Introduction: IPhone 5, IPhone 5S Slide-On Macro Lens - Great Close-ups on the Cheap!
I've upgraded my DIY iPhone macro lens for the 5 and 5S. It's a bit smaller than one for for the iPhone 4, so it ends up being even cheaper to make than the old. Print out the lens holder at Shapeways: http://shpws.me/q26I
It takes a 12mm glass lens that can be bought from Surplus Shed (http://www.surplusshed.com/) for $4 - part number L4471. That was the cheapest place I could find for glass lenses.
The lens drops into a recess in the holder and is held in place by a tiny bit of superglue or similar. if you get glue on the lens, it can be cleaned off with nail polish remover or acetone. The lens I used is plano-convex (one side is flat). When inserted in the holder, the flat side of the lens faces the phone.
I also should note that you need to remove the iPhone's case, if it has one, to use this.
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