Leica, Noctilux 50mm f/0.95

I am using Lightroom version 4.4 on a Mac OS X 10.7.5.
When performing a search for pictures based on the Aperture size as the criterion, the aperture sizes that are displayed by Lightroom version 4.4 are not correct for the Noctilux 50mm f/0.95 lens.
Does anyone have the same problem? Is there a solution to the issue?

To answer my own question, the M9 uses an exposure reading external to the lens to compare with the light coming through the lens to estimate the aperture-setting of the lens:
http://www.l-camera-forum.com/leica-forum/leica-m9-forum/111917-f-stop-shift.html#post1184 234
"The reported f/stops in the M9 EXIF are a guesstimate based on comparing the scene illumination as read by the little blue dot above the Leica logo with the ttl illumination as read by the internal meter..."
http://www.dpreview.com/forums/thread/2853117#forum-post-36073766
#3: "...there is no communication between the mechanical aperture & the electronics of the camera, so the data is derived & not all that accurate, particularly in low light..."

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    >>
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    >
    Dr Christopher Tribble
    MOBILE     || +44 (0)7917 473522
    EMAIL     || mailto:[email protected]
    WEB     || www.ctribble.co.uk
    >

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