The main features of Canon RF lenses are their small size, light weight, and high mobility on the basis of high image quality. This is evident in the RF70-200mm F4 L IS USM. With a length of 119mm (in the folded state) and a weight of 695g, it is not to mention that compared to the lens of the same specification as a DSLR, it can be regarded as short and concise even if it is placed in a mirrorless lens.
This lens has an optical design of 16 elements in 11 groups, and is equipped with 4 UD elements (ultra-low dispersion) to effectively compensate for chromatic aberration over the entire focus area, achieving vivid color quality. In addition, the ASX coating has a good anti-reflective effect, which can effectively reduce the generation of ghosting, and clear images can be obtained even when shooting against the light.
Although the maximum aperture is only F4, this lens is equipped with an IS optical image stabilization unit, which is mounted on the EOS R5 and R6, and can be linked with the anti-shake mechanism on the body to achieve up to 8 stops of stabilization. The lens offers three different stabilization modes, the first for still subjects such as portraits, and the second for follow-up shots, such as racing, track and field, and more. The third is suitable for shooting irregular sports subjects such as football and skateboarding. Users can choose the most suitable mode for shooting according to the actual shooting situation.
The lens also features floating focus technology, in which two nano USM ultrasonic motors drive two sets of lenses to focus, resulting in closer focusing distances and faster speeds. In addition, these two small nano USM ultrasonic motors also allow for a smaller lens size and a quieter focusing process.
RF70-200mm F4 L IS USM样张
Focal length: 186mm, aperture: f/4, ISO speed: 100, exposure time: 1/180s
Focal length: 118mm, aperture: f/4.0, ISO speed: 100, exposure time: 1/125s
Focal length: 200mm, aperture: f/4, ISO speed: 100, exposure time: 1/1600s
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