RF 24-105mm f/2.8 L IS USM Z Lens from Canon is the first of its kind at this focal length and aperture. By utilizing dual Nano USM motors, this lens achieves fast and nearly silent autofocusing. The constant f/2.8 aperture allows for optimal low light performance and provides flattering bokeh for portraits at any focal length. In-lens optical image stabilization offers five and a half stops of correction, or eight stops with Coordinated IS when paired with a compatible camera. Four ultra-low dispersion elements and three aspherical elements help create sharper images and reduce chromatic and spherical aberrations.