Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye Lens for Canon EF

The Sigma 4.5mm f/2.8 EX DC HSM Circular Fisheye is a specialist wide-angle lens designed for Canon EF-mount APS-C cameras. It produces a circular fisheye image within the frame, delivering a full 180-degree angle of view across all planes. The f/2.8 maximum aperture supports use in a range of lighting conditions, and the HSM Hyper Sonic Motor provides quiet autofocus performance. The distinctive perspective and extreme distortion characteristic of circular fisheye lenses make it a creative option for photography where an unconventional and immersive field of view is desired.