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Old 21-11-2010, 04:42 PM
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Jeff
Starry Eyed

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Join Date: Dec 2007
Location: Wonga Park
Posts: 692
Camera pixel count - colour & mono

Hi All,

I have been considering purchasing a cooled astro camera for a while.

As part of researching various makes & models, I have been wondering why related mono and colour astro cameras typically list the same number of pixels. eg:
https://www.bintelshop.com.au/Product.aspx?ID=8537
https://www.bintelshop.com.au/Product.aspx?ID=8538

I have read that colour cameras typically incorporate a "bayer matrix" over the sensor filtering each 4 physical sensor pixels into primary colours (1 x red, 2 x green, 1 blue), combining into 1 colour pixel in the final image.

If that is the case, then shouldn't a mono camera image have 4 times as many pixels as a related colour camera (eg. Orion Parsec 8300M, versus Orion Parsec 8300C)? Or are the actual camera sensors completely different?

Can anyone advise?
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