ICEINSPACE
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Moon Phase
CURRENT MOON
Waxing Gibbous 73.9%
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05-05-2019, 11:08 PM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,431
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Crux to Carina
Some results from the Mudgee Star Party...
My Sigma 105/F1.4 finally got a work-out under dark skies.
What superb glass!
The link here is a crop from a 50 pane mosaic I managed on Saturday night. There was some scattered cloud, but the skies were sublime.
Web resolutions don't do the data justice 
If you right click the image and "save as" you'll discover the data has been uploaded at 4K resolution. I actually had to blur the brighter stars, Akira Fuji style, as the data looked a little too sharp when reduced from its original 11,000 pixel wide panorama.
Hope you enjoy the vista.
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06-05-2019, 12:32 AM
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Don't Panic!
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Join Date: Feb 2015
Location: Mount Gambier, South Australia
Posts: 558
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Wow , amazing image Peter. I don't think I've ever seen so many stars. So sharp and small. Great colours too. Cheers, Richard. 
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06-05-2019, 07:27 AM
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ze frogginator
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Join Date: Oct 2007
Location: Sydney
Posts: 22,077
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06-05-2019, 07:30 AM
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Ultimate Noob
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Join Date: Aug 2011
Location: Melbourne
Posts: 7,013
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Really nice Peter! Mosaics really do make such great images 
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06-05-2019, 09:24 AM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,431
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Quote:
Originally Posted by multiweb
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Mudgee is held the same time as the SPSP and is a much smaller affair, with mainly Sutherland Astronomical Society attendees. Best guess is about 50 or so. Mudgee also has some great cafe's plus about 35 cellar doors if you happen to like a drop of red or white wine
John and Patty at Mudgee Observatory host the event, and have done for many years now. Despite a few passing clouds, conditions were remarkably transparent on Saturday night, which is when I bagged the data.
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06-05-2019, 10:29 AM
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Registered User
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Join Date: Nov 2005
Location: Cairns
Posts: 1,087
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Beautiful!
Cheers,
Tim
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06-05-2019, 01:23 PM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,431
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Quote:
Originally Posted by topheart
Beautiful!
Cheers,
Tim
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Quote:
Originally Posted by Atmos
Really nice Peter! Mosaics really do make such great images |
Quote:
Originally Posted by croweater
Wow , amazing image Peter. I don't think I've ever seen so many stars. So sharp and small. Great colours too. Cheers, Richard. |
Thanks Richard, Col and Tim. I'm now working on the extra frames which will extend the mosaic from the pointers to Carina. PC is groaning a little under all that weight....
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06-05-2019, 03:41 PM
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Registered User
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Join Date: Aug 2010
Location: Canberra
Posts: 3,654
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Top shelf stuff as usual
Steve
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06-05-2019, 07:00 PM
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Registered User
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Join Date: Jan 2009
Location: Adelaide
Posts: 9,988
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Hmmm, looks a little magenta on my monitor.  I thought there was some orange stars in the core section there.
Looks like a good image though.
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06-05-2019, 07:08 PM
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Don't have a cow, Man!
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Join Date: Apr 2013
Location: Adelaide, South Australia
Posts: 1,115
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Lovely colours, Peter. Nice stuff.
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06-05-2019, 07:25 PM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,431
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Quote:
Originally Posted by Bart
Lovely colours, Peter. Nice stuff.
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Ta.
Quote:
Originally Posted by Paul Haese
Hmmm, looks a little magenta on my monitor. I thought there was some orange stars in the core section there.
Looks like a good image though. |
Frank and fearless. I like that!
....and yes...I too thought it was a little too red/magentaish.
I don't normally dabble with OSC cameras...hence was reluctant to fiddle with what Canon thought was "correct" from the 60Da.
Will upload a new, corrected version soon.
Quote:
Originally Posted by Stevec35
Top shelf stuff as usual
Steve
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As always, thanks Steve.
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06-05-2019, 08:06 PM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,431
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New! Improved! Wider! Brighter colours!
But the link is still the same
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07-05-2019, 10:33 AM
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a.k.a. @AstroscapePete
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Join Date: Oct 2011
Location: Sydney
Posts: 1,701
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Just looked at this on my big screen. What a wonderful vista! 
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08-05-2019, 08:24 AM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,431
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Quote:
Originally Posted by Retrograde
Just looked at this on my big screen. What a wonderful vista! |
Ta. Big screens or a high res print are the way to go
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08-05-2019, 10:34 AM
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Registered User
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Join Date: Jan 2005
Location: Newcastle, NSW, Australia
Posts: 4,116
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Wow. That's an impressive lens working so well at such a wide Aperature f2. Just 30 sec subs. Amazing. Just displayed your pic on our Samsung QLED 4Ktv. Looks great.
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08-05-2019, 11:36 AM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,431
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Quote:
Originally Posted by tornado33
Wow. That's an impressive lens working so well at such a wide Aperature f2. Just 30 sec subs. Amazing. Just displayed your pic on our Samsung QLED 4Ktv. Looks great.
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Thanks...just did the same with our 4k TV. Noice!
The Sigma 105mm shows strong vignetting at F1.4, but the star shapes remained excellent to the edge of the 60Da's APS chip.
With just two F-stop clicks it is simply remarkable in sharpness, vignetting and CA even with a full frame sensor.
I sold my Canon 85mm L series F1.2 which at twice the price was simply not in the same league...Canon really need to lift their game.
I first became a fanboy of the Sigma "Art" series with their 50mm...which is also needle sharp and incredible bang for buck.
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08-05-2019, 08:58 PM
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ATMer and Saganist
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Join Date: Jun 2008
Location: Adelaide S.A.
Posts: 2,292
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Just beautiful Peter!
Steve
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08-05-2019, 09:44 PM
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Really just a beginner
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Join Date: Jun 2009
Location: Brisbane
Posts: 3,043
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Very nice Peter - especially on at native resolution on a 4K screen. Gives great perspective to how big NGC3372 actually is
I concur with your opinions on the Sigma Art Series Lenses - I had an 85mm for a short while, but sold it recently when I offloaded all my DSLR gear to go Fuji mirrorless.
DT
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08-05-2019, 10:45 PM
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Registered User
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Join Date: Feb 2006
Location: Sydney
Posts: 18,159
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Wow, that is really something. Stunning, sublime.
Greg.
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09-05-2019, 09:57 AM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,431
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Quote:
Originally Posted by gregbradley
Wow, that is really something. Stunning, sublime.
Greg.
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Thanks, and too kind...as I'm still getting a handle on OSC mosaics...but have to say they are a lot of fun.
Quote:
Originally Posted by DavidTrap
Very nice Peter - especially on at native resolution on a 4K screen. Gives great perspective to how big NGC3372 actually is
I concur with your opinions on the Sigma Art Series Lenses - I had an 85mm for a short while, but sold it recently when I offloaded all my DSLR gear to go Fuji mirrorless.
DT |
Sold all your DSLR'S ?! A brave move, as I still like the real world view from a DSLR finder , admittedly more for nature/sports photography, rather than a screen, (which is indeed useful for Astro).
I've had the 60Da for years, mostly gathering dust, but despite it being somewhat useless under heavily light polluted skies, really like its extended h-alpha response. The kit included an external battery adapter, hence I'm thinking now I can get to dark sites more often some extended timelapse work might also be in order soon
Quote:
Originally Posted by kinetic
Just beautiful Peter!
Steve
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Glad you like it.
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