This ring has another different texture to the other two rings so again you can find it easily without looking at the lens. Depending on what you want to do, you can use it to change aperture, shutter speed, ISO or exposure compensation. Towards the front of the lens barrel there’s a slim white, knurled ring which you can use to quickly access different settings which you can customise from the camera body. The focusing ring has just enough give to it to make fine tuning manual focus nicely precise, without being too tight or too loose. It is similarly coloured and ridged to the zoom ring, but feels slightly different - if you’re not looking at the lens, you should be able to feel the difference in textures quite easily. Towards the rear of the lens barrel you’ll find the manual focusing ring ring which is about a quarter of the size of the zoom ring. It is quite audible in operation, though, emitting a distinctly metallic sound as you turn it - maybe this will lessen with time and use. The zoom ring is ridged to help you get a good grip on it, and like the rest of the lens feels very sturdy and high-quality. It is dark grey in colour and marked with four different focal lengths to help you quickly jump to the focal length you want - 100, 135, 300mm and 300mm. In the middle of the lens you’ll find the largest ring, which controls the zoom of the lens. Line the two up, and twist to lock the lens into place.Īround the Canon RF 100-300mm F2.8L IS USM lens there are three different rings to take note of. In order to attach the lens to the camera, you’ll see that there is a red line on the rear of the lens, which matches up to a similar red line on the camera body itself. The lens mount is a high-quality metal construction, which again feels very strong and secure. You’d achieve an even better balance by attaching the optional battery grip for the Canon EOS R5, too.Īs you'd expect, the lens feels incredibly well built, with the weatherproofing giving you confidence that you can shoot using this lens in all kinds of different conditions. We’ve been testing it with the Canon EOS R5, a camera body that it is very likely to be paired with by the professional users who are drawn to this lens in the first place. Weighing in at a whopping 2,590g / 91.4oz and measuring 32.3cm in length, this is not a lens for the faint-hearted! Note that it uses an internal zoom design and therefore does not extend as you zoom from 100mm to 300mm or vice-versa. The reach of the RF 100-300mm F2.8L IS USM can be increased up to 200-600mm f/5.6 with the RF 2x extender, or 140-420mm f/4 with the RF 1.4x extender, with no sacrifice in focus speed or durability and across the entire zoom range. The Canon RF 100-300mm F2.8L IS USM lens is available from May 2023 priced at £11,499 / €11,999 / $9,499 in the UK, Europe and the US, respectively. It also features a Dual Nano USM auto-focusing system incorporating both a ring type USM and an STM mechanism, fast, nearly silent autofocusing with full-time manual focus override, a 9-blade aperture for more attractive out of focus areas, and a rotating tripod collar. The lens has a configurable Control Ring which can be used to adjust a variety of exposure settings, including aperture, ISO, and exposure compensation. Canon's special white heat shield coating ensures consistent operation in high temperatures.Īn Optical Image Stabilizer helps to minimize the appearance of camera shake by 5.5 stops, with three different IS modes on offer. Optically, the lens design is comprised of 23 elements in 18 groups, including one Fluorite, four UD and one GMo aspherical elements to help achieve a higher degree of clarity and sharpness with virtually no distortion.Īir Sphere Coating (ASC) and Super Spectra Coatings (SSC) have been applied to the lens elements to help reduce backlit flaring and ghostingĪs this is an L series lens, Canon says it also boasts the highest possible build quality, which includes weather-sealing and fluorine coatings on both the front and rear elements to guard against water droplets and dust. Taking the popular EF 300mm f/2.8 prime lens as their starting point, Canon have designed the new RF 100-300mm f/2.8 to offer the same levels of sharpness and image quality whilst offering the versatility of a zoom for more easily tracking moving subjects. The Canon RF 100-300mm F2.8L IS USM is a professional telephoto zoom lens for Canon's extensive range of full-frame mirrorless cameras.
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