Image quality assured as SLD (Special Low Dispersion) glass is used for reduction of colour aberrations and Super Multi-Layer Coatings are used to reduce ghosting and flare.
Sigma 4.5mm f/2.8 EX DC Circular Fisheye Lens for Canon EOS DSLRs (p/n 486954) . The Sigma 4.5mm EX DC lens is the first circular fisheye lens designed specifically for APS-C format digital SLR cameras. It produces a perfectly circular image of 12.3mm diameter and a 180 degree field of view in all directions. Its image is unlike any other type of lens and is useful for both special effects and scientific purposes. It also has a large f/2.8 maximum aperture making it suitable for use in low light.
Lens Type | Fisheye, Ultra Wide |
Max Format Size | APS-C |
Angle of View | 180 degree |
Focal Length | 4.5mm |
Lens Mount | Canon EF |
Maximum Aperture | f/2.8 |
Minimum Aperture | F22 |
Diaphragm Blades | 6pcs |
Lens Construction | 13 Elements in 9 Groups |
Minimum Focus | 13.5cm / 5.3in |
Maximum Magnification | 1:6 |
Motor Type | Hyper Sonic Motor |
Body Color | Black |
Included Accessories | 4.5mm Lens, Rear Lens Cap, Gelatin Filter Holder |
Weight | 470g |
Dimension | 76.2 x 77.8mm |
Sigma 4.5mm f/2.8 EX DC Circular Fisheye Lens for Canon EOS DSLRs (p/n 486954) . The Sigma 4.5mm EX DC lens is the first circular fisheye lens designed specifically for APS-C format digital SLR cameras. It produces a perfectly circular image of 12.3mm diameter and a 180 degree field of view in all directions. Its image is unlike any other type of lens and is useful for both special effects and scientific purposes. It also has a large f/2.8 maximum aperture making it suitable for use in low light.