fast heating when i used CAMERA?

[nacionmclen]

Why when i using camera to take a picture. Its really fast heating my xperia z?! On tha back side of camera.. Its normal? my os is already 4.2.2! Its really fast than when i browns..

[Uliwooly]

That's normal, because the phone is so thin and its made of glass you feel the heat more than other phones but this is normal.