I have something like this, bought years ago… probably here. It works… alright (no idea if it does with the newer multi-lens phones). I suspect it would be best for young kids/teens and/or someone just getting into the idea of photography.
@werehatrack I could see it still being useful in some cases if it actually works. My phone has a dedicated macro lens, but the sensor behind it is so low res that that I almost always get better results from using the regular lens and not standing as close.
@troy@kelaiem@craigthom Touché, they are “glass.” But probably not the kind of glass you might find, say, in any (D)SLR camera. Kinda like the difference between glass and diamonds. I think the digital imaging artist in me dreads the look of the resulting phone pix in Photoshop. But <plugbell> I can fix pretty much any image, with alchemy!
@MrNews Possibly (even probably) better than the glass in many of the aftermarket lenses of years not that far in the past. Anybody else remember the late-60s Vivitar crap? Not quite decent sharpness, only mediocre contrast when shooting B&W, and don’t even think about color. Many of the old single-element 400mm fully-manual telephoto lenses were worse.