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IR light leak - can it be removed with dark frame calibration?

Mirrorless Processing Deep Sky Artifacts
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RammaN avatar
RammaN avatar
I have a Sony a7r2, there is a IR sensor in the camera that times the shutter. This bleeds IR light into every frame. To me it looks consistent in each frame.
  With being consistent, can i remove this signal with dark frames? Will i lose actual light frame signal?
andrea tasselli avatar
andrea tasselli avatar
I have a Sony a7r2, there is a IR sensor in the camera that times the shutter. This bleeds IR light into every frame. To me it looks consistent in each frame.
  With being consistent, can i remove this signal with dark frames? Will i lose actual light frame signal?

In principle you should be able to remove it with the right master dark frame. And you wouldn't lose any signal in the process (at the expense of a slight increase in noise).
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