My Tab2 7" will not read QR/Bar codes using the main camera, which makes it useless. Focus is poor, even on normal images when zoomed in and not pixelated, and are not anywhere near what should be available with 3.2MPixel cameras. The Tab 2 10.1 performs well when set to 3.2MPixels, so I would expect the same results from the 7". The resolution of the image is poorer than one taken with the front facing camera!!! This has been back to Samsung UK twice and they changed the camera module but with no better results. This is a design fault that Samsung will not acknowledge as other similar cameras perform well. I am pushing for a refund based on the device not being fit for purpose under UK consumer rights. What have others experienced with this device?