Moon photo with D70

Discussion in 'Digital SLR' started by Cynicor, Dec 12, 2005.

  1. Cynicor

    Cynicor Guest

    A poster sent me mail asking how I took this shot and made it not

    I took the photo at ISO 800, 1/80. I was finding that it took several
    seconds for the shutter vibration to die down because the D70 has no
    mirror lock-up. (The Meade ETX125 is about 1900mm, f/15.) Instead of
    taking longer exposures that showed motion blur, I tried to get one that
    would be almost fast enough to minimize vibration. I set the camera to
    do continuous shooting, hoping that I could remove any button press
    shake with the second or third image. Unlike with long-exposures of
    stars, night scenes, etc., I couldn't wait a few seconds for the shake
    to stop and then remove a card from the front of the telescope.

    At ISO 800, I got quite a bit of noise, so I ran the image through Neat
    Image to clean it up. Other people have mentioned stacking 10 or 20 of
    the same shot to come up with something crisper.

    Or, I could just get a camera with MLU.
    Cynicor, Dec 12, 2005
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  2. Cynicor

    G.T. Guest

    I don't have the exposure details with me at the moment but this was
    probably 1/250 at ISO 400:

    My first, considerably blurier, attempt on a shaky Celestron CG-4 mount
    and 750mm focal length reflector, f/5. I can't remember if I had mirror
    lockup enabled or not. Not much noise, though, I did no noise processing.

    G.T., Dec 12, 2005
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  3. Cynicor

    Pete D Guest

    Here is one from my Pentax Ds and Sigma 70-300mm lens.
    Pete D, Dec 12, 2005
  4. Cynicor

    Tim Duke Guest

    Other people have mentioned stacking 10 or 20 of the same shot to come up
    Hi, do a search for 'Registax'. It's a freebie bit of astro software that
    allows you to stack images together. It will align and stack them
    automatically, and you can even have it choose the best quality images to
    use !

    Tim Duke, Dec 12, 2005
  5. Cynicor

    Guns/Zen4 Guest

    Anyone notice that it's upside down?
    (look at his location...LOL).

    I'm impressed. I can't get anywhere near as good a shot around here
    (Toronto), what with all the light pollution.
    Guns/Zen4, Dec 12, 2005
  6. Cynicor

    Pete D Guest

    LOL, must have twisted heading over on the big fat Pan Pacific fibre (note
    correct spelling).
    Pete D, Dec 13, 2005
  7. Cynicor

    RichA Guest

    Light pollution has no effect on shots of the Moon or planets. They
    are bright enough so
    they aren't drowned out like "deep sky" objects. What does degrade
    images of planets
    and the Moon are things like heat being released at night from
    buildings and paved roads.
    Also, an unsteady atmosphere (causes stars to twinkle) further degrade
    That's why solar system objects show the most detail (the images are
    most steady)
    if you can avoid these sources of degradation. Places like Florida
    offer very good "seeing conditions" and they allow people to take
    excellent images. In Toronto seeing is generally
    moderate to poor, with good nights occuring mostly on damp summer
    nights when the atmosphere is steady.
    RichA, Dec 15, 2005
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