Forum: Pentax SLR Lens Discussion
09-15-2009, 04:14 PM
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Welcome here.
Do you have other HSM/SDM lenses that work with your GX-20? You mentioned all other lenses work, but didn't mention if any other lenses were HSM/SDM.
If so, and they work, then it is a little strange and probably needs a repair guy to have a look at the combo.
If not, then it really may be the camera's contacts/electrical circuitry that need cleaning/servicing.
Let us know how you go.
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