The Sigma 10mm F2.8 EX DC HSM Fisheye
A diagonal fisheye lens is an incredibly unique option for pros and enthusiasts who like interesting, more artistic shots. The 10mm F2.8 EX DC HSM Fisheye from Sigma lets you take advantage of acute perspectives that are invisible to the human eye. Many wedding photographers and also underwater photographers like this lens as it allows them to get the maximum field of view possible–up to 180 degrees from edge to edge of the APS-C sized image sensor.