The Canon RF 45mm f/1.2 STM is a fixed focal length prime lens designed for the RF mount, offering a versatile perspective that sits between traditional wide-angle and portrait lengths. Its exceptionally bright f/1.2 maximum aperture allows you to capture images in very low light and create a shallow depth of field with a smooth, blurred background, which is supported by a 9-blade diaphragm for pleasing bokeh. The optical design consists of 9 elements in 7 groups, including a PMo aspherical lens to help maintain image clarity. Handling is intuitive thanks to a dedicated focus ring and a knurled control ring that you can customize to adjust settings like shutter speed, aperture, ISO, or exposure compensation. A physical AF/MF switch allows for quick transitions between automatic and manual focusing. The gear-type stepping motor ensures quiet and smooth autofocus, making it a reliable choice for both still photography and video. Measuring 78.0 x 75.0 mm and weighing only 346 g, this lens is compact enough for all-day carry without adding significant bulk to your camera bag. It features a 67 mm filter thread and a minimum focusing distance of 0.45 m, allowing you to get relatively close to your subjects. The package includes E-67 II and RF caps to keep the glass protected during transport.