Go Back   IceInSpace > General Astronomy > General Chat
Register FAQ Calendar Today's Posts Search

Reply
 
Thread Tools Rate Thread
  #1  
Old 11-12-2010, 02:04 AM
strongmanmike's Avatar
strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,681
One of the great M45 images

This beautiful image of the Pleiades by Karel Teuwen is a real testemant to the power of modern amateur imaging (and masterful processing technique).

Imaging equipment used: 16" F3.75 astrograph with FLI Microline 16803 and CFW-5-7

Clicking on the full res download botton at the top of the image is well worth the effort - in the huge image that downloads you will see not only amazing fine detail in the nebula and 100's of background galaxies through the dust but there are entire galaxy clusters visible!

http://www.karelteuwen.be/photo_page...g=282&album=15

Sheesh, I have a 12" F3.8 astrograph on its way and essentially the same imaging gear, so man!! the pressure will be on

Mike
Reply With Quote
  #2  
Old 11-12-2010, 06:24 AM
leon's Avatar
leon
Registered User

leon is offline
 
Join Date: Apr 2006
Location: Warrnambool
Posts: 12,800
Yea Michael, dead right mate a simply beautiful image.

Leon
Reply With Quote
  #3  
Old 11-12-2010, 07:26 AM
tlgerdes's Avatar
tlgerdes (Trevor)
Love the moonless nights!

tlgerdes is offline
 
Join Date: Mar 2009
Location: Sydney
Posts: 2,285
It seems to me that you ONLY like images taken with an FLI 16803, is there some sort of bias going on here
Reply With Quote
  #4  
Old 11-12-2010, 09:57 AM
strongmanmike's Avatar
strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,681
Noooo what makes you think that Trev?

Seriously though mate there are cracker images out there by many different camera brands but these highly corrected astrographs are only pretty new eventuations on the amateur market, previously the great amateur images were mostly coming from RCOS or similar longer FL type OTA's. These new bread of wider field astrographs bring a whole new dimension to higher end astroimaging (good to have both). The other thing is that many of the top imagers have moved on from the previous head of the class, the STL11K, to the newer and bigger 16803 based cameras. The other unintentional bias factor is that FLI (and Apogee) have had the 16803 based cameras out for some years now so they are the units out there on these beasts.

Hope you liked the image non the less, I recon it's a cracker regardless of the camera brand - could easily have been taken with an Apogee U16 (not so easily with an STX16803 simply because there almost none out there)

Mike
Reply With Quote
  #5  
Old 11-12-2010, 10:20 AM
Waxing_Gibbous's Avatar
Waxing_Gibbous (Peter)
Grumpy Old Man-Child

Waxing_Gibbous is offline
 
Join Date: Jul 2009
Location: South Gippsland
Posts: 1,768
Nope. Na-unh. Disagree!
Much too "spikey". Looks like a bad Christmas card. All that wonderful nebulosity is shunted into the background and faint yet fascinating detail is lost amid a sea of cheesy spikes. It also appears over-processed.
Don't go there duuude, as the Americans would say.
FWIW Mike, I'm a big fan of your images. They are truly world class and you need take a lesson from no-one.
Sorry but this image is just way over the top and leaves me wondering what the photographer was thinking.
Reply With Quote
  #6  
Old 11-12-2010, 10:33 AM
strongmanmike's Avatar
strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,681
Quote:
Originally Posted by Waxing_Gibbous View Post
Nope. Na-unh. Disagree!
Much too "spikey". Looks like a bad Christmas card. All that wonderful nebulosity is shunted into the background and faint yet fascinating detail is lost amid a sea of cheesy spikes. It also appears over-processed.
Don't go there duuude, as the Americans would say.
FWIW Mike, I'm a big fan of your images. They are truly world class and you need take a lesson from no-one.
Sorry but this image is just way over the top and leaves me wondering what the photographer was thinking.
Well thanks for the compliment and hey fair enough but did you download the full size version? My initial thoughts were similar to yours until I downloaded the full size version and then the spikes lost impact and the amazing detail and subtlty shine IMO

Mike
Reply With Quote
  #7  
Old 11-12-2010, 10:34 AM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 18,183
I have to agree, the spikes are way over the top and to me detract from an otherwise stunning image.

Greg.
Reply With Quote
  #8  
Old 11-12-2010, 10:39 AM
RB's Avatar
RB (Andrew)
Moderator

RB is offline
 
Join Date: Aug 2005
Posts: 26,625
Quote:
Originally Posted by Waxing_Gibbous View Post
Nope. Na-unh. Disagree!
Much too "spikey".
Quote:
Originally Posted by gregbradley View Post
I have to agree, the spikes are way over the top and to me detract from an otherwise stunning image.

Greg.
Agreed, to "spiky"....although I've seen worse......
Reply With Quote
  #9  
Old 11-12-2010, 10:40 AM
strongmanmike's Avatar
strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,681
OK..apart from the diffraction spikes, which are really an unavoidable side effect of the the optical system with sich bright stars, hello ...I haven't seen such clear and sharp transparency through this object over such a field before and that was what I thought was amazing

Mike
Reply With Quote
  #10  
Old 11-12-2010, 11:07 AM
RB's Avatar
RB (Andrew)
Moderator

RB is offline
 
Join Date: Aug 2005
Posts: 26,625
Quote:
Originally Posted by strongmanmike View Post
OK..apart from the diffraction spikes, which are really an unavoidable side effect of the the optical system with sich bright stars, hello ...


He could have used "anti-starspike pro" to tone them down a bit.
Reply With Quote
  #11  
Old 11-12-2010, 11:43 AM
multiweb's Avatar
multiweb (Marc)
ze frogginator

multiweb is offline
 
Join Date: Oct 2007
Location: Sydney
Posts: 22,079
Quote:
Originally Posted by RB View Post


He could have used "anti-starspike pro" to tone them down a bit.
I feel better already. Although I don't use a 16" F3.75 astrograph with FLI Microline 16803 and CFW-5-7, my sh|tty 5" newt gets the same xmas decorat... err... diffraction spikes nearly as good. Unreal details in the neb though
Reply With Quote
  #12  
Old 11-12-2010, 12:37 PM
RB's Avatar
RB (Andrew)
Moderator

RB is offline
 
Join Date: Aug 2005
Posts: 26,625
Thought you'd appreciate that Marc !
Reply With Quote
  #13  
Old 11-12-2010, 01:00 PM
Peter Ward's Avatar
Peter Ward
Galaxy hitchhiking guide

Peter Ward is offline
 
Join Date: Dec 2007
Location: The Shire
Posts: 8,472
Quote:
Originally Posted by strongmanmike View Post
.........not so easily with an STX16803 simply because there almost none out there) .....

Mike
Simply not true.

Hey Mike, you forgot to mention Wild Turkey, Toyota, Telstra and Foxtel
Reply With Quote
  #14  
Old 11-12-2010, 01:52 PM
strongmanmike's Avatar
strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,681
Quote:
Originally Posted by multiweb View Post
I feel better already. Although I don't use a 16" F3.75 astrograph with FLI Microline 16803 and CFW-5-7, my sh|tty 5" newt gets the same xmas decorat... err... diffraction spikes nearly as good. Unreal details in the neb though
Your recent diffraction spiked Orion was a craker, watch you talkin'bout Willis

Diffraction spikes are one of those things that will be either loved, indifferent or disliked by people. I recon in the end it is just a side effect of the easiest and cheapest way of getting the light grasp, speed and field of view

Mike
Reply With Quote
  #15  
Old 11-12-2010, 02:00 PM
multiweb's Avatar
multiweb (Marc)
ze frogginator

multiweb is offline
 
Join Date: Oct 2007
Location: Sydney
Posts: 22,079
Quote:
Originally Posted by strongmanmike View Post
Your recent diffraction spiked Orion was a craker, watch you talkin'bout Willis

Diffraction spikes are one of those things that will be either loved, indifferent or disliked by people. I recon in the end it is just a side effect of the easiest and cheapest way of getting the light grasp, speed and field of view

Mike
I don't mind them but too much is too much and you can't control them. The longer the subs the worse they get. The best shots I've seen on M45 were taken by refractors. Really deep shots also with refractors. All the pleiades shots I've seen taken with a spider secondary holder had overwhelming spikes. Don't get me wrong it's still a top shot but still
Reply With Quote
  #16  
Old 11-12-2010, 02:03 PM
strongmanmike's Avatar
strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,681
Quote:
Simply not true.
Didn't mean to put any noses ouit'a joint Peter, I just haven't seen many, only yours and Martins - which was actually SBIG's and he doesn't have it anymore (does he?) even he uses an FLI now . Once they catch up and become more popular I am sure there will be plenty of STX images circulating and as good as Karels FLI based shot too .

Quote:
Hey Mike, you forgot to mention Wild Turkey, Toyota, Telstra and Foxtel
...wha tha? I told you I like Scotch not Burbon
Reply With Quote
  #17  
Old 11-12-2010, 04:27 PM
Peter Ward's Avatar
Peter Ward
Galaxy hitchhiking guide

Peter Ward is offline
 
Join Date: Dec 2007
Location: The Shire
Posts: 8,472
Quote:
Originally Posted by strongmanmike View Post
... Once they catch up and become more popular I am sure there will be plenty of STX images circulating....
STX16803 numbers are well into three figures (i.e. more than 100 but less than 1000)...not bad for a +$10k CCD.
Differential guiding and the remote guide head will be introduced 1st quarter 2011: which I suspect will give them a further edge.

Just need a few more takers in Oz...Bit like Ferrari's really

Last edited by Peter Ward; 11-12-2010 at 05:37 PM. Reason: Clarification
Reply With Quote
  #18  
Old 12-12-2010, 09:26 PM
SkyViking's Avatar
SkyViking (Rolf)
Registered User

SkyViking is offline
 
Join Date: Aug 2009
Location: Waitakere Ranges, New Zealand
Posts: 2,260
I love it, wonderful image! There is so much to see in the background. Agreed, the spikes are massive but I don't think that detracts from the impressive view (especially the full res version).
Thanks Mike for finding this
Reply With Quote
  #19  
Old 13-12-2010, 12:09 PM
strongmanmike's Avatar
strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,681
Quote:
Originally Posted by SkyViking View Post
I love it, wonderful image! There is so much to see in the background. Agreed, the spikes are massive but I don't think that detracts from the impressive view (especially the full res version).
Thanks Mike for finding this
Ah huh!! Fiiiiiinally.... an enlightened, visionary individual with no irrational deffraction spike phobia
Reply With Quote
  #20  
Old 13-12-2010, 12:22 PM
Octane's Avatar
Octane (Humayun)
IIS Member #671

Octane is offline
 
Join Date: Dec 2005
Location: Canberra
Posts: 11,159
I finally got around to seeing the high resolution image.

So many background galaxies, some beautiful looking ones.

Certainly shows what a bit of aperture can pull in.

H
Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 11:34 PM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Advertisement
Bintel
Advertisement