A new patent filing has revealed a design for a Canon RF 90mm f/2.8 IS STM Macro lens, according to Canon Rumors. This follows earlier reports suggesting Canon is developing a non-L macro option to complement its existing RF 100mm f/2.8L IS USM Macro lens. The latest patent closely resembles a prior design previously disclosed, indicating ongoing refinement of the concept.

The rumored lens would sit below Canon’s L-series macro offering in both price and build, targeting creators who need close-up capabilities without the premium cost of professional-grade optics. By using STM (Stepping Motor) technology, the lens would prioritize quiet, smooth autofocus—ideal for video and stills work in controlled environments. Image stabilization (IS) is also included, a valuable feature for handheld macro shooting where even slight movement can ruin focus.

Canon’s RF mount ecosystem continues to expand with specialized lenses like this one, addressing niche but growing demands among content creators, product photographers, and hobbyists. The 90mm focal length offers a comfortable working distance for macro subjects, reducing the risk of casting shadows or disturbing live subjects. While not confirmed as an imminent release, the recurrence of this design in patent filings suggests Canon remains actively exploring options to strengthen its macro lens lineup within the RF system.

No official specifications, pricing, or release timeline have been announced. The lens remains in the rumor phase, but its repeated appearance in patent activity underscores Canon’s commitment to diversifying its RF lens catalog with accessible, creator-focused tools. For now, the RF 100mm f/2.8L IS USM Macro stands as the current benchmark in Canon’s macro range.