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Mogfor

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About Mogfor

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    Nebula

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    London & Provence
  1. Lots of cloudy nights lately so revisited my first efforts with the ZWO ASI 1600 from back in October. First go at narrowband and captured about 4 hrs each of Ha, Oiii and Sii (60 x 240s each). Had a few problems with guiding but overall quite pleased with the result. Equipment: Altair EDF 60mm, ZWO ASI1600 Camera, Celestron CGX Mount.
  2. I've recently moved to the ASI1600 from a DSLR and still struggling to get to grips with it for LRGB (longer narrowband seem to be ok). At unity gain (139) the exposures in LRGB come out about 5-10 secs for a correctly exposed histogram. I agree re the number of images this means stacking and haven't quite got my head round it yet. Maybe I'm just doing it completely wrong, which is likely. Have you any experience of theASI1600 and any recommendations. I'm using SGPro fro the image capture....
  3. This is probably a dumb question but I thought I'd pose it anyway. Using the ZWO ASI1600 on some of the Orion targets and with Unity Gain the exposures needs to be between 5 - 10 seconds when using standard LRGB filters. As long as I'm polar aligned, surely the mount will track sufficiently in this time frame without needing guiding corrections from PHD? I'm also thinking that guiding could actually make my images worse as the correction in each exposure would be much more noticeable as it would be a higher proportion of the exposure time - effectively nudging every image? New to this so any thoughts from the experst appreciated...
  4. Had another little play with this image after feedback...
  5. Tom said "Thank you but what am I supposed to do with the SNCR?" Images were captured on his Canon 750D which is unmodified. He took about 60 Lights and then calibrated and integrated 42 of the best in Pixinsight along with Darks, Bias and Flats. Lights were 42 x 300s at ISO1600.
  6. Thanks, I helped with getting the autoguiding set up and focusing but the rest is down to him (and YouTube!).
  7. Thanks, so far he’s been following lots of YouTube Videos, presumably there’ll be one for that as well. Just need to get the PI process flow from him so I can have a go at a few of my more pathetic attempts...
  8. Hi, I helped my 15 year old son to capture some images of Andromeda during the summer. Images were taken on a guided Skywatcher Esprit 80ED using his unmodified DSLR. He's been processing the images in Pixinsight whilst learning to use it - with more success than me so far! He wants to use the image as part of his GCSE Photography exam next year and asked if I could post the image up here for comments. He wants to know if there are areas he can improve so looking for any advice that's out there.....
  9. Looking at a simple and tidy solution for all those cables. I know both are expensive but would be good to hear from people with experience good or bad from either system. Or anything else worth considering?
  10. Thanks Carole, since posting this I've been in discussion with a couple of retailers and one of them has suggested I have another look at the Sky Watcher Esprit ED120 - as I already have and like the ED80. Noticed you've got one of these, how have you found it?
  11. Thanks very much, will try and find out from the retailer if there are similar issues on the larger scopes....
  12. I got into Astrophotography earlier in the year and have really enjoyed the very steep learning curve so far. I was lucky enough to start off with a Celestron 8HD and Skywatcher Esprit 80D on a Celestron AVX mount and have had some great results from both. I keep these telescopes at my home in France (where the nights tend to be a lot clearer!) I'm now looking to get a scope for use in the UK over the winter but want something that isn't going to replicate my other kit. I've been looking at the Williams Optics GT102 (or the FLT132 if I can justify the extra price tag....). My current thinking is that one of these would sit nicely between my existing scopes and their FOV for AP. I'm using an unmodded DSLR at the moment but will probably move to CCD dedicated mono unit later in the year. FOV's via the DSLR are approx. 190 arcmins for the 80ED and 54 arcmins for the Edge 8HD with field flattener/ reducer. If I've done my sums right I think the WO GT102 would give me a FOV of about 110 arcmins so sit nicely between the two existing scopes? I've really enjoyed using the Esprit 80ED and been pleased with the initial results so like the idea of a larger refractor combined with a Decent mono CCD later. Would be great to hear thoughts from the forum on the Williams Optics units and whether there are any others I should consider.
  13. Hi I bought the exact same scope and mount setup in June after being in the same position as you and continually flip flopping on what to get...I bought from Tring Astronomy and they suggested I look at a small refractor at the same time as I'd find it easier to learn the craft with. So on their recommendation I also ended up buying a Skywatcher ED80 refractor to use on the same AVX mount. I've spent all summer using both scopes and have to say that for DSO I've had more satisfying results with the smaller refractor. I captured some (in my opinion as a beginner!) fantastic images of the moon and planets using the Edge 8HD but really struggled with accurate guiding for the longer exposures you need for DSO's. I'm planning to try and improve things with an Off Axis Guider over the winter but this just adds a lot more complexity and cost when you're first starting.... By contrast I used a very simple guide scope and cheap guide camera on the 80mm Skywatcher Refractor and have achieved some really nice early results - It works much better for a lot of the bigger DSO's such as Andromeda, The Pleiades, Orion Nebula etc. I think I'd have got quite disillusioned with the hobby if I'd just gone for the Edge HD on it's own but now I know the results I can get with a simpler setup I'm quite looking forward to the challenges of the Edge HD over the winter! Hope this helps ?
  14. Thanks, it's strange as now I look at the posted jpg there's a definite red/ purple tint. I can't see this on the original .TIF file in Photoshop so must be something to do with how the image was compressed and converted - still learning!!
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