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Narrowband

Collin

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  1. Hello all. Thank heavens for this thread ! I was just about to pull the trigger on one of these with 1/10th glass. To say I'm uneasy would be this years' understatement. Think I'll just keep saving up 🙂 Thanks ALL Collin
  2. Hi, Happy New Year everyone 🙂 Episode 41 had Ivo Jager's talk/presentation on StarTools. For the event Ivo used data from somewhere - think it may have been supplied by someone at FLO. I'd have to watch again to be sure. The data were very clean and Ivo didn't have to work massively hard to process it. It was very briefly discussed that Ivo could do a follow-up presentation - but this time using somewhat poorer data to give us an idea of how the software would cope, also giving greater insight as to how the toolset could be manipulated. I'd really like to see this. Regards Collin
  3. Hi, you may already be planning to discuss this with your audience: I remember the first galaxy I viewed through a telescope and being mildly disappointed that I couldn't see it in colour 2 minutes on the difference between the human eye and a camera might be useful. Depending on where you talk about it in your timeline, you can use it or refer back to it as you segway into the "image processing" section ? Then you can really wow them when they see your dull grey image get transformed Just a thought, Collin
  4. Hello all. I was a visual-only observer about 20 years ago. Gave away what little I had because a) I'd outgrown it anyway and b) I wanted to stop a relative from buying something that would have destroyed his interest in the subject. Y'know, a magnifying glass on a twig. Then of course, life got in the way and I'm only returning to astronomy now. This time I intend to image if you're still reading - thanks Anyway, I'm struggling with something. I'm building my system slowly but seem to have gotten a bit stuck finding a reducer/flattener for my scope An Explore Scientific ED102 with a 2" unmodified focuser. Not hexafocus or crayford - just stock. I'm trying to make the image train as square and rigid s possible, so I'm trying to find a reducer/flattener that can be screwed at both interfaces. I don't know if such a thing exists - what hinders me greatly is that I don't know all the relevant thread sizes and I don't know what you can and can't do. (Seems there's quite lot I don't know) I'm looking for either a 0.7 or 0.8 reducer/flattener. Then my biggest question will relate to precisely where in the image train to put it (I suspect the dreaded Youtube will tell me that) Behind it I intend to put the ZWO OAG, an ASI294 and an ASI290 mini for guiding. If anyone has the time to give me some pointers, I'd be very grateful. Regards, Collin
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