I think there is a difficult issue with this telephones camera. I have tried a few telephone cameras in store, Cosmic system E7, Vibe P1, G3; even 8 MP Universe E5 determines a larger number of subtle elements than Vibe K4 Note ( A7010) .
I ponder where PDAF is, since it had hard time centering. It can be a product issue or an equipment one. Low quality lens, perhaps? In any case, I trust it can be settled by means of programming redesigns, in light of the fact that I truly like this telephone.
