We introduced a binocular adapter for, but if you don’t have binoculars, the following Close Focus 7x18mm iPhone 5 may be more suitable for you.
This is a portable and practical monocular that measures 5 x 2.75 x 1 inches, and designed for iPhone 5. As we can see from the image, the 7x18mm monocular features sleek compact design for portability, and include an iPhone 5 case with camera adapter in order that you can easily apply the 7x18mm monocular on your iPhone 5’s rear camera and use it to get detailed close-ups, taking clear photos from further away such as sports events, capturing animals and more. Apart from that, the monocular lens is also compatible with iPhone 4/4S.
The close focus 7x18mm monocular for iPhone 5 is priced at $24.99 USD. If you’re interested, jump to ThinkGeek for more details. Additionally, If you need other options you might like to check the iPhone 5 binocular adapter.