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01-22-2013, 05:21 PM   #31
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QuoteOriginally posted by baro-nite Quote
My makeshift eQtorial Qnfiguration:
I'd be careful if I were you. It looks like that thing bites

01-22-2013, 05:47 PM   #32
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QuoteOriginally posted by baro-nite Quote
My makeshift eQtorial Qnfiguration:
Cool! Look forward to the pics.
01-22-2013, 05:47 PM   #33
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QuoteOriginally posted by baro-nite Quote
My makeshift eQtorial Qnfiguration:

Tonight I'm going to try video capture and see if I can get better images for stacking that way. Oops, just noticed I need to put the TCs back on.
The video project is a great idea... hadn't thought of that
01-22-2013, 06:02 PM - 2 Likes   #34
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I have no experience in astrophotography (probably obvious), but I am amazed that the Q could accomplish this. This is Jupiter with what I think are 4 of its moons. Q with Tokina 800mm f/8 manual lens.

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01-22-2013, 06:43 PM   #35
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QuoteOriginally posted by wcr13 Quote
I have no experience in astrophotography (probably obvious), but I am amazed that the Q could accomplish this. This is Jupiter with what I think are 4 of its moons. Q with Tokina 800mm f/8 manual lens.
Well, now you do have experience in astrophotography. Well done! Does indeed look like Jupiter; the moons always stay pretty much in line so that must be a star off to the right. (When was this taken?)

At f/8 you should be able to get a good exposure at ISO 800, 1/80 second; the moons will be dim, but you should get detail on Jupiter. Is there a mirror lens in my future???
01-22-2013, 07:10 PM   #36
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Nice work. The more you shoot the better you get. That is Jupiter. There are 4 moons but like you, every pic i've taken only shows 3
01-22-2013, 07:27 PM   #37
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QuoteOriginally posted by ivoire Quote
The video project is a great idea... hadn't thought of that
Not my idea; some of the most stunning amateur planetary imaging I've seen is stacked images from CCD video capture. Anyway, the main thing I got from this evening's session was a reminder of the importance of "seeing", i.e. atmospheric stability or the lack thereof. I had clear dark skies and little wind, and it had been a cold day (for here), and Jupiter is almost straight overhead (least atmosphere in the way), and yet the heat shimmer has a huge effect in the video I shot. That plus I'm at a bit of a loss as to stacking software that handles video and/or untracked objects easily, and I'm not sure where I'll go with this. Here's a still cropped from some video:


Sunrise at the Gassendi crater
Still cropped from video (Pentax Q, 1080p, ISO 800, 1/160)
DA* 300 on 2x and 1.4x TCs, down a stop (combined for f/16)


So next time I want to try this, it'll have to be in the dark of the morning.
01-22-2013, 07:34 PM   #38
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QuoteOriginally posted by ivoire Quote
Nice work. The more you shoot the better you get. That is Jupiter. There are 4 moons but like you, every pic i've taken only shows 3
Baro-nite and Ivoirie, Thank you for the kind words and for the information on Jupiter's moons. I took the picture last night, when Jupiter was close to the moon (I would not otherwise have been able to locate/identify it).

Thank you for the tips on exposure settings. I went out to try them tonight, but it is slightly cloudy and I will have to try again when the sky is clearer.

The Tokina is not a mirror lens, it is a t-mount, preset lens. An impulse eBay purchase that has been sitting around waiting for the Q to make it useful. lol

01-22-2013, 08:01 PM   #39
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QuoteOriginally posted by wcr13 Quote
I would not otherwise have been able to locate/identify it
I've noticed this sort of comment a few times in this thread, I suggest installing Stellarium, it's freeware and there are versions for most operating systems.
01-22-2013, 08:12 PM - 3 Likes   #40
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Made a video with Pentax Q + Kenko 1.5x PzAF + DA* 300mm F4:
01-22-2013, 08:25 PM   #41
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QuoteOriginally posted by alfa75ts Quote
I've noticed this sort of comment a few times in this thread, I suggest installing Stellarium, it's freeware and there are versions for most operating systems.
That's a good program. If you have an i-phone, android or windows phone, i-pad or android tablet there are apps that will use your current position and point you to the celestial body/star of your choice.
01-22-2013, 10:03 PM - 1 Like   #42
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Moon and Jupiter

This will be a nice new threat, the Q is a very useful tool indeed.
Shot yesterday, with the Q and the Sigma 150-500 ... I totally forgot to use the aperture ring on the Fotodiox Adapter, so i think it was pretty near to fully closed (in my excuse... it was 1:30 am when I finally went out to look at the sky )
Here is one of my results:
http://www.flickr.com/photos/51467365@N00/8405745874/in/photostream/
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01-23-2013, 07:13 AM   #43
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QuoteOriginally posted by wcr13 Quote
The Tokina is not a mirror lens, it is a t-mount, preset lens. An impulse eBay purchase that has been sitting around waiting for the Q to make it useful. lol
Holy mother of a massive lens! I look forward to your next attempts.

QuoteOriginally posted by alfa75ts Quote
I've noticed this sort of comment a few times in this thread, I suggest installing Stellarium, it's freeware and there are versions for most operating systems.
A good recommendation -- I haven't used it in several years, but remember it as impressive even then. Nowadays I'm using SkyWatcher on iOS, just stunning.

QuoteOriginally posted by VisualDarkness Quote
Made a video with Pentax Q + Kenko 1.5x PzAF + DA* 300mm F4:
Nicely done, and also answers a question I had after also shooting some Moon video: is rolling shutter a factor, or is it all atmospheric shimmer? Given that you have a similar amount of shimmer to what I got but are shooting at half the magnification (hence half the apparent motion) I'd say it's all atmosphere.

QuoteOriginally posted by mgbirder Quote
Shot yesterday, with the Q and the Sigma 150-500
Looks great!
01-23-2013, 08:07 AM   #44
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QuoteOriginally posted by mgbirder Quote
This will be a nice new threat, the Q is a very useful tool indeed.
Shot yesterday, with the Q and the Sigma 150-500 ... I totally forgot to use the aperture ring on the Fotodiox Adapter, so i think it was pretty near to fully closed (in my excuse... it was 1:30 am when I finally went out to look at the sky )
Here is one of my results:
Moon and Jupiter Conjuction - 21.01.2013 | Flickr - Photo Sharing!
Nice, you also got the colors in there! I haven't had the chance to capture Jupiter like this due to the turbulence and haze high up in the sky, as you can see in my movie.
QuoteOriginally posted by baro-nite Quote
Nicely done, and also answers a question I had after also shooting some Moon video: is rolling shutter a factor, or is it all atmospheric shimmer? Given that you have a similar amount of shimmer to what I got but are shooting at half the magnification (hence half the apparent motion) I'd say it's all atmosphere.
Yeah, this is at least mainly turbulence, without a doubt.
01-23-2013, 09:50 PM   #45
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QuoteOriginally posted by wcr13 Quote
I have no experience in astrophotography (probably obvious), but I am amazed that the Q could accomplish this. This is Jupiter with what I think are 4 of its moons. Q with Tokina 800mm f/8 manual lens.
Very good first shot. Decrease the exposure and fine tune the focus and you should be able to see cloud bands on jupiter.
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