Canon has announced the RF 100mm f/2.8 L Macro IS USM, the “world’s first medium telephoto macro autofocus lens with a maximum magnification of 1.4x” for mirrorless that is designed for a wide range of photographers and that offers a unique new feature: a Spherical Aberration (SA) Control Ring. The SA control ring allows users to change the character and appearance of the bokeh and obtain a softer focus effect with a simple turning of the ring to the desired result.

Additional features of the Canon RF 100mm f/2.8L Macro IS USM include:

• Optical Image Stabilizer with up to five stops of Shake Correction.
• When combined with a camera featuring In-Body Image Stabilizer, up to eight stops of shake correction is possible with the coordinated operation of Optical and In-Body Image Stabilizer.
• Hybrid IS helps to compensate for angular and shift camera shake during macro shooting.
• High-speed, smooth and quiet autofocus with dual nano USM.
• Customizable control ring that allows photographers to adjust exposure compensation, shutter speed, aperture, or ISO.
• Rugged Canon L-series dust and water-resistant design.

The lens has 17 elements in 13 groups and uses a Super Spectra coating to reduce flare and ghosting. The lens’ autofocus system is powered by ‘Dual Nano USM’: two Nano USM linear motors ensure quick and silent focus, which afford a significant improvement over the ring-type USM drive found in the previous 100mm Macro. The lens also has a control ring for adjusting settings such as ISO and Exposure Compensation and is threaded for 67mm filters.

As with all Canon recent L-series lenses, the 100mm f/2.8 is sealed against dust and moisture and has a fluorine coating on the front element to repel oil and water.
The Canon RF 100mm f/2.8L Macro IS USM will be available in July at $1,400.