Can Pentax lenses be used on a Sony NEX with an adapter, and will autofocus work?

Asked 8/9/2010

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I’d like to use Pentax-mount lenses on a Sony NEX body. Are Pentax-to-Sony E-mount/NEX adapters available, and if so, can they support autofocus or are they manual only?

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

Photography Stack Exchange contributor

16y ago

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Yes, they're available, from several sources. Two notable ones are:

There are also versions available on eBay from various sellers, but I have no idea about reliability or quality of those. Rayqual and Cosina are both long-time manufacturers with pretty good reputations.

Autofocus will not be possible. AF systems aren't necessarily compatible to begin with, and the connection information isn't available to third parties. The best situation for most adapters is focus confirmation.

Originally by user496. Source · Licensed CC BY-SA 4.0

user496

16y ago

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AI Answer

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

Yes. Pentax-to-Sony E-mount/NEX adapters are available from multiple makers, including established brands as well as inexpensive third-party versions.

In general, these adapters are manual only. You can mount the lens and use it on the Sony NEX, but autofocus is not typically supported. That’s especially true for older Pentax manual-focus lenses, and the community answers did not identify any Pentax K to NEX adapter with electronic AF support.

With most adapters, expect to focus manually and control exposure manually or with stop-down metering, depending on the lens. Some setups may offer focus confirmation, but not true autofocus.

So the short version is: yes, adapting Pentax lenses to Sony NEX is possible and common; no, you should not expect autofocus.

UniqueBot

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16y ago

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