This is a set of 4 lenses that our customers have been purchasing for macro photography with their cell phone cameras. Your challenge is to find the best way to attach them. The shorter the focal length, the higher the magnification you will obtain. Single element lenses work ok for most applications but the triplet lenses are the highest quality. L4471: PCX 11mm dia x 54mm focal length L3822: Triplet 40mm focal length L3275: Triplet 22mm focal length L3761: Triplet 20mm focal length
