Compatible with RF 1.4X and 2X teleconverters
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Compatible with RF 1.4X and 2X teleconverters

The 100-500mm is compatible with Canon's new RF 1.4X and 2X teleconverters, but only at focal lengths of 300mm and longer. A locking mechanism prevents their use at wider focal length positions, where damage might occur to the lens' rear element.

The RF100-500mm F4.5-7.1 L IS USM lens is scheduled to be available in September 2020 for an estimated retail price of $2,699. The RF Extender 1.4x and 2x are scheduled to be available at the end of this month for an estimated retail price of $499.99 and $599.99.