This article originally appeared on the blog fiberstrobe, and is used with permission.
On a sunny day and I went to the woods to hunt some mushrooms, lit with warm afternoon lights. I took my Sigma 15mm 1:2.8 EX fisheye lens on the NEX-5 with me. The twin-flash adapter with soft box served as additional light source.
The Sony Fisheye Adapter on the 16mm lens is quite acceptable but far from perfect. Optically the Sigma is far better lens, but it’s designed for full-frame cameras, so it’s not that wide on the APS-C NEX-5.