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  1. #1

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    Ok, how's this, Pinhole Telescope?


  2. #2
    Marco B's Avatar
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    Well, time to shoot my Zero Image 4x5 pinhole into space... it has a rotating disk with besides three pinholes, also three fresnel / zone plate "lenses"...

    See if I can capture some aliens!...

  3. #3

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    Hmm, sounds like it may just compete

  4. #4
    Michel Hardy-Vallée's Avatar
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    I would rather say "Zone Plate Telescope"
    Using film since before it was hip.


    "One of the most singular characters of the hyposulphites, is the property their solutions possess of dissolving muriate of silver and retaining it in considerable quantity in permanent solution" — Sir John Frederick William Herschel, "On the Hyposulphurous Acid and its Compounds." The Edinburgh Philosophical Journal, Vol. 1 (8 Jan. 1819): 8-29. p. 11

    My APUG Portfolio

  5. #5
    keithwms's Avatar
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    I was contemplating a pinhole for deep UV shots into the sun. Problem is that the bloody atmosphere probaby blocks the deep UV, and I don't yet have a spacecraft.
    "Only dead fish follow the stream"

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  6. #6

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    Quote Originally Posted by keithwms View Post
    I was contemplating a pinhole for deep UV shots into the sun. Problem is that the bloody atmosphere probaby blocks the deep UV, and I don't yet have a spacecraft.
    Don't worry - several stages in a high power model rocket carrying "P motors" ought to get you into orbit.

    http://youtube.com/watch?v=XsyeHL--hJ4&feature=related
    http://youtube.com/watch?v=OZ2v48CoLqY
    The universe is a haunted house. -Coil
    .

  7. #7
    glbeas's Avatar
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    Xray telescopes use zone plate technology to focus the images so this is nothing new to astronomy. The newness of it is the wavelength involved in the imaging.
    Gary Beasley

  8. #8

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    Cool, just seemed like something that might be of interest here



 

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