HowardHopkinson
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Everything posted by HowardHopkinson
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Well, trying to charge the battery with the supplied charger was a no go. So, I'm currently pulse charging the battery via a smart charger and hopefully that'll work. How long do you think it will take to repair the battery via the pulse charge? -
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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Photos taken with my Explore Scientific ED 80 APO Triplet telescope and my Canon 60D
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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
M31 the Andromeda galaxy reprocessed. 90x90sec light frames at ISO 1600, 29 dark frames, 25 flat frames and 50 bias frames stacked in DSS and processed in PS. -
From the album: Astrophotography 2
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With what seems like weeks of cloudy nights even when it's supposed to be clear, I decided to reprocess my photo of M45 the Pleiades star cluster. -
From the album: Astrophotography 2
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From the album: Astrophotography 2
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Thank you Seanelly. -
Thank you Seanelly. -
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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Thanks for your comment Craney, it's very much appreciated.
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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 black dot is almost certainly debris in your image train. A careful but deep clean is the only way to get rid of it. It runs in my mind that on the day you took your image, the solar disk was devoid of any sunspots. -
I use a Seymour type 2 glass filter that I purchased from Rother Valley Optics. https://www.rothervalleyoptics.co.uk/seymour-solar-sf525-525-type-2-glass-solar-filter.html
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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
