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rumples riot
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Re: DMK takes on Skynyx 2-0
      10/14/07 01:38 AM

One certain factor that I have mentioned and not explained totally is that planets like Jupiter you can only really image for 35-40 seconds per channel (sometimes more like Bird does); rotational issues come into play and so with such a short time you can only really get a limited number of frames in poor to above average seeing. Maybe a 1500 frames if you are imaging at 7000mm and 1000 frames if you have a 14" (at 12000mm +) per channel (this is for a fully exposed histogram). Of which you would use maybe 4-700 frames depending on the seeing conditions. Most commonly around 400 frames. This really is not enough frames to use on the DMK and Jupiter. You really need 550+ frames for a really smooth image to start with. Bird I think uses something like 1200 frames + in really good seeing. (I don't get that sort of seeing consistently)
Now planets like Mars which rotate at a similar rate to earth can be imaged for much longer. You can image for a total of 4-5minutes worth of data. This means that you will easily in average seeing conditions get 7-800 frames per channel to stack out of runs over 2-3000 frames taken per channel.

With this amount of frames you cannot help getting great results from the DMK on Mars. Aside from the fact that we have not considered the guys individual talents in processing.

However, generally the more frames you can get the better the image. And; the more frames that are clean of distortions the larger you can resample from a 12000mm standard fl. A good example is Anthony's images this year in great conditions he can resample a lot to attain the massive image scale. Damian Peach's images this year are larger still and show fantastic detail (he uses a skynyx too)

Now on top of all this is that each image contains more data because of the well depth of the pixels. The deeper the well the better the images. So when you combine this with lower noise, more frames andwell depth you get great images.

Like I said the DMK is good but the Skynyx and the Dragonfly express are better again. The images from Damian, Bird show that is the case. And I really think that Jupiter would be a better test comparison given the short duration of exposure.

Did I explain that well?

Paul

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Subject Posted by Posted on
* DMK takes on Skynyx 2-0 Lunatiki 10/10/07 08:31 PM
. * Re: DMK takes on Skynyx 2-0 Ron B[ee]   10/10/07 10:19 PM
. * Re: DMK takes on Skynyx 2-0 Lunatiki   10/10/07 11:31 PM
. * Re: DMK takes on Skynyx 2-0 wes   10/10/07 11:24 PM
. * Re: DMK takes on Skynyx 2-0 Ron B[ee]   10/10/07 11:38 PM
. * Re: DMK takes on Skynyx 2-0 Bird   10/11/07 02:07 AM
. * Re: DMK takes on Skynyx 2-0 Dobermann   10/11/07 09:02 AM
. * Re: DMK takes on Skynyx 2-0 iceman   10/11/07 04:25 PM
. * Re: DMK takes on Skynyx 2-0 jonbosley   10/11/07 05:00 PM
. * Re: DMK takes on Skynyx 2-0 rumples riot   10/11/07 06:16 PM
. * Re: DMK takes on Skynyx 2-0 Lunatiki   10/11/07 06:30 PM
. * Re: DMK takes on Skynyx 2-0 rumples riot   10/11/07 06:39 PM
. * Re: DMK takes on Skynyx 2-0 Gendo   10/13/07 02:29 PM
. * Re: DMK takes on Skynyx 2-0 iceman   10/11/07 07:00 PM
. * Re: DMK takes on Skynyx 2-0 Bird   10/12/07 01:22 AM
. * Re: DMK takes on Skynyx 2-0 davidpretorius   10/12/07 06:51 AM
. * Re: DMK takes on Skynyx 2-0 Lunatiki   10/13/07 03:04 PM
. * Re: DMK takes on Skynyx 2-0 Gendo   10/13/07 07:11 PM
. * Re: DMK takes on Skynyx 2-0 rumples riot   10/13/07 09:30 PM
. * Re: DMK takes on Skynyx 2-0 Lunatiki   10/13/07 09:39 PM
. * Re: DMK takes on Skynyx 2-0 rumples riot   10/14/07 01:38 AM
. * Re: DMK takes on Skynyx 2-0 Bird   10/18/07 05:08 AM
. * Re: DMK takes on Skynyx 2-0 Alan Friedman   10/18/07 10:50 PM
. * Re: DMK takes on Skynyx 2-0 swalker   10/20/07 06:56 PM
. * Re: DMK takes on Skynyx 2-0 Lunatiki   10/14/07 02:10 AM
. * Re: DMK takes on Skynyx 2-0 gazerjim   10/14/07 03:52 AM
. * Re: DMK takes on Skynyx 2-0 David Rivas   10/14/07 01:45 PM
. * Re: DMK takes on Skynyx 2-0 davidpretorius   10/18/07 04:46 AM
. * Re: DMK takes on Skynyx 2-0 gazerjim   10/14/07 12:37 AM
. * Re: DMK takes on Skynyx 2-0 iceman   10/11/07 06:25 PM
. * Re: DMK takes on Skynyx 2-0 novbabies   10/11/07 05:12 AM
. * Re: DMK takes on Skynyx 2-0 Sean McDaniel   10/10/07 09:09 PM
. * Re: DMK takes on Skynyx 2-0 Lunatiki   10/10/07 09:22 PM
. * Re: DMK takes on Skynyx 2-0 Sean McDaniel   10/10/07 09:32 PM
. * Re: DMK takes on Skynyx 2-0 Lunatiki   10/10/07 09:35 PM
. * Re: DMK takes on Skynyx 2-0 Sean McDaniel   10/10/07 09:47 PM
. * Re: DMK takes on Skynyx 2-0 Lunatiki   10/10/07 09:57 PM

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