Problem with Tamron adaptall mount: Pentax SLR Talk Forum: Digital Photography Review

Problem with Tamron adaptall mount

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Forum	Pentax SLR Talk
Subject	Problem with Tamron adaptall mount [SIMILAR]
Posted by	cboudier [PROFILE] [GALLERY]
Date/Time	16:28:11, 12 January 2007 (GMT)


Hello, I own a Tamron SP 180 lens + Pentax KA adaptall 2 mount and a Pentax K100D The mount is (correctly) fixed on the lens, but I have a problem... Here is what happend : I switched the camera to P mode, and tried several shots. The top LCD displayed "Tv" mode (instead of "P"), speed value and nothing for the aperture value. Same in the viewfinder. The back LCD displayed P mode (!) All shots were exposed properly and looked good. In P or Tv mode, the camera change automatically the aperture (I saw this by pressing the INFO button during reviewing the photos) --> it works, but I have not idea of the value of the aperture because it's never displayed. I tried several times to mount / dismount and even cleaned the mount with a special electrical contact liquid... nothing change. The normal behaviour should be that when in P mode, the top LCD displayed P mode and the value of speed and aperture. Where do you think the problem is ? How to solve it ? Thank you for your help -- http://www.photographie.net/expo Album-photos

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