There are plenty of cool telescopes and microscopes around that let you see distant or small objects. Thanks to the Carson Universal Optics Adapter HD, you can connect your smartphone to your telescope or microscope to get a better viewing experience. The device has a self-centering clamp with release grips for various types of optics. It is small, portable, and lightweight.
As you can see in the above video, thanks to this adapter, you can zoom in on objects on your smart device while watching objects in the sky, animals in nature, and everything in between. Sets you back under $60 at this time.