# MLCameraMetadataControlAFState\_PassiveScan

**URL:** <https://forum.magicleap.cloud/t/mlcamerametadatacontrolafstate-passivescan/1015>\
**Category:** Hardware Troubleshooting\
**Created:** [October 4, 2022, 7:29pm UTC](https://forum.magicleap.cloud/t/mlcamerametadatacontrolafstate-passivescan/1015 "2022-10-04T19:29:46Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Dag.N\_Derpaa](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.magicleap.cloud/dag.n_derpaa/32/393_2.png) [@Dag.N\_Derpaa](https://forum.magicleap.cloud/u/Dag.N_Derpaa)\
**Post date:** [October 4, 2022, 7:29pm UTC](https://forum.magicleap.cloud/t/mlcamerametadatacontrolafstate-passivescan/1015/1 "2022-10-04T19:29:46Z")

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Are there any limits for how long the PassiveScan can be activated before you get any heat or power issues?

Ref:

MLCameraMetadataControlAFState\_PassiveScan:  
AF is currently performing an AF scan initiated by the camera device in a continuous autofocus mode.

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**Author:** ![kdowney](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.magicleap.cloud/kdowney/32/481_2.png) [@kdowney](https://forum.magicleap.cloud/u/kdowney)\
**Post date:** [October 19, 2022, 6:06pm UTC](https://forum.magicleap.cloud/t/mlcamerametadatacontrolafstate-passivescan/1015/3 "2022-10-19T18:06:56Z")

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Hi there, I'm reaching out to our engineers and will reply asap. Thanks very much.

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**Author:** ![kvlasova](https://avatars.discourse-cdn.com/v4/letter/k/f6c823/32.png) [@kvlasova](https://forum.magicleap.cloud/u/kvlasova)\
**Post date:** [October 19, 2022, 6:18pm UTC](https://forum.magicleap.cloud/t/mlcamerametadatacontrolafstate-passivescan/1015/4 "2022-10-19T18:18:45Z")

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Right now our answer is no, currently we do not have time limits on the AF scan. Theoretically, once AF converges the lens will not move again until the scene changes so it shouldn't be moving continuously, but even if it did our engineers have not yet seen any issues related to heat and/or power with the lens.

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**Author:** ![kvlasova](https://avatars.discourse-cdn.com/v4/letter/k/f6c823/32.png) [@kvlasova](https://forum.magicleap.cloud/u/kvlasova)\
**Post date:** [October 19, 2022, 6:19pm UTC](https://forum.magicleap.cloud/t/mlcamerametadatacontrolafstate-passivescan/1015/5 "2022-10-19T18:19:55Z")

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Closed on October 19, 2022, 6:19pm UTC