Forum: Pentax SLR Lens Discussion
07-09-2016, 12:31 PM
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That sounds like possibly a manufacturing problem with your particular copy of the lens. Do you have another Pentax body on which you can test the lens?
When the aperture ring is set to the red 'A' it means you are allowing the camera body to control the aperture, when it is set to something other than 'A' you are controlling the aperture from the lens, and the LCD will read "F--". To use the aperture ring as your method of control you will need to set the last option in the custom menu (before Reset) "Using Aperture Ring" to "2. Enable", (or on some Pentax cameras it's "Allow" I think)
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