The Canon RF 16-28mm f/2.8 IS STM is an ultra-wide-angle zoom lens designed for full-frame cameras with the RF mount, making it a versatile choice for capturing expansive landscapes or tight architectural spaces. Its constant maximum aperture of f/2.8 allows you to work in lower light conditions and achieve a shallower depth of field, while the 9-blade diaphragm helps create smooth background blur. Inside the barrel, 16 elements arranged in 13 groups manage the wide perspective, complemented by an STM stepping motor that ensures autofocus is quiet and fluid. To keep your shots steady when shooting handheld, the lens includes built-in image stabilization, which you can easily toggle using the dedicated stabilizer switch alongside the AF/MF control. Weighing 445g and measuring 122mm in length with a diameter of 76.5mm, this lens remains portable enough for all-day use. It comes equipped with an EW-73E lens hood and an E-67 II cap, utilizing a 67mm filter diameter that fits standard accessories for those who need extra protection or lighting control.