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Thread: Moon and Mars on 27th August.

  1. #21

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    No moon or mars today ...

  2. #22

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    Quote Originally Posted by Starman
    I used 667x (167X on the scope and 4X optical Zoom on the camera)
    Hi Starman,

    Nice picture!

    How do you interface the telescope and the camera. I am planning to get a telescope and hope to use my Canon D30 to take some pictures.

    How much does a 167X telescope (the one you are using) cost? I am just trying to get an idea of the costs. Please check your PM too.

    Thanks.
    NV

  3. #23

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    Remember to catch the mars this evening at 1851hours. It's the nearest of all time.

  4. #24
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    The cost of a telescope depends much more on the aperature (diameter of the telescope main mirror or lens) and the mount than the magnification. You can change the magnification just by changing the eyepiece (or use a barrow lens). You get have 167x on both a 90mm and a 200mm aperature telescope, but there is a huge difference in terms of quality or usability.

    That said, a 200mm scope (8in) like that used for the photo goes for about $2000-4000 depending on the coating and the mount and excluding shipping. Almost 1/2 of that cost goes into the mount.

  5. #25

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    Quote Originally Posted by N V Rao
    Hi Starman,

    Nice picture!

    How do you interface the telescope and the camera. I am planning to get a telescope and hope to use my Canon D30 to take some pictures.

    How much does a 167X telescope (the one you are using) cost? I am just trying to get an idea of the costs. Please check your PM too.

    Thanks.
    NV
    I have replied your PM, but for the benefit of others wanting the know the attachment, here is the link:

    http://203.81.46.206/images/test/lxd55.htm

  6. #26

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    OMG... u mean that little black toy attached to the end of the scope is a camera?? I didn't see it at first!

    Looks like I can forget about bringing the 200mm + 2x TC...

  7. #27

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    Quote Originally Posted by Starman
    I have replied your PM, but for the benefit of others wanting the know the attachment, here is the link:

    http://203.81.46.206/images/test/lxd55.htm

    Awesome!

  8. #28
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    Quote Originally Posted by Starman
    I have replied your PM, but for the benefit of others wanting the know the attachment, here is the link:

    http://203.81.46.206/images/test/lxd55.htm
    O gosh........

    I think this must be the most full featured 8" I have seen.......
    Frankly it looks more like a 10"

    Er Starman,

    Can you take the hood off and stop scaring the kids......

    Jokes aside, some questions here :

    Are you using a SCT 2" Diagonal?
    The 2" item shown on the last pix, is it a tele-extender or a eyepiece with integrated T-mount?
    You use a 2x TC right?

  9. #29

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    WoW! ok guys... no need to wake up early tom
    San Francisco Bay Area California Wedding Photographer
    www.thisisitphotograpy.com

  10. #30
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    Quote Originally Posted by es0teric
    Remember to catch the mars this evening at 1851hours. It's the nearest of all time.
    Er, I think Mar haven't rise at 1851 right?

    BTW, what was the huge pic that you posted and what was it taken with? Doesn't look like either Mars or Moon to me.

  11. #31

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    Quote Originally Posted by willyfoo
    OMG... u mean that little black toy attached to the end of the scope is a camera?? I didn't see it at first!
    err, did you scroll down the page? it should be quite obvious....

  12. #32

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    Quote Originally Posted by frisky
    Er, I think Mar haven't rise at 1851 right?

    BTW, what was the huge pic that you posted and what was it taken with? Doesn't look like either Mars or Moon to me.
    I think he got a friend working in NASA. The image was created from over 100 images of Mars taken by Viking Orbitters in 1970s.

  13. #33

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    Quote Originally Posted by frisky
    O gosh........

    I think this must be the most full featured 8" I have seen.......
    Frankly it looks more like a 10"

    Er Starman,

    Can you take the hood off and stop scaring the kids......

    Jokes aside, some questions here :

    Are you using a SCT 2" Diagonal?
    The 2" item shown on the last pix, is it a tele-extender or a eyepiece with integrated T-mount?
    You use a 2x TC right?
    Haha..about the hood. Well, actually it is to show how I focus using the 10D. See the hood has three triangles? When we point the scope at a bright star, we should see three stars in triangular shape due to the mask. Then we use the telescope focuser to focus till the "three star" merge together as one. When that happens we know it is accurately focus.

    Yes, that is a 2" SCT diagonal. The 2" item shown is an eyepiece. There is no integrated T-mount. Coincidentally the 10D fits perfectly onto this eyepiece without any T-mount so we just use a bracket to hold the camera by clamping onto the eyepiece. Can be seen in the pics.

    2X TC? No, we didn't use that. The eyepiece is a 30mm, so on this scope, it gives 2000/30 = 67X. Not enough mag. for planets, but good enough for moon and far too much mag. for deep sky. For deep sky (like the Orion nebula that I shot shown on other threads), we need to use a focal reducer to reduce the focal length of the scope. We reduce it to 1260mm, so the mag is 1260/30 = 42X, which is pretty good for deep sky.

    For planets, I will use a Coolpix 4500, which allows 4X optical zoom to bring the magnification up further. The eyepiece will not be this one , but a 24mm + 2X barlow, giving an effective 167X. With 4X optical zoom, it will be 668X.

    Hope this explains.

    By the way, here is the picture of my scope after working hard the whole night at dawn. A bright object behind is the moon

    Last edited by Starman; 27th August 2003 at 04:14 PM.

  14. #34
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    anybody saw anything right now?

  15. #35
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    Quote Originally Posted by KCBox
    anybody saw anything right now?
    It is out there right now...... and solid sky to boot......

    Go, run out to see......

  16. #36
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    Quote Originally Posted by frisky
    It is out there right now...... and solid sky to boot......

    Go, run out to see......
    i saw little spot on my west area...

  17. #37

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    Quote Originally Posted by frisky
    It is out there right now...... and solid sky to boot......

    Go, run out to see......
    See anything?? Am I able to take any good pic of the mars just with A70? If not, I'll just go out and take the pic using my superb eyes and store it in my hi-speed brain

  18. #38
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    Quote Originally Posted by KCBox
    i saw little spot on my west area...
    Afraid that is about all you can see. I am watching with a small telescope with 33x, still a tiny dot........

    You wanna see bigger need something like starman's scope......

  19. #39
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    Will wait unit after 22:00 hrs. If there is luck.

  20. #40

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    Quote Originally Posted by KCBox
    Will wait unit after 22:00 hrs. If there is luck.
    hmm.. saw a bright spot on the sky now but dunno whether it's a star or not

    maybe it's just a satellite

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