Use you android phone as Binoculars.
You can use the power of your phone camera to ZOOM and to see the thing more closer.
If you want to have a zoomer tool in you packet that this is the application for you.

Binoculars, field glasses or binocular telescopes are a pair of identical or mirror-symmetrical telescopes mounted side-by-side and aligned to point accurately in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects.
But also your android phone can do this.

This binoculars gives you a three-dimensional image (3D) for nearer objects as composition of the two views.
Also if the viewer's eyes are from slightly different viewpoints the app produce a merged view with an impression of depth.

The binoculars are designed to have different optical parameters. The zooming is dependent form you android phone camera capability. Better phone cameras will
achieve ether results.

Take a closer look to the things with this app.

It is hard to make illusions with this zoomer , but you can try to do that with this app.

Screenshots: