At CES 2015 Asus has launched its 2 smartphone Asus ZenFone 2 and Asus ZenFone Zoom till 07 Jan. Now Asus came with smartphone with Optical Zoom option which will provide you the best picture quality on zoom too. Its a best smartphone for photographers available in the market after the Samsung Galaxy K Zoom. Asus ZenFone Zoom is providing 13MP rear…