Sigma 4.5mm HSM fisheye f/2.8 circular (Nikon Mount) Lens: Sigma 4.5mm HSM fisheye f/2.8 circular (Nikon Mount) Lens is a lightweight and portable lens which is designed exclusively for close up and macro photography. The fisheye lens is light in weight and offers reliable and effective operation. The spherical fisheye design facilitates the full 180° view in all directions, in a circular image. The lens is also efficient for astrophotography and aurora photography. The sigma fisheye lens featured super low dispersion glass that provides effective compensation of colour aberration and deliver true colour sharp images throughout the frame.
Additionally, Super Multi Layer (SML) coating reduces ghost and flare formation and deliver high quality detailed maximum bright images. Multi-coated lenses of the sigma lens reduces surface reflections, lens flare and ghosting to produce images with higher contrast and colour fidelity. The six bladed diaphragm incorporated in the lens creates an attractive blur in the out of focus areas. The lens features minimum focusing distance of 13.5 cm that makes it ideal for macro and short range photography. The high quality hyper sonic motor (HSM) incorporated that provides smooth, quiet, ultra fast and accurate auto focus which is especially ideal when shooting video. The lens is equipped with a gelatin filter holder at the rear that allows the use of gelatin filters. The lens is supplied with front & rear lens caps and carrying case for safe storage and worry free transportation.