Asus updates the Zenfone with a fancy camera and 4GB RAM

Asus has updated its popular Zenfone with two new models, including one for photography enthusiasts with a 3X optical zoom and controls for setting ISO, white balance and shutter speed.Chairman Jonney Shih unveiled the Zenfone 2 at a press event at International CES on Monday with his usual mix of salesmanship and wannabe Las Vegas entertainer style.Asus has been selling 1.5 million Zenfones per month in the last quarter, according to Shih—not many compared to Apple’s iPhone 6 but not a b