The Canon RF 28-70mm f/2L USM is one of the lenses from the Canon RF family. This lens is the first and only f / 2 standard zoom lens for a full frame. Canon offers zoom flexibility combined with fast maximum aperture of prime quality – the only standard zoom lens we have ever reviewed with a maximum f / 2 aperture. This RF series lens has a hefty weight. So that its size is bigger than other RF series.
The Canon RF 28-70mm f/2L USM consists of 19 elements in 13 groups. Includes four aspherical elements, a pair of Ultra Low Dispersion (UD) elements and Super UD elements. In addition, the Canon RF 28-70mm f/2L USM is also equipped with an Ultrasonic Motor for fast and quiet automatic focusing. Fluorine coatings on front and rear lens elements, SWC and ASC coatings to help reduce ghosting and flare. Next are 9 round diaphragm blades for smoother bokeh, zoom lock switch to prevent lens creep, and weather-resistant construction.
Then what about the performance of this lens ?. Following is a review of the Canon RF 28-70mm f/2L USM.
Body Canon RF 28-70mm f/2L USM
Canon RF 28-70mm f/2L USM has a large size. Even this lens is very heavy. This lens has a weight of 1430g and measures a length of 14cm, which extends to 16cm when the lens is set to 70mm. However, for the size of the zoom lens, the weight of the Canon RF 28-70mm f/2L USM is still considered reasonable. Classified with other modern zoom cameras, the weight of the Canon RF 28-70mm f/2L USM lens is still classified as normal.
It is best to think of this lens as four high-quality prime lenses in one, rather than just a standard zoom, in this case making more sense from a size point of view.
Like other RF lenses, the Canon RF 28-70mm f/2L USM lens is also equipped with a Canon RF 28-70mm f/2L USM. Its function is to control certain main camera settings. Additionally it can be used to change various settings including aperture, shutter speed, ISO and exposure compensation.
Read too about RF Lens: Canon RF 24-105mm f / 4L IS USM Review
Features of the Canon RF 28-70mm f/2L USM
The Canon RF 28-70mm f/2L USM lens has a top-notch optical design. Top-notch optical design combines two ground aspherical elements. These are two Glass-Molded (GMo) aspherical elements, two UD (Ultra-low Spread) elements and one Super UD element. Some coatings include SWC (Subwavelength Structure Coating) and ASC (Air Sphere Coating).
Furthermore, the Canon RF 28-70mm f/2L USM lens has a wide focusing ring. Other than that. Its location is easy to find. The Canon RF 28-70mm f/2L USM has a rubber band handle. However, Canon RF 28-70mm f/2L USM is more difficult to set focus to infinity. Polariser users should be happy that the large 95mm filter thread does not rotate in focus. Regarding autofocusing, the USM zoom Canon RF 28-70mm f/2L is a very fast player, it takes about 0.10 seconds to lock the subject when mounted on the Canon EOS R camera that we tested with.
However, the Canon RF 28-70mm f/2L USM is not equipped with an image stabilization feature. Canon RF 28-70mm f/2L USM relies on fast aperture when shooting in low light. It should be noted that almost all other top-of-the-range zoom lenses usually offer a maximum aperture of f / 2.8, the overall stop is slower than the Canon RF 28-70mm f/2L USM, which is one of the main reasons for the size and weight of this lens.
Canon RF 28-70mm f/2L USM has very fast autofocus but is not completely silent. The sharpness of the center is spectacular throughout the zoom range, even when shooting wide open at f / 2, although the sharpness of the corners at the short end is disappointing. On the other hand, the Canon RF 28-70mm f/2L USM produces great colors. It also produces 3D effects on images. At f/2, beautiful bokeh with negligible longitudinal or bokeh edges, and a very smooth transition from sharp to unfocused areas. Furthermore, this lens also capable of producing solar stars that are quite good when stopped down to f / 16 or f / 22.
This RF series sells for £ 3079.99 or $ 2999.99. Canon created this lens as a good lens for travel, wedding and photo journalism photography. Despite having a large size and quite heavy, Canon RF 28-70mm f/2L USM has different advantages for the other two uses. Like the zoom flexibility feature for fast framing composition. Additionally the fast aperture rating allows tight depth of field. The Canon RF 28-70mm f/2L USM is also supported by fast shutter speeds for freezing motion, even under very gloomy lighting conditions.