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Nikodemuzz

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About Nikodemuzz

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    Finland

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  1. Yes, makes sense! Well explained, thank you. I don't think your math quite checks out (1,25^2=2,5), but I get the point nonetheless. The benefit is there, but it might be a bit smaller. Binning is something I knew I was giving up using the OSC camera, and those compromises were calculated ones. Mono imaging might very well be in my future, but at the moment I'm very happy gathering experience with OSC. During processing I have already noticed things that would be easier and better if I had mono data, and one can't argue against the shortcomings that the Bayer matrix brings. Should I
  2. Thanks for the thorough answer, @vlaiv I would be using a field flattener anyway, at least I think you need one already with APS-C sized sensors. The question then is, without reducing, with reducing, or both? I would argue that at least I don't need both because the FOV difference is quite small. About the speed, I understand what you mean by more of the light from the target hitting single pixels. A drastic example of that would be that the subject is only the size of a single pixel, meaning that all of the light hits that single pixel. I guess my point is, how much does the SNR i
  3. Yeah, it is pretty scary to go near these precision instruments with your own toolset. I wouldn't have had the confidence without clear instructions. I want to say that it's just a few bolts, follow the instructions and you'll be fine. But in the end only you can determine if you want to do it. It could save you the trouble of sending the whole unit for maintenance. On the other hand I'm not sure how easy it is to get spare parts from Celestron.
  4. Continuing a little bit, the easiest way to assess the damage would probably be to head into Chapter 3 in the guide (the RA axis strip down), and there skip to the stage where there are the instructions for removing the worm carrier. If I remember correctly, removing the carrier is a simple job, and let's you see in what state the RA gears are. Edit. You would start from the point where it says "Loosen the upper RA worm carrier set screw."
  5. Ouch, sorry to hear about your mishap! I can very easily imagine that happening to myself. Also, welcome to the forum! From your description it sounds that some of the gears have been damaged. That doesn't necessarily mean that the whole unit is a write off. If you feel up to the task and have some tools lying around, you could follow this guide and disassemble the mount enough to see what has been broken: http://www.astro-baby.com/EQ6 rebuild guide/EQ6 Strip Down Home.htm It is for the EQ6, but the CGEM is essentially the same. I followed the same guide when I tuned and relubricate
  6. Hello all! I have been looking for a refractor in the ~1000mm FL class for some time now (there is a separate thread on the subject). I have sort of taken as a given that I will get a reducer to match the scope. The main benefits that I have thought the reducer would give me are: - 1. Increased field of view, in other words possibility to image more targets. -2. Faster imaging, taking the scope from F7-F8 to F5-F6 territory. I have started to doubt if there is any real benefit for me on either of these points. Let's address point 1 first. The only other scope I have at
  7. That's interesting! Is there a lot of industry or traffic in your area?
  8. In my experience, yes and no. Or, it depends. Sometimes when it is really cold, the lower atmosphere sits very still, contributing to good seeing. It doesn't do much to jet streams, though. Another thing is transparency. At least in our neck of the woods, it is not at all uncommon to have the air filled with small ice crystals when it is cold. They scatter light, making the sky seem a bit foggy and sometimes rendering spectacular halos. Streetlights might shoot up to the sky as long beams. Here is an image (not mine) of the phenomenon: Yet another phenomenon that might hurt the view
  9. Good question. Didn't find an answer with a quick glance with Google.
  10. They are, especially in the northern parts of the country. Where I live (in the middle) we see them only occasionally. They are a pretty sight to see, but for astrophotos they are a nuisance!
  11. While having discussions with different scope providers, I have started to think again about the Esprit 150. Essentially, going back a full circle. Being used to mounting the C11, I don't really have experience in handling bigger refractors. Seeing this video was a bit of a revelation: Silly me, I didn't know you could use the rings like that. Anyhow, seeing that I'm pretty confident that I wouldn't have too much trouble handling an Esprit 150. I believe the CEM60 should also be able to carry it, although it is on the heavier side of its capabilities. The question would
  12. Yeah, no choice if astronomy is your thing here, I'm afraid.
  13. Markus stated that they guarantee their scopes perform until -30C, below which one can expect pinching. Although there are nights when the temperatures do fall below that (just the other night), the vast majority of situations would be OK in that respect. In that sense I would be fine with that.
  14. It is always great to hear your experiences! I think you are right, a vendor more or less has to say something to that effect. I know from my own profession how easily customers take your words as promises and guarantees even though they might have been just educated guesses, so one must err on the safe side. The CEM60 should be able to handle the TSA allright, I think.
  15. There is a lot of truth in your post. It is easy to get sucked into the vortex of comparing, reading reviews and discussions and contemplating things that are essentially minor details. All the while talking yourself into getting products that you want, rather than what you need. Or what would match one's skill level. Reading this thread from the beginning you can observe how my own targets and budget drift. I'm quite aware of this, and have read my earlier posts just to remind myself of it. In terms of value, you are probably very correct, and I would think that the Pareto principle ap
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