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Everything posted by HowardHopkinson
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I went out last night and setup my gear only to find out my Skywatcher 17AH powertank was dead as a dodo. Apparently I'd accidentally left it switched on and the battery was completely drained. Once I'd stopped cursing and packed up my gear, I tried charging it but the red charging light only came on for a second and went out with an audible click. After many attempts I got it to start charging, however, the green light says it's fully charged and the red charging light only stays on for a few minutes. I hooked it up to my mount after several hours and it powered my Synscan handset, but would not allow me to slew the mount. I have checked the output voltage using my meter and it's showing just over 13 volts output. Is the Power tank beyond repair or should I keep on trying to charge it for a couple of days?
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From the album: Astrophotography 2
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From the album: Astrophotography 2
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Andromeda Galaxy2.jpg
HowardHopkinson commented on HowardHopkinson's gallery image in Member's Album
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From the album: Astrophotography 2
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From the album: Astrophotography 2
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From the album: Astrophotography 2
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From the album: Astrophotography 2
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From the album: Astrophotography 2
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From the album: Astrophotography 2
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Sigma 150-600mm for Deep Sky Widefield ?
HowardHopkinson replied to smr's topic in Getting Started With Imaging
Though I haven't used the exact lens you're thinking of buying, I have used a Sigma 120-400 mm F4.5-5.6 zoom lens with a Canon 60D APS-C camera and gotten some pretty useful results. See below for an example image. -
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From the album: Astrophotography 2
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From the album: Astrophotography 2
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From the album: Astrophotography 2
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From the album: Astrophotography 2
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The Sun taken through my solar filter this morning 22/6/18 at 11.30am. After a couple of weeks with no sunspots visible due to the solar minimum, it's nice to see a couple of sunspot groups. The central group is designated as 2115 and the group upper right is designated as 2013. This is a stack of 28 images stacked in Sequator and processed in Photoshop.
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From the album: Astrophotography 2