Mars, finally!

Discussion in 'Landscape & Cityscape' started by pursuer, Oct 21, 2005.

  1. pursuer

    pursuer TPF Noob!

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    I have been trying to get a photo of mars for the last few weeks but the weather hasn't cooperated with me until tonight. The northern (lower) hemisphere can be seen caped with a layer of cloud and some signs of the giant dust storm currently sweeping across the planet can be seen in the southern hemisphere. There also seems to be just a hint of the southern polar ice cap visible at the top, it is going into summer there so the ice cap is currently very small.
    [​IMG]


    The pleiades star cluster
    [​IMG]

    Thanks for looking.
     
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  2. ClarkKent

    ClarkKent TPF Noob!

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    Nice work. You shooting through a telescope?
     
  3. LaFoto

    LaFoto Just Corinna in real life Staff Member Supporting Member

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    Wow, pursuer! All that can be seen from Earth? That is soooo cool!
    All I see is a bright star! Reddish it is, yes, but ... love this detail here! Great! :D.
    Thanks for your determination, it has finally brought about a very nice result! Yay! :thumbsup:
     
  4. seven

    seven TPF Noob!

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    Very cool pictures, without a telescope I can't picture how big the lens would be. :confused:
     
  5. Meysha

    Meysha still being picky Vicky

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    pursuer! Amazing isn't it! all those tiny little planets and stars out there!

    And I've got you to thank for making me feel so tiny and insignificant. :p hehehe thanks!

    Your photos are always amazing and interesting! :hug::
     
  6. doenoe

    doenoe TPF Noob!

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    wow, thats just amazing. Cant believe that you can shoot that from earth. The star cluster is awesome too.
     
  7. PlasticSpanner

    PlasticSpanner TPF Noob!

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    Fantastic detail in the Mars shot! I can make out the blue haze quite clearly and the ice cap is just visible still!:thumbup: Did you take that with film, digital or CCD?
     
  8. pursuer

    pursuer TPF Noob!

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    Thanks alot everyone :)

    I should have posted the details last night but I was pretty tired.

    The first shot was taken through a telescope. The scope has a 10" primary mirror , if I attach my camera directly to the the scope (prime focus) it is the equivalent of a f/4.7 1200mm lens. However that still isn't enough magnification for something as small as Mars so instead I put my camera on a tripod seperate from the telescope and lined it up with an 8mm eyepiece attached to the scope. This combination yeilds a magnification of 147X

    The second shot is a 20sec exposure at f2.8 ISO800, through my f/1.8 50mm, with the camera piggy backed ontop of the scope.
     
  9. pursuer

    pursuer TPF Noob!

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    PlasticSpanner, that was taken with my 300D
     
  10. hobbes28

    hobbes28 Incredible Supporting Member

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    Okay, that's just amazing. You may have me going to the telescope store after all... :D
     
  11. PlasticSpanner

    PlasticSpanner TPF Noob!

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    You could have just said it was an f/4.7 1200mm lens! :lol: :shock:

    Is it possible to use an eyepeice inside the T-Mount adapter for your camera?

    Is there much digital noise at ISO 800?
     
  12. pursuer

    pursuer TPF Noob!

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    True enough, lol.

    No, the way the T-Ring I use for prime focus is setup there is no way to use an eyepiece with it.
    Thats why I was using the awkward setup of having a seperate tripod. There are products available to mount cameras to the end of the EP. This technique is normally refered to as eyepiece projection or afocal photography.

    There is noise at ISO 800 but with with dedicated astrophoto software like pixinsight or even noise reduction software like neat image it isn't significant.
    The noise is even less of a problem if you are going to subtract dark frames and and stack multiple exposures.
     

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