Updated: June 23, 2017 10:14 AM ET | Originally published: December 28, 2015 11:24 AM EST

The iPhone’s camera is plenty powerful, but it does have limitations. Because it has a fixed focal length, it can’t produce images that are truly telephoto or wide-angle, for instance.

Luckily for iPhone photographers, a wide variety of third-party lens attachments are now on the market. They make it possible to get all sorts of unique photos with the iPhone’s camera, expanding shooters’ creative potential.

TIME tested a number of these lens attachments to see which stand out from the pack. Each was tested on an iPhone 6s and the first three on the iPhone 7 Plus as well. Here’s what we found.

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