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Found 23 results

  1. Complete beginner question regarding using this mount. When I have tried to set up and align the mount , the goto targeting is off by many degrees. Here's what I do - can someone tell me what I'm doing wrong!? With the power off: Align the tripod and mount to North and, with the clutches released, set the declination to my latitude (52deg 28' N). and the mount in the weights-down home position. Lock the clutches and fine tune the alignment on Polaris using the mechanical adjustments on the mount. Turn the power on: Set up the date, time and location, elevation etc. in the handset (noting the American Date format and Longitude first (set to W 1deg 48') DST = Yes Select 1 Star align Pick a star, I usually try Procyon or Betelguese depending on the time. The scope slews to vaguely the right direction but actually nowhere near. It can take 2 or 3 minutes of manual slewing to centre the star in the eyepiece. Finishing, of course, with an up and right movement. Finally, press Enter to complete the alignment ==> Alignment Successful says the handset optimistically. Now from the object menu pick another target. Try, say, Polaris which was where I started and ... nowhere near it. It's the same regardless of the selected target. I have tried 2 star alignment and 3 star alignment, a factory reset before starting, but nothing seems to work. Once i'm lined up on a target the mount tracks nicely - it just won't go where I want it to! Not yet at my wits end but - Help! Mark
  2. Hi everyone. A friend has an EQ3 Goto mount, I think it's the Sky-watcher one. Currently, I know nothing about them, except that he's having issues getting it to work. To the point that he's getting so frustrated with it he's seriously starting to thinking about throwing the mount away. He's described what's happening to me. What he's saying is that the mount never points to the place where he's asked it to point. He's saying that say the scope is supposed to point towards something in Orion, it'll end up pointing somewhere on the other side of the sky. He's also said that it doesn't seem to want to track past a certain point in RA. I'd thought rather than simply jump in and try to help him out and get just as confused, I was wondering if there's some check list of common EQ3 faults that I could work through to see if we can solve the issue. Once thing I do know is that he's running the mount from a dedicated tracer battery, so it maybe safe to assume that the power supply is good. (althought it's something I'm going to double check as I don't want to miss anything)
  3. I have unfortunately broken part of the gear box of my mount when I accidentally let It slipped and dropped, from the decking to hard floor. It has cut the teeth of both of the gears and bent one of the shaft. With the helps from NSAS society, They managed to take them apart and tried to find out what replacement parts I need. They think I need to replace two gears and one shaft. I attached a picture of them. Not sure if the replacement of these parts the motor will work properly. I have emailed the dealer now waiting for a reply from their supplier. Here is my model Skywatcher EQ3 Pro GOTO Mount & Tripod Please can anyone advise what I should do ?
  4. This is my ISO1600 data from 2016 (31 60s subs) plus new ISO800 data (32 120s subs) from last night.
  5. Help! 80% of 115 60-second RGB subs with Zeiss 135mm f3.5 Sonnar. I know I have basically got some really good RGB data here, but I seem to have a problem with red stars. I've done what I can but I am sure I can do more. I also need to look at ways of reducing background noise further. I'm trying a second stack without bilinear debayering.
  6. I finally got a decent image of M1, last year all I managed was a blurry fawn blob that looked like something out of the pocket of a duffelcoat.
  7. I bought my Mak127 and eq3 in April. Due to the light summer nights, working shifts etc, it was only the other night I used it properly since I got it. This is how it went. I set it up, levelling it first, pointing it north, its on the correct latitude, and I have a gps on my mount. Looked through the mounts ocular to check I was on the Polaris...off by a small bit so just tweaked the tripod to the left a little till it was in the crosshairs. Then setup on the handset. I did the two star alignment and all seemed good. After looking around and getting used to the handset, I noticed that objects were not in the centre anymore, yet they were bang on in the finder scope. Any ideas? Also I thought images in a MAK were the correct way up? But there weren't. Maybe I'm wrong but I'm sure that's what I was told. But regardless, got to see a double star, the Ring Nebula and a few other bits n bobs. Not bad considering it was quite light polluted and to find stuff of interest in the part of the sky that was darkest, I used my iPhone app which totally ruined my vision. Can't wait till next time
  8. 34 2-minute subs, no darks. Exif says 6c so the sensor was probably somewhere between -15 and -20C! Begging for a few more hours!
  9. Dear All! Please read everything!!! I have a big DEC backlash on my EQ3 mount near to 8000ms, and the pulse guide correction is slow and the 2000ms doesnt enough to correct this issue. So I decided to correct it with this great EQMOD project to add some new code in the backlash correction The plan was to use the slew direction to correct the backlash! WARNING!!!! this code works like the slew controls so its minimally override the DEC coordinates. Installation from zip file: 1. install AQESCOM - final version\EQASCOM_V200j_Setup.exe 2. Copy files from final version\common files\eqcontrl.dll to C:\Program Files (x86)\Common Files\ASCOM\Telescope or C:\Program Files\Common Files\ASCOM\Telescope, but make BACKUP first! 3. run EQMOD's toolbox and register eqmod.exe 4. Happy testing. In my case the correction ratio is 800 and duration is 290ms PS. Thank You for the developers to this great project!!! final version.zip
  10. For Sale Dual Axis Motor Drive for Celestron CG-4 & Skywatcher EQ3-2 mount £65 Provides multi-speed (1x/2x/8x) motor tracking of the R.A. & DEC. axes. Box has seen better days but drive is in very good working condition used with a EQ3, not needed anymore as have upgraded to NEQ6 On sale at FLO for £119 new http://www.firstlightoptics.com/celestron-mounts/dual-axis-motor-drive-for-cg-4-and-omni.html Looking for £65 including P&P delivered by courier, bank transfer accepted or paypal (fees paid)
  11. For Sale Dual Axis Motor Drive for Celestron CG-4 (Also works with Skywatcher EQ3-2 mount) Box has seen better days but drive is in good working order used with a EQ3, not needed anymore as have upgraded to NEQ6 On sale at FLO for £119 new http://www.firstlightoptics.com/celestron-mounts/dual-axis-motor-drive-for-cg-4-and-omni.html Looking for £65+£5 P&P delivered by courier, bank transfer accepted or paypal (fees paid)
  12. Last night was one of those unexpected clear nights; I had assumed the scattered cloud would spoil everything - in fact I lost ten or a dozen subs once or twice, but the mist was concentrated into the cloud and in between it was nice and clear and steady and despite the LP at home things went quite well. Let's see what did we get? First, 20 minutes on M15, just to wait while my real targets rose a bit higher. I like this because you can make out isolated blue and yellow stars in the gobular. Next, the nebulosity around Gamma Cassiopeia, just 34 minutes as about ten subs were lost to cloud. Really a test as my last attempt on this one didn't show any nebulosity: Sixty-nine minutes on the Wizard Nebula. It must be bright as it was clearly visible on each sub using the preview screen. I was going to do two hours but didn't allow for a branch 40-feet overhead: One target I keep struggling with is M33, the Triangulum Galaxy. I got two hours of data and also used half an hour from three weeks ago. It didn't show up in the previews so the framing is a bit off: Finally, the Plieades, 46 minutes before the sky started to lighten, plus about twenty from earlier in the month. No doubt I will revisit these several times, but it was a much more productive session than my last dark sky attempt.
  13. Here's one of my efforts from 11th January as seeing was really good compared to what I've seen over the last few months. Still trying to figure out planetary photography and this is just one of 20 runs (still got loads to process! Plus more to come if I get time). I think my focus was a bit better on this one as I managed to get really sharp on the moon and it's craters before moving back to Jupiter. This one was taken through a Philips Toucam in a standard Skywatcher 2x barlow attached to my 150PL at 30FPS, full gain. If anyone has any ideas on a better barlow for my scope that would get better results let me know (2x, 3x, 5x?) Thanks for looking, Rob
  14. To my surprise last night wasn't a complete write-off. I managed to get another 135 minutes of decent 5-minute frames of M31, this time without my LP filter. Total of 3 hours 55 minutes with my cooled canon. There was some streaky noise caused by drifting very thin cloud. The subs were much brighter and no moon plus high elevation meant I got away with it. The mix of frames with and without filter stopped the core being too badly blown out. I think I've controlled my urge to over-process this time, but any suggestions for improvement welcome.
  15. I think I am happy with this one.
  16. This is a thread for those whose subs rarely if ever exceed 2 minutes long, often shorter, with relatively low total exposure time to discuss tips and techniques for image processing. Whether your an Alt-Az imager battling field rotation, you have issues with polar alignment or you have a relatively small, unguided mount you will often be faced with the challenge of getting the most out of relatively sparse data. The No-EQ Challenge thread has shown that even twenty minutes of sub-minute exposures can give good results. I think some of the things we could discuss are: We can't get rid of noise, but how can we keep its effects under control What are the best tools for short exposure images and what settings are best? Different types of software and their pros and cons What percentage of subs should we stack? (e.g. can we use a greater proportion of subs to reduce noise while letting sigma delta keep our stars round?) Ways of boosting faint background detail What sort of standard should we be aiming for And anything else
  17. This is the result of my first go at using 16-bit RAW mode instead of 8 on the ASI 120MC, with a 3X barlow on my 150PL, then resampled 2x. I realise this is actually just 12 bits, it also limits the capture rate to about 15 fps on my awful lappie (I was using full screen resolution, but I think I may have the confidence to crop in future). Seeing was very steady, bahtinov mask said focus was dead on. This was the first 60-second capture, put through PIPP, AS!2 and Registax. Though I say it myself, I think this is getting close to the limit for what the 150PL can deliver, such a shame that no Red Spot and the quadruple moon and shadow transit will be after Jupiter sets :-(
  18. Hello, just acquired an EQ3, it's a huge step up from what I was using before but can't help notice it seems to take up quite a lot of space (well I ididnt notice, Mrs Niall noticed emphatically several times...) so assuming I can leave it up and about I was wondering if anyone out there is in a similar position? Anybody out there completely disassemble their eq mount every time or is there a "sort of" way you can do it that saves space. I just worry that if I take the tray off and fold the legs then the weights will all still be on and it'll be a bit unweildy. But then if I take the weights off I might as well remove the arm and so on and so on and so on...
  19. Quite like this! Easier to process than the Heart and Soul!
  20. Ok, I hold my hands up, slightly off topic but I discovered a great daytime use for my EQ3 mount and just had to share. Very suited to the job...If your in to solar power I made this vid this week. Explains it better than me typing (about quarter way through). Excuse my waffling about all things 12v http://www.youtube.com/watch?v=5U92h-2HAyw Thanks for watching
  21. I came across this, and as I was always looking for a step by step guide to PA, I assume that someone else will be too. Hope it helps http://stevebb.com/polar_alignment.html
  22. Hi everyone, I have just bought an eq3 pro. I initially plugged it in and nothing happened so I brought the cigarette lighter adapter out to the car and it began to work. Just wondering is this how you charge it or do you have to leave it plugged in while you are using it? (Newbie here) Thanks a million
  23. They said it couldn't be done! I won't pretend this is perfect but it's 90% of 106 2 minute subs on as astro-modded Canon 450D DSLR using an EQ3 mount at a suburban location, and the transparency last night was poorer than the previous evening. NGC133 and its dust clouds are NOT supposed to be the sort of target you can get with this kit. I know it isn't perfect and doesn't stand up to images with double-figure hours of narrowband subs, but it does have the dusty bits in the right places if compared to Olly's recent image. If I had 20 hours of subs at a dark sky site what would this image be looking like?
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