The optical quality of this "multi-purpose" is truly remarkable. Whether wide angle, fisheye or macro, you can really achieve great images ... for this type of device. However, there are a number of limitations that you must know before you buy: - The Olloclip can be mounted on an iPhone "naked" (out shell out case), even a simple film screen protector can be awkward to clip correctly. - The system covers the "flash nickname" the phone. But, hey, who uses it? ... - The photographs often have edges a bit dark because of adjustment "very concerning" with the opening of the iPhone. Nothing too boring, but sometimes crop post for a flawless shot. - These objectives are fragile. Take care not to drop them, especially as they tend to loosen themselves. - Optics "macro" demands that ranks very close (a few millimeters sometimes) the photographed subject. A small tripod will be welcome to prevent all drowning in a big blur to a depth of field - inevitably - hyper reduced. Otherwise, the chromatic aberrations are reasonable, optical distortions tolerable, and very correct brightness. A small purse microfiber is being provided to clean the lenses. Conclusion: despite some flaws statements, that stuff is a "must have" for all photo enthusiasts on iPhone.