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Canon EOS Ra Sensor Measurements at PhotonsToPhotos

Started Aug 13, 2020 | Discussions thread
GXAlan Regular Member • Posts: 223
Re: Canon EOS Ra Sensor Measurements at PhotonsToPhotos
1

What’s also interesting is that long exposures are different between the R and 5D4

https://www.brendandaveyphotography.com/canon-consistent-with-eos-r-rp/

I have sent Brendan some files from the Ra.  At 5 min, I was getting 54-ish with SD of 18-ish Which is also better than the regular R.

The Sony sensors are very good for terrestrial but they still have filtering for astro.  The GFX100 is spectacular but it’s not cost effective to convert it for Ha sensitivity.  A variant of the A7R4 sensor is available in a cooled Astro camera, but you lose the flexibility of the DSLR.

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