metering (he mentions Nikon). Today's amateur photographers, and future pros, cut their teeth on cell phones, holding their humonguous DSLR cameras with long zooms in front of them on outstretched arms. I wonder what other strange behaviours this will lead to.
Anyone who launches a DSLR that you can make phone calls from, has a winner.