Why didn't Canon launch the RF-S lens mount and an affordable mirrorless camera years ago?

 Canon RF-S 18-150mm F3.5-6.3 IS STM
(Image credit: Future)

Perhaps overlooked during the launch of Canon’s long-awaited first APS-C EOS R mirrorless cameras – the Canon EOS R7 and EOS R10 – was the release of two new RF-S mount kit lenses. The RF-S 18-45mm F4.5-6.3 IS STM and RF-S 18-150mm F3.5-6.3 IS STM are the first of their kind, and are vastly smaller, lighter and cheaper than their RF counterparts.

As the Editor of the Canon-centric PhotoPlus magazine I'm keen to dissect the new RF-S lens mount, which has been designed to complement the 1.6x crop factor APS-C sensor EOS R APS-C mirrorless cameras.

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Peter Travers

The editor of PhotoPlus: The Canon Magazine, Peter 14 years of experience as both a journalist and professional photographer. He is a hands-on photographer with a passion and expertise for sharing his practical shooting skills. Equally adept at turning his hand to portraits, landscape, sports and wildlife, he has a fantastic knowledge of camera technique and principles. As you'd expect of the editor of a Canon publication, Peter is a devout Canon user and can often be found reeling off shots with his EOS 5D Mark IV DSLR.