The Canon RF 70-200mm F4 L IS USM is a compact telephoto zoom lens designed for the EOS R series of full-frame mirrorless cameras. This professional L-series optic delivers outstanding optical performance with a constant f/4 aperture, ideal for wildlife, sports, and travel photography. Its 16-element design features four ultra-low dispersion elements to minimise chromatic aberration, whilst Air Sphere Coating reduces flare and ghosting. The dual Nano USM autofocus system ensures fast, nearly silent focusing across the entire zoom range, with a minimum focus distance of just 0.6 metres. An optical image stabiliser provides up to 5 stops of shake correction, or 7.5 stops when paired with an EOS R camera body with in-body image stabilisation. Weather-sealed construction with fluorine coatings on the front and rear elements protects against dust and moisture, making this lens a dependable performer in challenging conditions. At just 695 grams and measuring 119mm collapsed, it is Canon's shortest and lightest 70-200mm f/4 lens to date, striking the perfect balance between professional image quality and portability.