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Forum: Photographic Technique
04-11-2016, 09:14 AM
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I think you've done pretty well. You can adjust the white balance to give the sky a more bluish cast before you shoot and there are a number of videos on Youtube that demonstrate how to post process the Milky Way. Just do a search for that term.
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Forum: Photographic Technique
11-09-2015, 08:32 AM
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Once you get your focusing issues resolved, you also have camera movement during the exposures. All of the stars appear twice and the wires in the second image look like there are two of each wire. That is caused by the camera moving during the exposure. "I don't know why I get startrails (sort of, they just look like blurry stars) every time because I am not holding shutter open for very long." Are you holding the shutter release button during the exposure? If the camera is touched during the exposure, it will shake the camera. Set the camera for the desired exposure length (you mentioned 8 seconds) and trigger the shutter with a remote. If you don't have a remote release set the camera for a two second delay, press the shutter release button and don't touch the camera again until the exposure is complete. Be sure you aren't touching the tripod, either...feet, clothing, etc. Stabilizing the tripod might also help. (a breeze can shake the camera.) Simply fill an old milk jug with water and place it on the ground under the tripod and then use a bungee cord or some heavy string to tie the tripod to the milk jug.
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Forum: Photographic Technique
08-15-2015, 12:55 PM
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The second image doesn't show trailing but it is out of focus. Try using live view to focus on the moon some night to determine infinity focus for each lens. Reduce the lens aperture a couple of clicks to sharpen up a little more. The longer exposures possible with the Astrotracer will compensate for the loss of light. Your first image shows some trailing as well as out of focus. Because of that difference, I wonder if the problem is camera shake. Bumping the tripod or the camera on a weak tripod in a wind gust, etc could cause what appears to be star trails. Any camera movement will defeat the Astrotracer.
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