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10-07-2014, 06:23 AM   #946
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I would have been able to get the lunar eclipse since I head in to work at 5:30 or 6:00, but it was cloudy here in the Nashville metro area, and now it is raining like mad. This makes me sad. I do have a trip to Nevada planned and my telescopes and camera equipment are coming along!

10-07-2014, 11:50 AM   #947
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QuoteOriginally posted by VoiceOfReason Quote
I would have been able to get the lunar eclipse since I head in to work at 5:30 or 6:00, but it was cloudy here in the Nashville metro area, and now it is raining like mad. This makes me sad. I do have a trip to Nevada planned and my telescopes and camera equipment are coming along!
Isn't the lunar eclipse tomorrow morning, and not this morning? So you may still be able to get it.
10-07-2014, 12:24 PM   #948
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QuoteOriginally posted by pesterle Quote
Isn't the lunar eclipse tomorrow morning, and not this morning? So you may still be able to get it.
You're right. I seem to have misplaced a day.
10-07-2014, 02:54 PM   #949
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QuoteOriginally posted by VisualDarkness Quote
Really 40s with a 200mm and OGPS1? I must be doing something wrong.
I agree with Tsuken, calibration is key. I first tought that doing a vigourous calibration would be better because accelerometers would get more g's, but I've had better luck with slower and more "orthogonal" movements. When I get 2 or 3 bad frames in a row I redo a precise calibration.

BTW you know you have to do the "precise calibration" from the astrotracer menu and not just the calibration from the GPS menu, right?

Also with a 200 it is difficult to get good results above 50 degres of altitude. The system seems to strugle with finding the correct azimuth the higher up you aim. As Gimbal does, I sometime check the compass reading before making a shot when aiming high. If the reading is all over the place and never stabilizes I just change target.

Good luck, and post your results!

10-07-2014, 03:15 PM   #950
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QuoteOriginally posted by SunValley Quote
I agree with Tsuken, calibration is key. I first tought that doing a vigourous calibration would be better because accelerometers would get more g's, but I've had better luck with slower and more "orthogonal" movements. When I get 2 or 3 bad frames in a row I redo a precise calibration.

BTW you know you have to do the "precise calibration" from the astrotracer menu and not just the calibration from the GPS menu, right?

Also with a 200 it is difficult to get good results above 50 degres of altitude. The system seems to strugle with finding the correct azimuth the higher up you aim. As Gimbal does, I sometime check the compass reading before making a shot when aiming high. If the reading is all over the place and never stabilizes I just change target.

Good luck, and post your results!
Interestingly, if you point the camera straight up, it tracks just fine. I discovered this the other night, I'll see if I can find a sample shot.

EDIT: I can't tell which of the shots I have are the 'straight up' ones and which aren't, I'd been struggling to use he unit minus a tripod (ie, balanced on something stationary) so was having issues with stability. I do remember just setting the camera on my truck, lens skyward and being intrigued by the results.

Double edit, I just realized I never posted my Orion nebula shot I took that night using the rock-tripod.

60 seconds (or 60.1 according to my EXIF... ), ISO 3200, f/5.6, 300mm


Last edited by Sagitta; 10-07-2014 at 03:22 PM.
10-07-2014, 05:32 PM   #951
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Rock tripod! with a 300 mm!! Congratulations are in order! Can I use this in my upcoming presentation on O-GPS1?

About finding the straight up pics, if you make your raw go through something like exiftool by Phil Harvey it will show pitch angle recorded.
10-07-2014, 05:50 PM   #952
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QuoteOriginally posted by Sagitta Quote
Interestingly, if you point the camera straight up, it tracks just fine. I discovered this the other night, I'll see if I can find a sample shot.

EDIT: I can't tell which of the shots I have are the 'straight up' ones and which aren't, I'd been struggling to use he unit minus a tripod (ie, balanced on something stationary) so was having issues with stability. I do remember just setting the camera on my truck, lens skyward and being intrigued by the results.

Double edit, I just realized I never posted my Orion nebula shot I took that night using the rock-tripod.

60 seconds (or 60.1 according to my EXIF... ), ISO 3200, f/5.6, 300mm

That is pretty good.
10-08-2014, 04:01 AM   #953
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QuoteOriginally posted by SunValley Quote
BTW you know you have to do the "precise calibration" from the astrotracer menu and not just the calibration from the GPS menu, right?



I'm not sure that I knew that. I'll have to have a better look at the menus.

10-08-2014, 07:37 PM   #954
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What an unreal eclipse last night!
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10-08-2014, 08:32 PM   #955
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Your images are all upside down!

10-17-2014, 06:20 PM   #956
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Had a blast last night here in Mackay under almost perfect conditions:

M43 - The Great Orion Nebula. Imaged on Skywatcher ED100 + 0.85x Reducer/FF, NEQ6 Pro mount, Pentax K3 @ ISO400 (10x180 second subs). Guided by Orion 80mm Shortscope + SSAG + PHDGuiding 2. Imaged on the 17-18th October 2014.
M45 - Pleiades. Imaged on Skywatcher ED100 + 0.85x Reducer/FF, NEQ6 Pro mount, Pentax K3 @ ISO800 (10x180 second subs). Guided by Orion 80mm Shortscope + SSAG + PHDGuiding 2. Imaged on the 17-18th October 2014.
NGC 2024 - The Flame Nebula (and Horse Head Nebula). Imaged on Skywatcher ED100 + 0.85x Reducer/FF, NEQ6 Pro mount, Pentax K3 @ ISO400 (26x180 second subs). Guided by Orion 80mm Shortscope + SSAG + PHDGuiding 2. Imaged on the 17-18th October 2014.
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10-17-2014, 08:47 PM   #957
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QuoteOriginally posted by weathermon Quote
Had a blast last night here in Mackay under almost perfect conditions:

M43 - The Great Orion Nebula. Imaged on Skywatcher ED100 + 0.85x Reducer/FF, NEQ6 Pro mount, Pentax K3 @ ISO400 (10x180 second subs). Guided by Orion 80mm Shortscope + SSAG + PHDGuiding 2. Imaged on the 17-18th October 2014.
M45 - Pleiades. Imaged on Skywatcher ED100 + 0.85x Reducer/FF, NEQ6 Pro mount, Pentax K3 @ ISO800 (10x180 second subs). Guided by Orion 80mm Shortscope + SSAG + PHDGuiding 2. Imaged on the 17-18th October 2014.
NGC 2024 - The Flame Nebula (and Horse Head Nebula). Imaged on Skywatcher ED100 + 0.85x Reducer/FF, NEQ6 Pro mount, Pentax K3 @ ISO400 (26x180 second subs). Guided by Orion 80mm Shortscope + SSAG + PHDGuiding 2. Imaged on the 17-18th October 2014.
Nice one cobber.
10-17-2014, 09:04 PM   #958
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Excellent work, Mike.

Jack
10-18-2014, 11:55 AM   #959
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Weathermon, nice photos, but with your setup I would guess that you'd get better results with ISO 100 along with longer subs. Looking at the noise characteristics of the K3/k5 and their 14bit RAW files, I'm pretty sure that lower ISO and longer subs are the way to go.
10-22-2014, 04:58 AM   #960
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Thanks guys - yeah my only problem is that I have to deal with the tropics and a lot of the time it's a race against time to get as much imaging done before the clouds move in - I'll be getting more images of the flame nebula again soon to smooth out the noise and bring more detail out (really had to stretch the histogram quite a bit in Photoshop hence more noise).

Here's Comet PanSTARRS C/2012 K1 I took last night
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