# Is camera linking broken in 4.10.1?

**URL:** <https://discourse.slicer.org/t/is-camera-linking-broken-in-4-10-1/5668>\
**Category:** Support\
**Created:** [February 7, 2019, 4:41am UTC](https://discourse.slicer.org/t/is-camera-linking-broken-in-4-10-1/5668 "2019-02-07T04:41:41Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [February 7, 2019, 4:41am UTC](https://discourse.slicer.org/t/is-camera-linking-broken-in-4-10-1/5668/1 "2019-02-07T04:41:41Z")

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I can’t seem to link cameras in dual view in 4.10.1  
Steps:  
Choose Dual 3D layout  
Switch to cameras module,  
View1 choose create new camera  
View2 choose camera\_1 (or the newly created camera)  
Go back to View1 and see that there is no camera selected anymore. This is the warning given:

Warning: In D:\D\S\Slicer-4101\Libs\MRML\Core\vtkMRMLCameraNode.cxx, line 474

vtkMRMLCameraNode (00000221EC25DF60): SetActiveTag: vtkMRMLCameraNode3 found another node vtkMRMLCameraNode2 with the tag vtkMRMLViewNode2

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [February 7, 2019, 12:51pm UTC](https://discourse.slicer.org/t/is-camera-linking-broken-in-4-10-1/5668/2 "2019-02-07T12:51:34Z")

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You can link cameras by clicking “Link/unlink…” button in the 3D view controller.

![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/b/2/b2519f5226d14265e9a6a1ab6e8dbddc1f438889.png)

I think camera linking by choosing the same camera in multiple views was an unintended side effect (maybe even a bug), because one camera is supposed to be linked with one view.

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**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [February 7, 2019, 4:46pm UTC](https://discourse.slicer.org/t/is-camera-linking-broken-in-4-10-1/5668/3 "2019-02-07T16:46:00Z")

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Thanks! So, I was using a bug as a feature, huh.

I tried the link, rotations and pans work fine, but not the zoom. Is that also intended?