Most mobile phones don’t have optical zoom for a couple reasons. First, they take up a lot of space, and second, good optics can be expensive.

If you’re willing to give up one of the inconvieniences (the size), you can get this inexpensive zoom lens from Brando for the inexpensive price of $19USD from Brando in Hong Kong.

At that price, it probably won’t have the greatest optics, but that’s okay, since the iPhone’s camera isn’t even close to “high quality photographic equipment” either.