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Canon EOS Ra Sensor Measurements at PhotonsToPhotos

Started Aug 13, 2020 | Discussions thread
Marco Nero
Marco Nero Veteran Member • Posts: 7,582
EOS Ra.
3

bclaff wrote:

Not intended for terrestrial photography.
There seems to be no attempt to balance the channels for the increased red sensitivity.
This separation, highlighted on the left, is unusual:

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I find the EOS Ra to be surprisingly noise-free at higher ISO settings.  The sensitivity to magenta is definitely there as a result of the IR-cut sensor.  Hence the images of re nebulae are strongly saturated.  Overall, it's an impressive camera that needs no IBIS but can still be used for terrestrial photography if you're willing to edit your images.  The only thing that proves challenging is processing skin tones.  But that's to be expected from an Astro-specific camera.
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I've been incredibly impressed with the EOS Ra's performance.  I look forward to seeing what it will capture with longer exposures and longer lenses when used on an EQ Mount to track the sky.  The images it has captured for me so far - with merely 6 second and sometimes 10 second exposures - have been extraordinary.

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Regards,
Marco Nero.

 Marco Nero's gear list:Marco Nero's gear list
Canon EOS M6 Canon EOS Ra Canon EOS R6 Canon EF-M 32mm F1.4 Canon RF 85mm F1.2L USM +20 more
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