The Rokinon 12mm 2.8 fisheye lens I use is the cheapest lens I own, but also probably the most fun to shoot with. The image quality is good (but not quite great) paired with the Z7. My biggest complaint I suppose is that the front element tends to come loose and then the images are out of focus. If you aren’t pixel peeping, you may not notice the shots aren’t tack sharp. I had this happen on a few different occasions during the week. But again, for a $375 lens purchase I can overlook these shortcomings for what it does offer. Most exciting of all is the ability to get compositions like this one that just don’t work as well with a regular wide-angle lens.