Archived posting to the Leica Users Group, 2009/10/26

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Subject: [Leica] M9 reporting f/stop in EXIF?
From: hopsternew at gmail.com (Geoff Hopkinson)
Date: Mon, 26 Oct 2009 19:26:28 +1000
References: <949FBA62-554E-4547-AC2E-1799BE2B9323@mac.com> <36172e5a0910260225n65822caft233d19223df7b96c@mail.gmail.com>

Amendment to that. Yes works when lens detection OFF.

2009/10/26 Geoff Hopkinson <hopsternew at gmail.com>

> Yes, both with M9 and M8. And yes, apparently derived from the brightness
> sensor which was C1's method too. Nevertheless accurate to 0.5 ~ 1.5 stop
> here in the sample (100 files) I checked today. Those are from a couple of
> days where I can confidently recall actual aperture used. Don't know on 
> lens
> detection parameter yet. That's a good question! Can someone with a
> camera confirm if any manual lens detection can be made independant of
> selector lever (frame line) position?
>
>
>
> 2009/10/26 Robert Rose <robert.rose at mac.com>
>
> I noticed that in Lightroom 3 Beta, that M9 files (which I downloaded) are
>> reporting an f/stop in EXIF data.  They all seem to be half stops, e.g.,
>> 2.5, 4.5, etc.  I thought I had read that the M8 calculated an estimated
>> f/stop for flash use, using the light measured by the small sensor near 
>> the
>> red dot.  It was judged to be too variable to be reported, however.
>>
>> Has this changed for the M9?  Does it only work when lens detection is on
>> or the lens type is set manually?  For those of you with M9's, how 
>> accurate
>> is it?
>>
>> An interesting bit of data, but I had learned to live without it.
>>
>> Regards,
>> Bob Rose
>> www.robertrose.net
>>
>> _______________________________________________
>> Leica Users Group.
>> See http://leica-users.org/mailman/listinfo/lug for more information
>>
>
>
>
> --
> Cheers
> Geoff
> The new LEICA M9
> Passion for perfect pictures.
> http://www.m.leica-camera.com
>
> http://gallery.leica-users.org/v/gh/
> http://www.pbase.com/hoppyman
>



-- 
Cheers
Geoff
The new LEICA M9
Passion for perfect pictures.
http://www.m.leica-camera.com

http://gallery.leica-users.org/v/gh/
http://www.pbase.com/hoppyman


In reply to: Message from robert.rose at mac.com (Robert Rose) ([Leica] M9 reporting f/stop in EXIF?)
Message from hopsternew at gmail.com (Geoff Hopkinson) ([Leica] M9 reporting f/stop in EXIF?)