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Everything posted by jacko61

  1. Does it matter whether Windows is on a tablet, PC or laptop? I run win 10 on my laptop and haven't had any issues with the iPolar. Graeme
  2. There's an example on this old thread
  3. Sorry for being a bait late to chime in but they don't. Their ad shows what a frame from a camera with ampglow looks like then they show the 533 frame which has no ampglow. Graeme
  4. Everyone seems to be avoiding the obvious - visitors from another planet graeme
  5. That's a great image. Puts my first attempt in it's place at least Graeme
  6. According to the FLO website, your finderscope needs 18mm backfocus from the metal tube. As Michael stated above, the ASI120mm mini has 8.5mm from the sensor to the front of the fixed black ring so you need to add 9.5mm to that to get the correct backfocus. I also noticed a comment from one person on the FLo site that they had to remove the focus lock ring which was also mentioned above.. Sky-Watcher 9x50 Finderscope | First Light Optics graeme
  7. Here's my first ever capture of Jupiter using my C8 and brand new ZWO ASI533MC pro with a 2X barlow. Captured in ASICAP, stacked in AS!3 and faffed about with in Registax. The best 500 out of 1200 frames from a single 45 second vid. Next time I'm going to use Sharpcap and take a lot more subs. graeme
  8. Just a quick point. The ASI533 is 17.5mm from the sensor to the front of the fixed* black ring. graeme * I say fixed - I've tried to move the one on my 533 and it's solid so it's staying there.
  9. Hi. Which make of CC do you have? Just looking at the Orion model, the back focus from the 2" accessory collar is 166mm. Depending on your model, that distance might vary. Graeme
  10. As you say you can't 'see' the target in the display, I wonder if you have a long enough exposure setting? Using my canon, I find I sometimes need to set the highest ISO and longest exposure to get the target visible enough to focus. Then I'm usually able to take the ISO back down to 600 or 800 in APT for the imaging session. Graeme
  11. thanks @vlaiv. I was trying to follow Mark Radice's workflow in but I didn't have Sharpcap (or firecapture) so the initial captures are probably lacking. To do the video captures, I just clicked the default settings in ASICAP and hoped for the best. Before I do anything in Sharpcap I have a lot of reading to do I did click the Balance RGB button in Registax but I think I probably overdid the sharpening in wavelets beforehand. As I said, it's my first attempt at capturing video and stacking so I reckon I have a lot to learn. Any and all advice is gratefully received. Graeme
  12. Here's the best of five 45 second videos taken Monday night with my brand new ASI533MC pro. 1200+ frames captured in ASICAP, stacked in AS!3 and tweaked in Registax. Seeing wasn't too good so I couldn't get it any sharper. I've since downloaded Sharpcap since it seems to have a lot more capture features than the ZWO offering. Time will tell. Also forgot to fit my IR cut filter (can you tell it's my first time with a CMOS camera?). Celestron C8 and 2Xbarlow. graeme
  13. To be honest I have no idea. I've never used an ADC (although I could have done with one last night) and if I'm using a barlow I dispense with the reducer anyway as I'm only after close ups of the target. As an example, last night I was hoping to image Saturn and Jupiter with my new ASI533MC pro so I removed the reducer and was viewing the planets through an 8.8 mm eyepiece and barlow before hooking up the camera to the barlow with a 2" nosepiece. I'm not sure (i.e. don't know ) if the scope's focal plane is as critical when there's no reducer in place and In fact, that's probably a subject for a new thread which I might raise today. Graeme
  14. Just taken delivery of this rather lovely Antares 50mm finderscope courtesy of @paul mc c. The optics are in perfect condition and the custom bracket/shoe is a thing of beauty. It will be joining the guidescope on my Zenithstar 73 so I can use it for visual without having to crank up a laptop to figure out what I'm pointing at Graeme
  15. Yep, on both ZWO extensions, the male thread is 4mm. Female end is 10mm deep. On my SVBONY SCT adaptor, the male M42 thread is 4.5mm deep but my SVBONY 10mm extension only has a 3.5mm deep female thread which is exactly the issue you're trying to avoid. I'm currently shopping around for extensions with deeper female threads although I guess it would be easier to simply file the threaded end of the SCT adaptor back a mil or so. Graeme
  16. I can measure mine in the morning but be aware that the zwo 16.5mm extension is M42 male - M48 female. I don't think they do an M42 - M42. This is causing me a headache this weekend trying to figure the 105mm backspacing on my C8 / meade reducer. Graeme
  17. Thanks for the Shimrod. I have various remote focuser software on my laptop already and it works fine. What I'm needing to know is whether or not I can have the handset AND the remote usb2 plugged into the focusser at the same time so I can do my alignments (and visual observing) at the scope then do any AP at the laptop. Just wondering if having both cables in at the same time will cause any electrical or logic issues Graeme
  18. I have Celestron's focus motor fitted to my C8 and I've been using it quite happily at the telescope with the Nexstar+ handset and a cable splitter. However, my AP laptop is in the warm room of my observatory so I'm quite keen to be able to control the motor remotely. I know I can fit a USB 2 (printer) cable and operate the motor from my laptop but what I'd like to know is whether or not I can keep the Nexstar+ handset plugged in at the same time as I do my alignment at the scope and I still do a fair bit of visual observing anyway. Graeme
  19. DHL just dropped off my birthday present - ZWO ASI533MC PRO from FLO but I'm not allowed it till monday Graeme
  20. Yes, this M51 is one of my first attempts at AP - 180 seconds at ISO 800. Only 20 subs but I think I only rejected 2 of them - there does seem to be a fraction of ovalling but it was my first imaging session. I find now that my guiding with PHD2 is very stable once it gets going although I'm still using the ST4 interface rather than ascom.
  21. I'm guiding my Celestron C8 with an SVBONY 60mm guidescope and ZWO ASI290mm mini on a Celestron Advance GT mount. Haven't gone above 3 minutes yet as I only started late spring and it's not dark enough for long exposures right now but I can't see any reason why longer exposures shouldn't be possible. Guiding with PHD2 and I rarely see a flicker off target. At 3 minutes, my stars are nice and round Graeme
  22. Not the right time of year for Andromeda but it's really the first chance I've had to do any observing and imaging since I got my new Zenithstar a couple of months ago apart from one rubbish night on M51. only managed 45 minutes of 60 second subs at ISO320 on my unmodified canon 70d. WO ZS73 with 0.8 reducer. PHD2 guiding, APT for the capture and DSS / GIMP for processing (notice they're all free apps ) Looking forward to later in the year when I can try out my new ASI533MC pro in real darkness. Graeme
  23. Your Jupiter and Saturn are superb. How did you capture them? Graeme
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