Marketed	April 2020
Original Price	Open price
Lens Construction (group)	11
Lens Construction (element)	13
No. of Diaphragm Blades	7 (circular aperture)
Minimum Aperture	22 (at 24 mm), 40 (at 105 mm)
Closest Focusing Distance (m)	AF: 0.2 m (at 24 mm), MF: 0.13 m (at 24 mm)
Maximum Magnification (x)	AF: 0.4 (105mm), MF: 0.5 (24 mm)
Filter Diameter (mm)	67
Maximum Diameter x Length (mm)	Approx. 76.6×88.8
Weight (g)	Approx. 395

Thanks to the wide diameter and short back focus¹ that characterize the RF mount, the rear lens group (the lens group closest to the camera’s sensor) of the RF24-105mm F4-7.1 IS STM can accommodate a larger lens. This helps the lens realize a design that is both compact at a length of approximately 88.8 mm and lightweight at approximately 395 g. In addition, the lens achieves high image quality from the center of the image field to the peripheral areas across the entire zoom range, from 24 mm at the wide end to 105 mm at the telephoto end.

The RF24-105mm F4-7.1 IS STM utilizes a lead-screw-type design which, when paired with the Dual Pixel CMOS AF technology found on Canon’s mirrorless cameras, enables high-speed, high-accuracy autofocus when shooting stills and smooth autofocus that follows moving subjects when shooting video. What’s more, the lens achieves significant image stabilization equivalent to approximately 5 shutter-speed stops², enabling easier shooting in low-light indoor environments or nighttime outdoor locations.

Thanks to optimization of the rear lens group, including the focus lens group, the lens is capable of AF-enabled image capture from distances as short as 0.2 m. When using the Center Focus Macro function, users can capture images with manual focus from a minimum distance of 0.13 m, or approximately 2.5 cm from the end of the lens—providing users with a new way to enjoy photography and expand their range of visual expression.

1 A short distance between the optical axis from the vertex of the rear lens element to the imaging plane.
2 When used with the EOS R at a focal length of 105 mm. Based on CIPA standards.