New iPad 4 / iPad 3 is blessed with the stunning Retina display that secures 264 ppi pixel density, which is the source not only for sharp and crispy shots and movies taken with its build-in cameras but also annoying hanging of those apps involved into shooting . Even native Camera app may hang during exposure. In rare cases this is hardware issue but more often than not it is caused by drained RAM on iPad mini / iPad 4 / iPad 3 (its predecessor that is iPad 2 may suffer also from this).
To avoid problem with camera hung on your iconic tablet follow the simple sequence before launching any app that involves its build-in cameras:
This sequence will maximize the free memory on Apple tablet and cleans up the junks left in resident memory from poorly written apps.
If your camera on iPad hangs: