Contains:  Solar system body or event
Sun 8/6/2016, Antonio.Spinoza

Sun 8/6/2016

Sun 8/6/2016, Antonio.Spinoza

Sun 8/6/2016

Equipment

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Acquisition details

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Description

I'm having trouble with banding patterns in the ASI174MM camera when I use a Barlow lens. Following advice in Cloudy Nights, I'll be looking into getting a tilt adjuster, but in the meantime, I just tried creating a grayscale "flat" of the main body of the sun in Photoshop by cloning out the brightest regions, applying a wide median noise reduction, Gaussian blur and levels adjustment, then subtracting the blurred grayscale from the main image of the body of the sun. This appears to work reasonably well for reducing the banding pattern.

Comments

Revisions

  • Sun 8/6/2016, Antonio.Spinoza
    Original
  • Final
    Sun 8/6/2016, Antonio.Spinoza
    B

Histogram

Sun 8/6/2016, Antonio.Spinoza