FreeLists / az-observing / [AZ-Observing] Re: Monochrome Meade DSI

[Jeff Hopkins <phxjeff@xxxxxxxxxxx>]

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

*********************************************************
  Small minds speak about people * Average minds speak of events
************   Great minds speak of ideas!    ****************
*********************************************************
                     Hopkins Phoenix Observatory
                       7812 West Clayton Drive
                   Phoenix, Arizona 85033-2439 U.S.A.
                                www.hposoft.com
--
See message header for info on list archives or unsubscribing, and please 
send personal replies to the author, not the list.