Zoom mod for Minecraft adds the very useful feature of enabling you to zoom in on objects. Installing Zoom mod is kind of like adding a pair of binoculars to your inventory, allowing you to spot threats or landmarks that are too far away to clearly make out. If you ever used Optifine mod for Minecraft then you will remember that zooming was one of its features.
Zoom mod is one of the first mods created for versions 1.7.4 and it brings a similar magnification feature.
Once you install the mod, activate the zoom feature by pressing the LEFT CONTROL key. To change this default key press ESC> Options> Controls.