As what can infer from the mod’s name, Zoom mod by Tonius allow players to add a single tool for zooming. That tool’s name is Binoculars. It is extremely a useful mod. If you want to look at something from a long distance such as a land, a mountain or even sea; Zoom mod is designed for you to get close enough to see. Admittedly, the mod surely supports you much in the game.
See also :
Using Binoculars (1st person)
Using Binoculars (3rd person)
Binoculars can be crafted like so:
To use the Binoculars, simply hold right-click while holding the tool in your hand. Binoculars can also be used from anywhere in your inventory by using a keybind (Z by default).
While using Binoculars, you can adjust the zoom level with the mouse wheel.
If Render Player API (1.7.10 version only) is installed, a small visual effect is enabled: players that are using Binoculars can actually be seen holding them up to their eyes.
This does not work if Binoculars are used with the keybind. It might also look glitchy when wearing armor with unique models from other mods.