4.5mm F2.8 EX DC Circular Fisheye HSM Lens (Sony/Minolta Fit)

Product Description

This autofocus circular fisheye lens is designed exclusively for digital SLR cameras with an APS-C size image sensor. It produces circular image with digital SLR cameras. The minimum focusing distance of 13.5cm/5.3inch & maximum magnification of 1:6 make it particularly useful for close-up photography. SLD (Special Low Dispersion) glass, Super Multi-Layer Coating & the inner focusing system creates high image quality. The HSM (Hyper Sonic Motor) ensures fast & quiet autofocusing & allows full-time manual focus override. The first circular fisheye lens exclusively for use with APS-C size digital SLR cameras This lens is the first circular fisheye lens designed for APS-C size digital SLR cameras. It produces circular image with a diameter of 12.3mm & angle of view of 180 degree in all directions, making it ideal for capturing 360 degree panoramas. Equisolid angle projection system Due to the quantifiable angle/area relationship it produces, this lens can be used for scientific applications such as solid angle measurements of cloud distribution over the sky, or vegetation distribution of the rain forest canopy. The close focusing capability allows close-up photography The minimum focusing distance of 13.5cm/5.3inch & maximum magnification of 1:6 make it particularly useful for close-up photography. F2.8 large aperture It is an ideal lens for Astrophotography & Aurora photography. The large depth of field enables photographers to emphasize the subject. High level optical performance SLD (Super Low Dispersion) glass provides effective compensation of color aberration. Sigma's Super Multi-Layer Coating minimizes flare & ghosting. It is equipped with inner focusing system that creates high definition & excellent image quality over the whole frame.  HSM (Hyper Sonic Motor) The HSM ensures fast & quiet autofocusing & allows full-time manual focus override by rotation of the focus ring. *AF will not function if the Pentax camera bodies do not support HSM. Convenience for photographers This lens is equipped with a gelatin filter holder at the rear, allowing the use of gelatin filters. The front cap adapter for attachment of the 72mm front cap is included.