[AZ-Observing] Re: Monochrome Meade DSI
- From: Jeff Hopkins <phxjeff@xxxxxxxxxxx>
- To: az-observing@xxxxxxxxxxxxx
- Date: Thu, 7 Apr 2005 18:43:15 -0700
I believe they are using the ICX248AL chip. You can get .pdf of the
spec sheet at
http://products.sel.sony.com/semi/PDF/ICX248AL.pdf
Meade indicates they are using a 16 bit analog to digital converter,
but no details on well depth or dynamic range. still it has got to be
a big improvement over the 8 bit units.
Jeff
At 08:54 -0700 4/7/05, Andrew Cooper wrote:
>Pretty good news, fixed color filters really do create problems with
>astronomical imaging. A monochome version fixes some of the objections
>I had against the DSI. The increase of sensitivity would be correct for
>getting rid of the on chip color filters. The 16bit specification is
>really a bit of marketing fluff, with a Sony CCD they are really getting
>about 13bits at best, unless binning, then they could theoretically get
>14bits, it could be much less depending on which CCD they use from the
>Sony line. You can't bin with the color version and still get color,
>you get a poor sensitivity monochrome.
>
>Andrew
>
>Jeff Hopkins wrote:
>
>>It looks like Meade has come out with a monochrome version of there
>>DSI. This will be great for photometry, spectroscopy and for
>>producing better images. The y claim 2.3 time more sensitivity and 4
>>times the resolution of the Color DSI. The price is $399 and an RGB
>>color slide is available for $199 or the combination for $499. That's
>>the best price I've seen for a 16 bit monochrome CCD.
>>
>>Check http://www.meade.com/dsipro/index.html
>>
>>Jeff
--
Jeff Hopkins
HPO SOFT
http://www.hposoft.com/Astro/astro.html
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