# \#physical-defocus

**URL:** https://forum.logik.tv/tag/physical-defocus/800.md

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## [Z depth artifacts](https://forum.logik.tv/t/z-depth-artifacts/14685)

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**Author:** [@imag4media](https://forum.logik.tv/u/imag4media)\
**Replies:** 1\
**Last updated:** [July 22, 2026, 4:40pm UTC](https://forum.logik.tv/t/z-depth-artifacts/14685 "2026-07-22T16:40:35Z")

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I’ve never found rhyme or reason for why these pop up in physical defocus. Think it has to do with adjusting the depth channel. Anyone find any insight on why this happens and how to fix? Thx in advance. Andy D.

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## [Physical defocus offsets slices in random directions](https://forum.logik.tv/t/physical-defocus-offsets-slices-in-random-directions/10052)

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**Author:** [@leovfx](https://forum.logik.tv/u/leovfx)\
**Replies:** 2\
**Last updated:** [February 9, 2024, 6:31pm UTC](https://forum.logik.tv/t/physical-defocus-offsets-slices-in-random-directions/10052 "2024-02-09T18:31:50Z")

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Hi, Does anybody else notice that physical defocus offsets the slices in various random directions? It’s quite annoying in a shot with static focus, but makes it completely unusable in any shot with any kind of change …