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Last evening, David Y set up the Canon 5D4 on the big scope, and we managed to get SharpCap to do live-stacking of the captures from the Canon.
What is live stacking? As each image is captured to a folder on the computer, SharpCap analyses the image to find the major stars, then it aligns the image with the previous images and averages the images together. This process reduces the noise in the image, and allows the fainter parts of the image to come forth. SharpCap also makes it easy to adjust the histogram to pull up darker parts of the image.
Last night we did some quick tests with the Orion Nebula. Attached are two images. The first image is straight off the camera, un-stacked. It's a 15 second exposure, as I recall.
The second image is from SharpCap, after stacking 17 consecutive 15-second shots. You can see the additional detail in the stacked image.
David Y thinks it might be possible to use this process to drive a large display to show the public on nights when Powell is back open. More experiments underway!
David McCallie
What is live stacking? As each image is captured to a folder on the computer, SharpCap analyses the image to find the major stars, then it aligns the image with the previous images and averages the images together. This process reduces the noise in the image, and allows the fainter parts of the image to come forth. SharpCap also makes it easy to adjust the histogram to pull up darker parts of the image.
Last night we did some quick tests with the Orion Nebula. Attached are two images. The first image is straight off the camera, un-stacked. It's a 15 second exposure, as I recall.
The second image is from SharpCap, after stacking 17 consecutive 15-second shots. You can see the additional detail in the stacked image.
David Y thinks it might be possible to use this process to drive a large display to show the public on nights when Powell is back open. More experiments underway!
David McCallie
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