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geordie85

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Everything posted by geordie85

  1. My original plan is well out of the window now as I bought an esprit 100 so definitely need something alot stronger than a guide scope mount. Thanks for the explanation.
  2. I think you're missing my point of this thread. I was asking if CA would be an issue when using a mono camera and if it would matter if the 2nd scope used FPL-51 glass.
  3. Until very recently I used both colour and mono cameras with the 183 sensor (albeit the QHY version and not ASI). Yes there is amp glow on the right hand side but it's always calibrated out for me. Luminance and narrowband I used 300 second exposures and RGB varied from 30 to 300 second exposures with mono. Almost always 300 second exposures with osc. This thread shows my early attempts with the osc and here is a couple images taken in mono.
  4. That is my plan, but the 2nd scope will need to be aligned so it is pointing to the same place as my main scope. I already have a skywatcher guide scope mount for alignment, but skywatcher haven't said how much weight it can carry without any slippage. I could just use a standard dual saddle but that would result in a big crop after image integration. Here is my main imaging scope, guide scope and the guide scope mount waiting to be filled.
  5. I did think that but I wasn't 100% sure hence me asking. Thank you. That was a consideration but I think it'd be too heavy for the skywatcher guide scope mount.
  6. Hi I've almost got all the pieces for a dual rig apart from a 2nd scope. I've been holding out for an esprit 80 but they're very rare on the 2nd hand market which has got me thinking of other potential scopes for the job. My main imaging scope is a William optics flt98 carbon fiber OTA with 0.8 flattener, sx filter wheel, astrodon filters and a qhy183mm. I have a ASI zwo 183mm and zwo mini filter wheel which will be connected to my 2nd scope mounted on a skywatcher guide scope mount for alignment which is why I need a smaller slave scope, hence thinking of the esprit 80. I've been wanting a triplet to reduce CA but then I thought, is CA mainly due to blue bloating? Could I get a doublet but keep the blue filter in my flt98 and almost eliminate the ca that way? Another question I have is does glass matter? I know FPL-53 glass is superior to FPL-51 but does it matter as I'm only collecting colour data and all the detail will be collected with my main scope? Is there anything else I should be thinking of? Or maybe suggestions of potential scopes?
  7. I'd put my money towards a second hand heq5 or you might get lucky and manage to find an neq6
  8. I remember having this problem before myself but I cannot remember how I fixed it. I think I had a box ticked that I shouldn't have. I know this isn't much help but at least you know it's not your camera
  9. Everything looks the way it should do. Now a test under the stars will tell you if you've got your spacing correct.
  10. Do you dither during your imaging sessions?
  11. If your camera is unmodified then you'll really struggle to get an image like the one you posted.
  12. That shouldn't be a problem as long as you can eliminate all of the tilt. This is a 2 pane mosaic I did. I still have slight tilt on the left which I need to eliminate
  13. How about a 600d? You'll have change of your £400
  14. My guess would be walking noise. There may o ly be a slight drift between your first and last sub, but your light pollution ect would have moved alot further during your imaging session
  15. Yes it is very good at combining data. This is a mix from an atik 383L on a william optics star 71 (very widefield) and my qhy183m and William optics flt 98 (not very widefield). App done this with minimal effort.
  16. I believe there is a problem with light leakage in your calibration frames, namely your flats. Here is your master flat stretched
  17. You should be able to get something decent. This is a single shot using the kit lens on my Canon 600d iso 800 10 second exposure. I was actually lucky enough to catch a meteor too.
  18. So my light bulbs need tin foil hats too now
  19. I have this camera and the mono version. Very happy with them, you'll need an ir/uv cut filter.
  20. That is incredible. Will you do a mosaic of the entire veil complex like that?
  21. Its definitely there, you just need more data. Is that a pure O111 image? What are you using for stacking? I only ask because you've got coloured noise in what should be a mono image.
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