Filter Kits

New Holga Dial-a-Camera Effects for your iPhone

Filters—the type you hold between fingers for placing in front of a lens—have been in retreat since in-camera digital effects began offering more choices than a diner menu. Still, there is something refreshing about a snap-on dial for an iPhone 4 or 4S that lets you rotate a selection of filters and lenses.

Filters for Lenses

If you ask most consumer-camera owners why they keep a filter on their lens, a majority will most likely reply, “For protection.” Although filters do, in fact, protect the surface of your lens against dust, moisture and the occasional thumb print, the primary function of lens filters is really to improve the image quality of the pictures you take—depending on the filter you’re using and how you use it—in a variety of obvious and not-so-obvious ways.

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