RF-Mount Lens/Full-Frame Format Aperture Range: f/1.8 to f/22 One UD Element, One Aspherical Element Super Spectra Coating STM Stepping AF Motor 1:2 Max. Magnification, 5.5" Min. Focus Optical Image Stabilizer Customizable Control Ring Rounded 9-Blade Diaphragm Mixing a broad field of view with a close-focusing design, the Canon RF 24mm f/1.8 Macro IS STM is a unique combination of an ultra-wide focal length and a macro lens. Pairing these two attributes, this lens enables shooting at close-range while maintaining a broad sense of space and increased depth of field compared to conventional.