The RF10-20mm F4 L IS STM lens recently released by Canon will be launched soon, with a price tag of RMB 17,699.
Attaches an introduction to the Canon RF10-20mm F4 L IS STM lens as follows:
Canon said that the new lens takes advantage of the EOS R system’s large bayonet diameter and short back focus distance, and uses a variety of special lenses and advanced coating technologies to achieve an amazingly wide viewing angle and consistent performance while being compact and lightweight. L-level high-level optical performance. The RF10-20mm F4 L IS STM also has a built-in IS image stabilizer, which can achieve level 5 image stabilization (CIPA standard). The built-in image stabilization function of the lens can achieve up to level 6 (CIPA standard) when controlled in conjunction with the camera body’s anti-shake. ) 3 anti-shake effect.
The Canon RF10-20mm F4 L IS STM lens applies a variety of Canon’s new optical technologies to deliver sharp images at the edges of the frame throughout the entire zoom range. This lens uses 3 aspherical elements, 1 Super UD lens that can effectively suppress chromatic aberration, and 3 UD lenses (including 1 UD aspherical lens) that can comprehensively suppress various aberrations. The Canon RF10-20mm F4 L IS STM lens achieves L-level high image quality through optimized optical design and distortion correction by the camera body. It achieves a minimum focusing distance of approximately 0.25m and a maximum magnification of approximately 0.12x (at 20mm) throughout the entire zoom range. The shorter minimum focusing distance can help photographers take close-up shots with the subject more prominent, enhance the unique perspective of wide angle, and shoot shocking images.
Canon RF10-20mm F4 L IS STM uses Air Spherical Coating (ASC) and Sub-Wavelength Structure Coating (SWC) technologies, which have better anti-reflective effects than ordinary evaporated coatings, which can significantly reduce the appearance of the edges of lenses with large curvatures (such as wide-angle lenses). glare and ghosting phenomena. The lens has an F4 constant aperture throughout its focal length and uses 9 aperture blades to form a circular aperture, which provides a nearly circular spot shape, resulting in a beautiful and smooth bokeh effect.
The widest focal length of the Canon RF10-20mm F4 L IS STM lens is extended to 10mm. Compared with the EF 11-24mm f/4L USM, the overall length of the lens is shorter and the weight is about half of the EF 11-24mm f/4L USM lens. Although it is an ultra-wide-angle lens, it has good portability due to its integrated lens hood design. In addition, since the center of gravity of the Canon RF10-20mm F4 L IS STM is closer to the camera, it is very convenient to shoot while holding it handheld or using a stabilizer.
The length of the Canon RF10-20mm F4 L IS STM is about 112mm, the diameter is about 83.7mm, and the weight is about 570g. Even when paired with the Canon EOS R5, the overall weight is only about 1308g (including the camera’s battery and memory card). Canon RF10-20mm F4 L IS STM adopts the “bulb” shape of a traditional ultra-wide-angle lens, so it is impossible to install a filter on the front end of the lens. The bracket for installing the filter is designed on the rear end of the lens, and user-cut gelatin can be inserted. Filters such as ND filters are useful when taking landscape photos or shooting short videos with the aperture wide open.
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