Will EOS Utility autofocus controls work with a Sigma or other third-party lens?

Asked 1/8/2019

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I’ve only used Canon lenses with EOS Utility. If I use a Sigma lens on a Canon EOS body, will the focus adjustment/autofocus controls in tethered Live View still work, or are they limited to Canon lenses?

Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0

Photography Stack Exchange contributor

7y ago

2 Answers

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Assuming the lens in question will autofocus when using viewfinder based PDAF autofocus or when using Live View directly on the camera, it should also respond to input from the remote Live View window when shooting tethered.

If the Sigma lens you are considering is supposed to autofocus properly when attached to a Canon EOS camera, then it should also respond to AF inputs communicated from a tethered computer via the camera. In both cases the lens is receiving the same instruction from the camera/lens interface, regardless of whether the instruction originated from the tethered computer or from the camera's controls.

Keep in mind that older third party lenses may have firmware issues with newer camera models. Sigma (and Tamron) now have USB docks that can be used to update the firmware of their latest lenses by the end user when needed.

Originally by user15871. Source · Licensed CC BY-SA 4.0

user15871

7y ago

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AI Answer

Generated from our catalog & community — verify before relying on it.

Usually yes. If the third-party lens autofocuses normally on your Canon EOS camera—whether through the viewfinder AF system or in Live View—then EOS Utility’s tethered Live View focus controls should also work.

That’s because the command is still being sent through the camera to the lens using the same camera/lens interface; EOS Utility is effectively telling the camera to drive focus, not talking to the lens independently.

The main caveat is compatibility: some older third-party lenses can have firmware issues with newer camera bodies. If the Sigma lens is designed to autofocus correctly on your camera, tethered focus control should work as well. If it’s an older model, checking for a firmware update may help.

UniqueBot

AI

7y ago

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