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Forum: Photographic Technique
01-02-2016, 07:28 PM
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It's hard to tell from your photo as posted but instead of trails, could that actually be from slight movement of the setup? Perhaps from the mirror? Perhaps use a different lens and no astrotracer and just try for some crisp shots of stars to make sure everything else is good. Basically removing variables to help pinpoint the root cause of the issue(s). I guess another good question would be to ask if you were getting similar "trails" in the 30, 20 and 10 second images of if the trails were definitely longer on the longer exposures as you might expect.
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Forum: Photographic Technique
11-12-2015, 08:23 AM
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How about taking some shots during the day and posting them. If they come out alright, focus on things you are doing differently at night that may be causing the issue.
Also, as I asked before, you never mentioned if you were truly using Astrotracer or just taking night photos.
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Forum: Photographic Technique
11-08-2015, 01:42 PM
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As Adam said, it looks like you are way out of focus and don't have a solid tripod. In the above image I can see 3-4 iterations of each star. It looks like the tripod head could be dipping as the exposure is going since the "trails" are moving down.
Also, I notice you said 24mm but your EXIF shows 35mm. Not that it matters that much but I was just curious. I believe you should be able to switch to manual focus mode and use the focus ring on the lens to focus to infinity. Be aware that it may not be exactly where it "stops" and could be slightly before that point. Just take some quicker, higher ISO photos to check for better focus. Once you have focus figured out, you can then address the tripod stabilization.
One other thing, this thread is about using Astrotracer but I don't know that I've seen you mention whether you are using Astrotracer or not. If you are, your foreground images will be blurry as the camera's sensor is moving to follow the stars. If you aren't using the Astrotracer, work on the focus and solid mounting and see where that gets you. It might be worth starting a different thread as well since again, this thread is more about using/troubleshooting Astrotracer.
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