By some cosmic coincidence my 20/1.7 (ordered three weeks ago, but only delivered now thanks to the joy of the USPS) and my Pinwide (ordered a few days ago), arrived at the exact same moment today. A greater contrast could not be imagined, but I've been having a lot of fun with both. One's so fast I don't need flash without any lights on indoors. The other takes a 1 second exposure at ISO 100 in full sunlight. One's built of heavy glass elements, the other of a piece of foil that must weigh but a fraction of a gram. One produces tack-sharp images, the other diffraction-infused blur. One is even from corner to corner, the other vignettes sharply. One is cheap, the other nearly ten times as much. And yet neither one has spent more time on my camera. Both fun in their own way.