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About MaJiC79

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    Software Engineering, Hardware Hacking, 3D Printing, Rallying and Star-Gazing
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    United Kingdom

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  1. As I understand, super keeps that aberration down over a much broader range. I start to question the need unless you are looking outside of the visible spectrum, although it occurs to me that if you shoot narrowband, can you refocus for the band you're shooting in?
  2. I'm the first to admit that I'm not an experienced user (enthusiastic amateur at the best) but I'm trying to learn and keep my mind open. The only stupid questions are the ones that aren't asked - I'll try to keep my questions sensible, and I thank everyone for their input so far. I'm really glad I joined
  3. It sounds like a minefield and I'm glad things have progressed since then
  4. One of the attractions for me is that this is a science - every aspect and adjustment can be measured. Judging a scope on its merits means having some quantification of those merits. That very nice looking scope does publish those merits, and I think when I buy an APO (ED or triplet) I will be looking for that same information so I can make the judgement
  5. I've not come across semi-apo, but I have seen super-apo. I'm wondering how much this can be modeled and measured. Yet another project (black hole) I may dive into
  6. Thanks, that's a really interesting article - it's a lot more detailed than I was expecting! Ok, so I'm more reassured now than I was. As always, it's buyer beware - so I will need to know a bit more about what I'm buying into before I commit some significant cash into anything
  7. That's the thing, I have read that article (and several related ones) which point to a common Achromatic design using a doublet, and a common Apochromatic design using a triplet. And yes, I know there is more than one way to skin this mouse, and that's the reason for my question. Can an ED doublet truly offer apochromatic colour correction, or is it snake oil marketing?
  8. So I'm perusing astrogear for sale (pick a site, there are many) and I see people listing ED Doublets as Apochromatic. As I understand it, the doublet brings two wavelengths to a common focus, and a triplet converges three. Can an ED doublet really focus three wavelengths?
  9. Resin printers tend to require more post processing and chemicals, but also are usually much higher resolution and somewhat faster to print (it depends on a few factors). The resins are usual more expensive as well.
  10. For a cheap starter package, I don't think you'll beat the Ender 3 V2. I'm not sure if they come with a heat bed or of the box, and only a few materials will let you print on a cold bed (PLA will). There are many upgrades as you become more familiar with it
  11. Fair point about the network - I can see good reason to want to control that specification. You can use a program such as Motion to capture the frames and act as a layer between your USB source and the software
  12. You're running them on your computer with your hardware, why do you need his permission?
  13. Short answer - yes it's possible. A brief look tells me that the monitoring tool is based heavily on standard raspbian. Long answer - you need a long enough USB cable to plug in to, voltage drop on long runs are going to be the issue you face. I don't have details (but I can have a look tomorrow) but once you plug in your USB camera, you will see a device in the system, its then a case of updating the config to use this device instead of the IP device
  14. On the bright side, you don't need to try so hard to cool your imaging sensor down! I've flown into Skavsta airport many times, drove on Swedish roads and paid high prices for 500ml of beer. I quite like Sweden
  15. For more specialist stuff, I use a site called Namrick
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