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<blockquote data-quote="BF Hammer" data-source="post: 823646" data-attributes="member: 48483">I do not think your D7000 is to blame. Until 5 years ago I was using a D7000 and Sigma 150-600mm lens for my astro work.I do not have a Star Adventurer 2i. I use Skywatcher's AZ-GTi and that uses the SynScan app to control it. Is that used with the Star Adventurer 2? I don't actually know. But I do know that I do not trust the SNAP port. It has let me down early and I never tried it again with updates on firmware and app revisions.I mostly use a laptop PC to control my camera tethered with DigiCamControl. But you are trying to gather 6 hours of light data. Buy one of the Neweer intervalometers that connects to your remote shutter port. They cost a whole $35 on average and are worth every cent. They have a function where you can put the camera in bulb mode and set long shutter speed interval programs. And the device will be a remote shutter release button for normal photography also. They work.And unrelated, I looked at the exif and it also appears you are capturing a galaxy. Andromeda? Go higher on the ISO. 3200 or 6400 maybe. It will give the benefit of requiring fewer exposures. The noise will blend out fine after stacking.</blockquote>

[QUOTE="BF Hammer, post: 823646, member: 48483"] I do not think your D7000 is to blame. Until 5 years ago I was using a D7000 and Sigma 150-600mm lens for my astro work. I do not have a Star Adventurer 2i. I use Skywatcher's AZ-GTi and that uses the SynScan app to control it. Is that used with the Star Adventurer 2? I don't actually know. But I do know that I do not trust the SNAP port. It has let me down early and I never tried it again with updates on firmware and app revisions. I mostly use a laptop PC to control my camera tethered with DigiCamControl. But you are trying to gather 6 hours of light data. Buy one of the Neweer intervalometers that connects to your remote shutter port. They cost a whole $35 on average and are worth every cent. They have a function where you can put the camera in bulb mode and set long shutter speed interval programs. And the device will be a remote shutter release button for normal photography also. They work. And unrelated, I looked at the exif and it also appears you are capturing a galaxy. Andromeda? Go higher on the ISO. 3200 or 6400 maybe. It will give the benefit of requiring fewer exposures. The noise will blend out fine after stacking. [/QUOTE]

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