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Do you hear the lens focus mechanism moving? You said that it tries to focus?
Ok, sorry for the delay. See the two buttons each side of the viewfinder - the ones with the green dots? Power up the camera and then press them both in together for 5 seconds.
Then try to take a photo and let me know.Steve
Is the switch on the lens set to Auto?Do you have another lens you can try?
Ok, if you manually focus, does the camera take a photo?