In landscape if you are reading a web page or ebook, you have can zoom through two fingers. But there is a more effective way. You just have to title the phone to front and back for zooming. It is very simple and easy to maange. If you are viewing a image or reading any news and want to see some part instantly then through easy titling the screen it can be zoomed.
Step 1: Enable Control Motions settings from Settings > Controls > Motions.
Step 2 : Enable Zoom under Tilt. Then open any image or web page.