Canon Ef 24Mm F2.8 Is Usm. This is a 24mm wide-angle prime lens with an 84° angle of view on full-frame DSLRs, making it perfect for landscape photographers. On EOS cameras with APS-C sized sensors, it provides an angle of view equivalent to a 38mm lens on a full-frame camera, serving as a useful alternative to a standard lens. This lens allows for shooting in low-light conditions with a maximum aperture of f/2.8, enabling hand-held photography in available light without flash. The integrated image stabilization allows the use of shutter speeds up to four stops slower than usual without the risk of camera shake. Its ultrasonic autofocus motor (USM) ensures fast, near-silent focusing, and full-time manual focus override allows for fine adjustment without changing focus modes. Get close to your subject with a minimum focusing distance of just 0.2m and enjoy a dramatic wide-angle perspective. Weighing only 280g and measuring 68.4mm x 55.7mm, this lens is designed for portability, making it great for reportage and travel photography. It features a seven-bladed circular aperture for beautiful bokeh and Super Spectra coatings to reduce flare. The lens's classic prime-lens design minimizes distortion and aberrations. It is a portable wide-angle prime lens suited for reportage, landscape, and travel photography. Key specifications include: Image stabilizer: Yes, Number of diaphragm blades: 7, Closest focusing distance: 0.20 m, Maximum aperture number: 22, Lens mount interface: Canon EF, Fixed focal length: 24 mm, Lens type: Wide lens, Lens structure (elements/groups): 11/9, Component for: MILC, Maximum magnification: 0.23x, AF actuator: USM, Weight: 280 g, Length: 55.7 mm, Filter size: 58 mm, Diameter: 6.84 cm.