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Canon EOS Ra Sensor Measurements at PhotonsToPhotos

Started Aug 13, 2020 | Discussions thread
EthanCam Regular Member • Posts: 111
Re: Canon EOS Ra Sensor Measurements at PhotonsToPhotos

Very interesting, thanks for running the numbers, and thanks also to GXAlan for running the tests

I am intrigued by the lower read noise of the EOS Ra w.r.t. to EOS R / 5DIV at base ISO.

Assuming only the optical low-pass filter was changed, this should not change the read noise (in e-) in dark frames in my understanding. So here my questions:

  • Have you spotted some kind of 'NR' in the dark frames of the EOS Ra, like for the R5?
  • Or is it because the camera can use a lower conversion gain (e- to DN) due to increased sensitivity in the reds? (I would think this is the more likely explanation)

Cheers,

Ethan

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