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  1. #11
    kwalker's Avatar
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    Very nice imaging indeed.
    I don't know how you manage to stay awake for all the hours that it took to accomplish such a stunning image.
    you've got almost 10 years on me and I cant hold my eyes open past 2:00 AM without at least 10 cups of coffee in me
    Maybe you shouldn't sell the C11 quite yet.
    Ken

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  2. #12
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    Wow! That's as good as a Hubble image!

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  3. #13
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    Had to come back for nother look, again and again....

    Fantastic job! What can you tell us about this Flea3? Never heard of it...

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  4. #14
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    Amazing image! I see you have the fl listed as f29 - were you using a sub-aperture mask on the scope?
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  5. #15
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    Thank you also Kevin, Keith, Ken, Jeff and Astroval.....the sleep thing does get to us a bit - us being my partner of 41 years: she's my co-pilot at the laptop and is essential company sitting out in the bush on starry nights.....that's why she allways gets acknowledged in the image caption!

    I've jokingly told her that I might have to cut back her wages with the use of FireCapture v1.2 as it makes everything pretty automatic once you've set up all the individual channel capture settings.....changing channels during a recording is now merely hitting the next filter colour tab on the display widow, pressing the FireCap start button again etc.....I use a Moonlite hi-res focuser with DRO box and just hit it once to drop the setting back from green to blue (blue filter focuses are roughly 20 microns inwards from the other 2 channels, even though the Astronomiks filters are touted as "parfocal"...)

    Point Grey Research (PGR) are a Canadian company based in Vancouver manufacturing cameras mainly for security and industrial production monitoring etc.....the Flea3 is a very small cubic device just over 1"x1"x1" in dimensions with a Sony ICX618 ccd sensor and uses FireWire 800 connections for its fast data transfer.....many folks consider them to be the current top-performing video cam for planetary imaging at reasonable cost (although I can appreciate a lot of folks wouldn't think $900 Australian terribly "reasonable")

    It has a very sensitive ccd unit and can normally take videos (avi's, fits, tifs, sers or bmps) with framerates up to 70fps - but you can go much higher with certain settings.....

    FireCapture is a freeware program written by an AA enthusiast Torsten Edelmann and it can operate a number of different camera types - us users are pretty indebted to his hard work in creating and upgrading this program..!

    The C11 is an f10 scope (SCT) and you never want to "mask down" something for planetary imaging.....barlows are used along with an extension tube between the barlow and the actual camera to increase "image scale" which is directly related to focal length (ie, the planet's size for capturing images)...and of course with mono imaging cams a filter wheel with various filters is also in the imaging train - I use a relatively inexpensive "Orion Nautilus" electric filter wheel which operates through simpe software on the same laptop I have FireCapture loaded for capturing the avi's.....

    Using extension tubes increases the "power" of the barlow to make a 2x unit perform as anything up to (say) 3.5 to 4X.....thus a 2x barlow becomes (say) a 2.9x device and my scope's capability goes from f10 to f29.....

    Whilst the C11 has been a great workhorse over the 2 years I've owned it (and I've also carried out major modifications to it such as active cooling and monitoring of the primary mirror to negate the effects of the mirror being at a higher temperature than the ambient air temps) it will be a big leap forwards for me getting the Orion Optics (UK) VX16, a 16" newtonian scope only weighing 29kgms and 158cm long OTA.....the optics figured to 1/10 pv (1/50RMS) certified as such with interferometer analysis.....and as such will not only be optically-engineered superior to my C11 but also possess over 200% of the C11's light-gathering capability!

    So you'll appreciate my looking forwards to its expected delivery within the next month or so.....and of course hoping for good skies..!

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    DaltonSkyGazer (04-27-2011),kbeverage (04-27-2011),kwalker (04-27-2011)

  7. #16
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    Thanks for the explanation; so that means that running my webcam with a 2x barlow on my f10 system I've actually been running at an effective f20 without even realizing it

    I've looked at the Flea3 a couple of times as I see it mentioned more and more, but it's just a bit out of my price bracket for now. Perhaps someday...

    Keep up the great work!
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  8. #17
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    Very deep detail, thanks for sharing.

    Best

    JG
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  9. #18
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    Quote Originally Posted by kbeverage View Post
    Thanks for the explanation; so that means that running my webcam with a 2x barlow on my f10 system I've actually been running at an effective f20 without even realizing it

    I've looked at the Flea3 a couple of times as I see it mentioned more and more, but it's just a bit out of my price bracket for now. Perhaps someday...

    Keep up the great work!
    Thanks JG..!

    That's correct Kevin.....image scale (the size the planet appears at onscreen) is directly proportional to f/l (focal length) so that if you use a barlow to turn your scope into an f20 from an f10 you'l get the larger scale: remembering that even a (say) 30" f10 scope will only produce the same image scale as a much smaller scope that is still f10.....but of course you will find that the big scope can have its f/l increased dramatically more (and thus get bigger scales) than the smaller one by virtue of its far greater light-gathering capabilities.....and will show that same object much better even when both scopes are operated at f10.....all other things being equal...

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  11. #19
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    great image, very impressive!!! congratulations!!

    regards
    Antonio
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  12. #20
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    Thank you very much for your kind words Antonio..!

 

 
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