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Topic » Canon RF 100-500mm f/4.5-7.1L IS USM

Canon RF 100-500mm Teardown

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The Secret of the Broken Element: A Canon RF 100-500mm f4.7-7.1 Teardown

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In ancient times, the IS unit in Canon EF lenses was physically locked down, so the unit didn’t make rattling noises when the lens wasn’t powered up. Canon decided the lockdown was no longer necessary in modern times, so some RF lenses, like the Canon RF 100-500mm f/4.5-7.1, rattled when the lens wasn’t mounted to the […]

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