Suddenly, my Panasonic Lumix DMC-FZ30 Digital Camera stopped focusing (when on auto mode) on the center of the object. Now, it's somehow focusing behind the main subject and the main subject is blurry, while the further distance is clear. I tried factory reset and it did not help. Strangely, the video mode still shoots in focus videos. Any ideas?

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just format the card in the computer, find someone with a card reader and format it there, after format on the camera.... and hoppefully the problem will be solved

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you might have accidently slowed your shutter speed in the settings

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You can download required user manual from HERE or click Panasonic Support and type model number in box to get manual.

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Hello,
I understand that you've tried all the obvious tricks like resetting to factory settings etc.
Sounds like a CCD/shutter failure I'm afraid. FZ30 are not known for failing CCDs, but I've seen shutters fail on various lumix-es, so in this case I would suggest replacing the shutter. To be precise, replacing the shutter itself is a massive pain in the **** on this camera. It's much easier to replace the whole lens-it contains the shutter. You'll need to get a donor camera (ebay ;) and do the transplant. Swapping the lens is relatively easy if you're ok with midly fiddly things. Oh, and make sure you take notes which screws go where when dismantling the camera - and be careful with ribbon cables for the LCD.
Good luck,
Raf

SOURCE: My Panasonic Lumix® DMC-ZS3 will not focus

Try checking your settings or menu for a vibration sensor or changing the focus. You might also be using the wrong setting, like indoor, when you're at the beach. You can also change the quality of the pictures and if you are taking still photography or movement.