#21  
Old 15-08-2015, 04:09 PM
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I was looking at those. Should perform alright. The question is, how will it interpolate the lum data with the rgb? Can you separate it and process it independently of the rgb?

I'
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  #22  
Old 15-08-2015, 04:32 PM
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Quote:
Originally Posted by DavidTrap View Post
Has anyone seen any reports of the Sparse Colour chips being offered by SBIG in the STF-4070SC cameras??

Not the standard RGGB Bayer array, but some clear pixels to gather luminance data amongst the RGB pixels.

I emailed SBIG - there are some in the hands of astronomers, but I couldn't find any images on the forums.

DT

There was an image done by RJ Gabany with the 8050 chip in an Apogee Ascent camera a couple of years ago. Not sure if it was one shot sparse colour (I think it was).

It was of the Dumbbell and it was stunning.Try googling for it.

Greg.
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Old 16-08-2015, 06:48 AM
LewisM
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Greg, no, it was a mono 8050:http://www.cosmotography.com/images/small_ngc6853.html
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  #24  
Old 16-08-2015, 06:58 PM
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Thanks Lewis for tracking that down. Certainly an impressive image!

DT
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Old 16-08-2015, 08:47 PM
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But its hard to judge performance of the camera in a way as its a 20 inch RCOS scope on a PME at a high end dark mountain site.

So conditions are super ideal, exposure is very long. But its a super image.

The advantage of the 8050 over the KAF8300 is that its an interline sensor rather than full frame with its potential for RBI.

Greg.
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  #26  
Old 16-08-2015, 09:30 PM
Hans Tucker (Hans)
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Interesting, Greg says the 8050 is an interline sensor but I note that GaBany used Astrodon E-series filters for this impressive image. I wonder if there is any significant difference between the E & I series filters that Astrodon manufactures.
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