RF24-105mm f/4-7.1 IS STM: A Versatile Standard Zoom Lens that Even Shoots Macro
On 13 February 2020, Canon announced the RF24-105mm f/4-7.1 IS STM, a new standard zoom lens for the RF mount. Covering the 24mm to 105mm focal range and weighing a mere 395g, the lens offers further portability to match Canon’s EOS R full-frame mirrorless camera series. 1) Small, light and versatile 2) What the zoom range can do 3) Amazing macro capabilities 4) Fast, smooth and quiet AF, perfect for both stills and video 5) Key specifications 6) Sample images RF24-70mm f/2.8L IS USM and RF24-105mm f/4L IS USM standard zoom lenses and one superzoom lens, the RF24-240mm f/4-6.3 IS USM), many photographers desire a lens that is smaller and lighter than any of the three. Enter the new RF24-105mm f/4-7.1 IS STM, which comes in a compact, lightweight form factor that perfectly complements relatively small and light full-frame mirrorless cameras like the EOS R and EOS RP. With this, users can look forward to a lighter load and additional convenience, regardless of whether they are exploring the sights and sounds of a foreign town, or shooting more familiar subjects closer to home. The EOS RP with the RF24-105mm f/4-7.1 IS STM attached. The RF24-105mm f/4-7.1 IS STM is as much as 305g lighter than its fixed aperture counterpart, the RF24-105mm f/4L IS USM. This will appeal to users who prioritise comfort and portability, especially if they tend to walk around for long hours with their gear. The secret to excellent image quality within a compact body lies in the rearmost lens RF24-105mm f/4-7.1 IS STM extends and retracts when you zoom in and out. Its maximum diameter is 76.6mm, which, combined with its 88.8mm length when fully retracted (to the wide-angle end), makes it relatively compact compared to the RF24-105mm f/4L IS USM (see below).EOS RP/ RF24-105mm f/4-7.1 IS STM/ FL: 28mm/ Aperture-priority AE (f/5, 1/10 sec, EV+0.3)/ ISO 800/ WB: Auto Closest focusing distance: 13cm). This allows you to use the Center Focus Macro, which provides unique wide-angle macro images that gradually melt from tack sharpness in the in-focus image centre into beautiful bokeh closer to the edges. A macro lens is usually defined as one capable of 0.5x magnification or more, which means that the RF24-105mm f/4-7.1 IS STM is effectively capable of performing like one. Adding that to the list of scenes that the lens is already capable of handling makes an impressive resume indeed. Up to 0.4x magnification at 105mm EOS RP/ RF24-105mm f/4-7.1 IS STM/ FL: 105mm/ Aperture-priority AE (f/7.1, 0.5 sec, EV+1)/ ISO 100/ WB: Auto 0.5x magnification when manual focusing at 24mm (Center Focus Macro) EOS RP/ RF24-105mm f/4-7.1 IS STM/ FL: 24mm/ Manual exposure (f/4, 1/5 sec)/ ISO 100/ WB: Color temperature - 5000K 105mm (AF/MF) Closest focusing distance: 0.34m Maximum magnification: 0.40x 24mm (AF) Closest focusing distance: 0.20m Maximum magnification: 0.21x 24mm (MF) Closest focusing distance: 0.13m Maximum magnification: 0.50x* To activate MF, switch the focus mode in the camera menu. Dual Sensing IS (image stabilisation), which uses camera shake information from the gyro sensors in the lens as well as image data acquired by the CMOS image sensor in the camera body for more precise and accurate image stabilisation. This makes the lens capable of up to 5 shutter speed stops’ equivalent image stabilisation—the perfect aid to achieve sharp, blur-free images when shooting stills by hand indoors or in places with dim lighting. For video shooting, the lens supports Combination IS, which uses the in-lens IS as week as the 5-axis in-camera digital IS system to effectively correct significant shaking. As a result, handheld footage is smoother and of higher quality than ever. RF24-105mm f/4-7.1 IS STMIn Focus: RF Lenses Can't decide whether to buy the EOS R or EOS RP? Check out: EOS R vs EOS RP: Which to Choose?
The rearmost lens element is larger than on traditional lenses—take a look and see for yourself!
How was Canon able to achieve image quality on this lens even with its small, lightweight body? One of the secrets lies in the large-diameter rearmost lens element. One key to designing a lens with minimal aberration is to reduce diffraction by making light waves bend more gently. This is achieved by using a bigger rearmost lens element. Doing so was possible on the RF24-105mm f/4-7.1 IS STM because of the unique RF mount design with its large mount diameter and short back focus distance. As a result, the RF24-105mm f/4-7.1 IS STM achieves sharp corner-to-corner resolution with minimal aberrations.
EOS RP/ RF24-105mm f/4-7.1 IS STM/ FL: 24mm/ Manual exposure (f/4, 1/20 sec)/ ISO 100/ WB: Auto/ MF at 0.5x magnification
During MF, the closest focusing distance is 13cm. This means that the subject can be as close as around 2.5cm away from the front of the lens and still be in focus.