# How does vtkCamera reflect camera pinholemodel

**URL:** https://discourse.vtk.org/t/how-does-vtkcamera-reflect-camera-pinholemodel/341
**Category:** Support
**Created:** [February 27, 2019, 8:49am UTC](https://discourse.vtk.org/t/how-does-vtkcamera-reflect-camera-pinholemodel/341 "2019-02-27T08:49:47Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![pettaa123](https://discourse.vtk.org/user_avatar/discourse.vtk.org/pettaa123/32/218_2.png) [@pettaa123](https://discourse.vtk.org/u/pettaa123)
#### Post date: [February 27, 2019, 8:49am UTC](https://discourse.vtk.org/t/how-does-vtkcamera-reflect-camera-pinholemodel/341/1 "2019-02-27T08:49:47Z")

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I read the vtk book and googled but couldnt find a state towards how the vtkCamera reflects the pinholemodel.  
I simulate a real camera, from which i have the focallength/diagonal viewangle and exactly known chip position in worldcoordinates. How do I have to setup vtkCamera that it images the scene like the real camera. “as real as it can get under the assumptions of pinhole”

🙂