ICEINSPACE
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Moon Phase
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Waxing Crescent 10%
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09-05-2007, 10:21 PM
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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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Full res. Ha Eta Carina with cooled DSLR and 300mm lens
Hi all
Heres the full res version of the Ha Eta Carina test image, at Houghys request  the first astro image Ive taken with Houghys cooled DSLR
http://www.iceinspace.com.au/uploads...400ha5deg2.jpg
2x10 mins, Idas uv/ir filter, Baader 7Nm Ha filter, 300mm f2.8 flourite lens, Cooled modded 350D sensor temp 5 degrees C. Poor transparancy.
Scott
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09-05-2007, 10:44 PM
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Support your local RFS
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Join Date: May 2006
Location: Wamboin NSW
Posts: 12,405
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Hi Scott, what a lovely image, so crisp and detailed.
A real beauty.
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09-05-2007, 11:18 PM
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6EQUJ5
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Join Date: Oct 2004
Location: Sydney
Posts: 3,663
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very smooth image scott thats great stuff..theres no or hardly any noise there
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10-05-2007, 12:40 AM
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I've got a Sirius eye !
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Join Date: Mar 2007
Location: Country W.A.
Posts: 1,587
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Wow ! That's a very nice image Scott !
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10-05-2007, 07:30 AM
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AstroNan
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Join Date: Nov 2004
Location: Newcastle
Posts: 685
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Talk about a bold effort. The detail in that image is extraordinary!
Words can't explain just beautiful.
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10-05-2007, 08:16 AM
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Amongst the stars
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Join Date: Jun 2006
Location: Glen Innes, N.S.W.
Posts: 2,888
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Fantastic detail for a 300mm lense!!! and not much noise considering only 2 images...A top image!!
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10-05-2007, 11:58 AM
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~Dust bunny breeder~
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Join Date: Nov 2004
Location: The town of campbells
Posts: 12,359
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what great detail!!! 
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10-05-2007, 12:10 PM
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Moderator
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Join Date: Apr 2005
Location: NEWCASTLE NSW Australia
Posts: 33,428
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Quote:
Originally Posted by Garyh
Fantastic detail for a 300mm lense!!! and not much noise considering only 2 images...A top image!!
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Ahhh yes, but only two images produced with a cooled sensor means virtually no noise 
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10-05-2007, 01:59 PM
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I've got a Sirius eye !
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Join Date: Mar 2007
Location: Country W.A.
Posts: 1,587
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cooled dslr
Is there a thread describing the cooled 350D ? Would like to read it !
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10-05-2007, 02:02 PM
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Gravity does not Suck
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Join Date: Mar 2005
Location: Tabulam
Posts: 17,003
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Well if that is not the best cure for app fever I have seen.
Extraordinary... we need a new superlative to describe this one.
I can not get over the nebulosity and the detail of same.
Fantastic work fantastic gear.
Houghy can you point me to a thread showing your cooling set up.
A lot of beginners may not realise the relatively small size of this scope ...why would you want a giant 80ed I ask.
Brilliant, fantastic, marvellous to the power of ten.
Unbelievable optics ..everything really.
Is the WR bubble the round neb to the upper left?
Congratulation to all.
alex
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10-05-2007, 02:03 PM
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Gravity does not Suck
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Join Date: Mar 2005
Location: Tabulam
Posts: 17,003
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Quote:
Originally Posted by bluescope
Is there a thread describing the cooled 350D ? Would like to read it !
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as indicated me also.
alex
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10-05-2007, 04:27 PM
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www.NicksAstronomy.com
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Join Date: Mar 2006
Location: Glen Innes, NSW
Posts: 574
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Wow! That was truly worth the 5minute loading time...
Amazing!
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11-05-2007, 11:24 AM
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Registered User
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Join Date: Jul 2005
Location: maryland newcastle AUSTRALIA
Posts: 1,851
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scott a beautiful effort, cant wait till the seeing gets better ,well done
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11-05-2007, 01:16 PM
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Amongst the stars
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Join Date: Jun 2006
Location: Glen Innes, N.S.W.
Posts: 2,888
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Quote:
Originally Posted by h0ughy
Ahhh yes, but only two images produced with a cooled sensor means virtually no noise |
Green with envy  ...I need 10 images to get the same result...
very GREEN...lol
Has anyone tried this themselves? cooling mod, I havn`t seen anyone actually try it?..
Houghy just curious...how much does the camera weigh all up now?
Must be some chunk of lead now...lol!!!
cheers
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11-05-2007, 01:35 PM
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I've got a Sirius eye !
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Join Date: Mar 2007
Location: Country W.A.
Posts: 1,587
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Thanks for the link Houghy ! How much didi it cost and how long to get done ?
Quote:
Originally Posted by h0ughy
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Last edited by bluescope; 11-05-2007 at 01:54 PM.
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11-05-2007, 02:06 PM
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Moderator
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Join Date: Apr 2005
Location: NEWCASTLE NSW Australia
Posts: 33,428
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a few weeks all up, I sent my own camera over to korea for the operation, and yes it is weighty now. must weigh it to tell you how much.
cost was around the 1500 AUS mark
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11-05-2007, 02:21 PM
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I've got a Sirius eye !
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Join Date: Mar 2007
Location: Country W.A.
Posts: 1,587
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Quite expensive ... but obviously a very good mod ... still makes for a cheap 8 megapixel camera. The dark frame comparison from previous postings is amazing and ofcourse the image on this thread is the proof of it's capability. Cheers !
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11-05-2007, 02:36 PM
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on the highway to Hell
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Join Date: May 2005
Location: Adelaide
Posts: 2,623
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 truly a quantum leap for dslr's - i'm with alex here, need a new superlative for this!
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12-05-2007, 01:21 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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Many thanks all
yes it is a bit heavier, but Houghy also has the battery grip that holds 2 batteries. Juts a matter of re-balancing the mount and all is fine. There is absolutely no virebration from the cooling fan at all.
because the canon Cmos sensor is designed to operate at room temperature, whereas dedicated CCD astro cameras are not, it responds to cooling even moer so than an astro camera, dropping the temp to a few degrees sees thermal noise drop to virtually zero
See Terry Lovejoys in depth testing
http://www.pbase.com/terrylovejoy/da..._a_closer_look
He notes that at 6 degrees the canon has 1/10th the noise of a Sbig STL-11000M at 0 degrees.
Scott
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