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Everything posted by Jessun

  1. The future for mounts?

    Amazing how such wobbly and thin looking cogs can be so strong. Always wondered what an industrial robot would be capable of carrying a scope. It would be quite a sight. /Jesper
  2. Interesting thread. Did anyone run a CMOS with at least 5 or 10 min subs? Would amp glow or something else destroy the image? /Jesper
  3. Hi! I have looked through a telescope only a handful of times, using the dark hours exclusively to image. The scope back then was a SW120ED and the eyepieces cheap ones. Now I'm breaking up my imaging rig which leaves me with one or two APM LSOZ 105/650 to use for visual work. The questions that pop up are: - Is there a great difference looking through one scope vs looking through some kind of bino setup? - For the scopes above, what eyepiece could you recommend for Moon and which one for DSOs? I have no budget for a nice collection... I literally know nothing in this field of the hobby. /Jesper PS Perhaps better suited in the 'Getting started with observing'. Total newbie here...
  4. Question from a CCD guy, why are CMOS files larger? Not just the added pixels? /Jesper
  5. M31 (Esprit 150 core + ED 80)

    Absolutely stunning! Great colours! /Jesper
  6. Hm, 21.8 + about 15 = 36.8. About 18mm left. Might be some other OAG out there that you can squeeze in? With the stuff I use, M68 rotator and the Riccardi M63 reducer I'd be at about 74.5mm. 75.6 is recommended so I still have room for a stamp! OAG? Nope... but never used one. /Jesper
  7. Got a reply from Vince as well. The square threaded plate around the CCD window of the 16200 comes off and the EFW3 bolts on from inside the wheel housing. (I'd be willing to guess that one might drill holes in the EFW2 as well for this purpose). The back focus saving is about 5mm. Great stuff!! /Jesper
  8. I'm thinking about stepping up the filter size, but I'm at loss regarding the many different sizes around the 2" mark... The new Atik EFW3 comes with wheels in either 2" or 50.8mm according to FLO. To me that's pretty much the same dimension. Astrodon sell 50mm unmounted, so what version of this FW would I need? /Jesper
  9. 50.8mm, 50mm, 2" filters???

    Yes, odd mistake to do. In any case the Astrodon filters are listed as 50mm. /Jesper
  10. There were still some odd lines in there, and what looked like rotation. (as if the software tried to align the flat - well flats don't move...) /Jesper
  11. You can always add a fuse if you want to. I cut all my cig plugs and went for banana plugs or XLR plugs. /Jesper
  12. 50.8mm, 50mm, 2" filters???

    Yes indeed! I'm confused by the options here. Giving it another thought I realize that 2" is 50.08mm and not 50.8mm but that hasn't solved the mystery. All I ever used was 1" or 2" mounted filters. Gives me something to hold on to as I handle them... /Jesper
  13. Very odd indeed! The flat looks inversed and way to blotchy without showing a single dust bunny on any optical surface, and I don't get the sharp lines in the stack either... The luminance with no flat looks amazingly flat as it is. I have no idea what's going on here! /Jesper
  14. But just to be sure, I'm asking a question here, and I don't know how these units might fit together. /Jesper
  15. For rotation I have for years relied on these: https://www.teleskop-express.de/shop/product_info.php/info/p6983_Baader-M68-Zeiss-Gewinde-Schnellkupplung-und-360--Rotation.html But they build 25mm so I'm keen on not busting my available back focus. It worked a treat with the EFW2 and the Atik460 and I can't afford too many millimetres... /Jesper
  16. Attaching this to a 16200 it says that the front plate can be removed to shorten back focus. Do I understand this correctly that the square threaded piece, that's bolted with what looks like 6 screws onto the 16200, can be removed and that the EFW3 is then bolted straight to the camera body so it sits flush? What thickness is this piece? Or even better, what would be the total back focus using this method of attachment? Thankful for any input :-) /Jesper I see these small holes being perhaps the way to facilitate the bolt on?
  17. More supermoon hype...

    That in itself is rather a positive thing I'd say. No one in the target audience is calculating the resolution benefits for imaging... If it can get people interested in the grander scheme of things, just a tad past Instagram, I'm all for it. Personally, I detest that pesky orb at any size ;-) Ok, it was good for evolution, but now it can jog on... /Jesper
  18. I'd be inclined to agree with Alan on this one. Get something easy to use that has the goto and tour function. I wouldn't mind one myself :-) /Jesper My daughter at 2.5 years old was happy with just a simple bird watcher scope.
  19. Hi from south of France

    Welcome to SGL Anthony! It's a great source for knowledge and friends. Good little scope you have there too! /Jesper
  20. Astronomers and flight...

    Don't know what you're talking about ;-) My ol' friend:
  21. CLS-CCD EOS Filter

    Or balance the colours in software to combat the LP. I never used an LP filter and live in the centre of a large city. Jesper
  22. I'm a long time fan of the Startech hubs and zipped sleeves. But now I'm toying with the idea of putting the computers straight on there and scrub the hubs. /Jesper
  23. I'm in a severely LP affected area and with the SW80ED reduced using Atik 460s I was at 1.83"/pixel. I opted for faster optics and landed at 1.92"/pixel, and looking at cameras that would push that to 2.53. My rationale is that you can always increase the canvas size in PS or similar to be able to print big. I print something like 6200*4800 pixels from the little Atik and it looks great. This has made me look less at resolution and more at speed. /Jesper
  24. Hi all, I was very much inspired by Sara's posts about the Eagle (swag72) and realized that I could do a similar approach with what I had at hand, so I ordered an updated PCI mini card with external wifi antennas to go with my Shuttles. I plan to put these on, or next to my OTAs. They lack many features of course, compared to the Eagle, but hope they'll work well enough. I also need the GTOCP4 control box for the mount to complete the wifi setup. Long way away still, but any little progress counts! /Jesper