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  #21  
Old 01-07-2014, 05:23 PM
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Peter Ward
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Originally Posted by gregbradley View Post
... PS and it also shows 255 in the levels dialogue box.

Greg.
Hello Greg.... suppose I needed to be more specific...

Global levels have some 255 data..which I suspect are hot pixels.

But the brightest stars are not, well, the brightest.

As you can see from the attached sample, their core brightness is well down
which shouldn't be the case.

Just my 2 cents worth...
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  #22  
Old 01-07-2014, 05:46 PM
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The first thing I noticed was the levels are compressed...nothing seems to be at 255:255:255

That said, a beautiful field and well stitched mosaic.
Quote:
Originally Posted by Peter Ward View Post
Hello Greg.... suppose I needed to be more specific...

Global levels have some 255 data..which I suspect are hot pixels.

But the brightest stars are not, well, the brightest.

As you can see from the attached sample, their core brightness is well down
which shouldn't be the case.

Just my 2 cents worth...
Ah yes that is the case. The stars were toned down in brightness to emphasise the neb. Perhaps I took it too far!

Greg.
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  #23  
Old 01-07-2014, 05:57 PM
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Ah yes that is the case. The stars were toned down in brightness to emphasise the neb. Perhaps I took it too far!

Greg.
OK then. ...Whatever floats 'yer boat is fair enough
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  #24  
Old 01-07-2014, 06:01 PM
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OK then. ...Whatever floats 'yer boat is fair enough
Yes no free lunches with PS tools.

I restored the star brightnesses.

Greg.
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  #25  
Old 02-07-2014, 01:57 PM
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Octane (Humayun)
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Awesome, Greg. What a psychedelic part of the sky!

H
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  #26  
Old 02-07-2014, 10:17 PM
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Awesome, Greg. What a psychedelic part of the sky!

H
Thanks H, I do like this part of the sky. I am looking forward to seeing your Rho mosaic finished. That should be very good. The luminance is superb.

Greg.
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  #27  
Old 02-07-2014, 10:27 PM
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marc4darkskies (Marcus)
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That is a sweet mosaic Greg!! Very nicely done!
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  #28  
Old 03-07-2014, 07:30 AM
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That is a sweet mosaic Greg!! Very nicely done!

Thanks Marcus. Mosaics are a great view but a lot of work and requires a good run of weather and extra processing.

Greg.
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  #29  
Old 03-07-2014, 08:00 AM
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Got a few hours last night.

Will be installing CCD Commander tonight to ease the focusing-every-30 minutes pain!

H
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  #30  
Old 03-07-2014, 08:56 AM
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Got a few hours last night.

Will be installing CCD Commander tonight to ease the focusing-every-30 minutes pain!

H
Good idea. I need to do that as well. Let me know how easy/hard it was.

I'm a little reluctant at times to add too much software/hardware as even simple stuff seems to require careful handling to continue being reliable. FSQ though is quite focus sensitive. Have you seen the Sharplock feature of ONAG guiders? It would be ideal for an FSQ.

Greg.
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  #31  
Old 03-07-2014, 09:21 AM
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Tell me more about this Sharplock?

At the moment, I'm programming 30 minutes worth of exposures into MaxIm DL and popping into the lounge room to check when that's done (I have a guider settle delay of 60 seconds between exposures) so it often ends up being closer to 45 minutes after 15 x 2 minute exposures. Once the sequence is complete, I just hit AquireStar in FocusMax and it does the rest. It truly is awesome watching the whole system work unattended (as unattended as I have it at the moment!). Once the pier goes in this weekend, I'll be able to set better east/west limits on the G-11 and make more use of time prior meridian flipping.

Astrophotography (despite the current camera woes) has become a lot of fun, again! And, thankfully, I have a very forgiving and understanding wife who doesn't make me feel guilty!

Next, is to employ an all-sky camera so I can remotely check when to pull the plug. The final destination, of course, is to build an observatory with a cloud/weather system integrated into the whole lot to shut/open the roof.

H
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  #32  
Old 03-07-2014, 09:25 AM
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http://www.innovationsforesight.com/SharpLock.htm

Greg.
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  #33  
Old 03-07-2014, 10:13 AM
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That, in theory, sounds excellent.

I can't justify buying another bit of equipment, though. Not at the moment, anyway!

H
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