A 24-105mm zoom covers wide-angle, standard and telephoto focal lengths. A 5-stop Image Stabilizer preserves sharpness in low light, while Nano USM focusing benefits photographers and filmmakers. A supremely flexible and agile lens The RF 24-105mm f/4L IS USM makes it easy to get creative and achieve exceptional results. From indoor portraits to events outside, a 24-105mm zoom range lets you achieve more without changing lenses. An f/4 maximum aperture is consistent at all zoom settings. Clearly a great performer Aspherical and UD lens elements ensure excellent sharpness, which is preserved even when shooting handheld in low light, thanks to a 5-stop Image Stabilizer. Aspherical lens elements help to compensate for distortion and spherical aberrations plus allow a compact design. Stay sharp! Focus accurately and in virtual silence using Nano USM autofocus. Photographers will appreciate the speed with which critical sharpness is found, while filmmakers will love the smooth, steady focus