74% Full Moon from Tonight (April 14/15)

Discussion in 'Nature & Wildlife' started by astrostu, Apr 15, 2008.

  1. astrostu

    astrostu Guest

    I think this came out well in terms of no blown-out highlights. The posted version is 10% of the original size.

    [​IMG]
     
  2. bla

    bla TPF Noob!

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    Wow. How?
     
  3. Robstar1619

    Robstar1619 TPF Noob!

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    Wow indeed...how did you get so close up of the moon.
     
  4. Mathias13

    Mathias13 TPF Noob!

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    me three...first word was 'wow'..nicely captured
     
  5. Renair

    Renair TPF Noob!

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    Turned out well indeed, was that taken with your 500-1000mm lens?
     
  6. Antarctican

    Antarctican TPF Noob!

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    Jaw dropping stuff, to get such detail. :hail:
     
  7. astrostu

    astrostu Guest

    Thanks for the compliments. Here're the basic steps I used:

    Equipment
    - dSLR camera
    - really big lens (4.877 m focal length, 0.61 m aperture (f/8))

    Camera Settings
    - 1/60th sec
    - remote control


    Steps

    (1) Takin' lots of pictures, since at that focal length, I have a field of view much smaller than the moon's size.

    (2) Set all the RAW pictures to the same color/brightness settings in Adobe Camera RAW, exporting as 16-bit TIF files.

    (3) Use AutopanoPro to stitch the 23 photos together, again in 16-bit and saving as uncompressed TIF.

    (4) Bringing the output into Photoshop. Desaturate. Scale down in size to something standard (in this case, the moon being 100" in diameter). Convert to a Smart Layer. Adjust levels and curves non-destructively. Add an Unsharp Mask smart filter, in this case a 150% filter at 7.5 px (since my seeing was worse than 1 arcsec, otherwise the filter should've been at 4 px (see below)).

    (5) Flatten and shrink in size. Keep in mind that the best seeing on Earth from a reasonable site is about 1 arcsec. Since the moon is 30 arcmin in diameter, then the highest resolution you can expect where each pixel contains unique information is 1800 px in diameter vs the 7200 that I was editing it at. In this case, I saved the final JPG to post with the moon being 720 px across for purposes of posting here.
     
  8. EricBrian

    EricBrian TPF Noob!

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    You stitched this image together? Wow. So very nice.
     
  9. mdcrisp2000

    mdcrisp2000 TPF Noob!

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    That flew straight over my head, but it's an awesome shot nonetheless. Astonishing detail.

    And also, 4.877 m focal length? Some kind of telescope, I can only presume...
     
  10. Coldow91

    Coldow91 TPF Noob!

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    can we get a picture of that lens?
     
  11. Sim

    Sim TPF Noob!

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    Unbelievable detail. Not to sound like a broken record, but wow.
     
  12. astrostu

    astrostu Guest

    I don't have a picture on-hand, but here's an old one I found that someone else took (university, in public domain, etc., so I'm including it below instead of as a link).

    [​IMG]
     

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camera settings for tonights moon april 14 2014