CLOUDY NIGHTS FORUM ARCHIVES
"Live Forums" can be found here: Live Forums


Astrophotography and Sketching >> DSLR & Digital Camera Astro Imaging & Processing

Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | >> (show all)
Anonymous
Unregistered




Re: Canon Powershot Series Users Group new [Re: skookum]
      #572078 - 08/24/05 12:28 PM Attachment (236 downloads)

anyone use a Canon A510?

Attachment

Edited by Quantum6 (08/24/05 12:40 PM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
Anonymous
Unregistered




Re: Canon Powershot Series Users Group new [Re: ]
      #572088 - 08/24/05 12:43 PM Attachment (200 downloads)



Attachment

Edited by Quantum6 (08/24/05 12:43 PM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
Ari K.
member


Reged: 06/10/05
Posts: 24
Re: Canon Powershot Series Users Group new [Re: ]
      #572913 - 08/24/05 10:54 PM

Here are a couple of pictures I took tonight with my C8 & Canon A70.





Ari K.
http://users.adelphia.net/~akoutso/AstroPhotos/

Edited by Ari K. (08/25/05 06:41 PM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
ForgottenMObject
Post Laureate


Reged: 09/11/04
Posts: 3660
Loc: Maryland, US
Re: Canon Powershot Series Users Group new [Re: Ari K.]
      #573366 - 08/25/05 10:23 AM

Very nice!

--------------------
Matthew
IDA member
XT8i, 10x50 binoculars, lots of eyepieces


Post Extras: Print Post   Remind Me!   Notify Moderator  
MLKRDMA
member


Reged: 02/12/05
Posts: 43
Loc: Southwest Missouri, USA
Re: Canon Powershot Series Users Group new [Re: ForgottenMObject]
      #573534 - 08/25/05 12:51 PM

Hi Everyone:

I just placed an ad (for sale) in the Shop and Swap section for a Digi-T adapter for a Canon A60, A, 70, A75, A85. Thanks.

MK

--------------------
Meade LX200 10" f/6.3
Celestron NexStar GPS 8" f/10
Orion 80ED
SBIG ST-7ME
Toucam Pro
Canon Powershot A75 (Retired)


Post Extras: Print Post   Remind Me!   Notify Moderator  
Mobius1
scholastic sledgehammer


Reged: 08/28/05
Posts: 753
Loc: Madison, WI / Gurnee, IL
Re: Canon Powershot Series Users Group new [Re: MLKRDMA]
      #578162 - 08/28/05 10:59 PM Attachment (291 downloads)

I use the Canon A-80 with the Digi-T adapter on my LX90 8". I got some pretty good views with it, most at 400ISO and 15seconds exposure. Here is M42; a 15 second exposure at only 50ISO. Edited using GIMP 2.2. This particular pic was actually taken before I got the Digi-T, and the A80 was on a separate tripod aimed afocally through a 26mm EP. Trust me, it was difficult to set up.

Attachment

--------------------
Martin

William Optics 66SD
Orion 100ED
Orion 120-ST EQ
PST-Ha
Celestron CGE 1100
Canon Rebel XSI with Astronomik filters
DSI-IIC
Homemade spectroscope in progress...
Yerkes Observatory Volunteer
(24" Cass on weekends)

Edited by Grizz (08/29/05 06:58 AM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
Mobius1
scholastic sledgehammer


Reged: 08/28/05
Posts: 753
Loc: Madison, WI / Gurnee, IL
Re: Canon Powershot Series Users Group new [Re: Mobius1]
      #578163 - 08/28/05 11:00 PM

OH MY! I apologize for the size of the pic!

--------------------
Martin

William Optics 66SD
Orion 100ED
Orion 120-ST EQ
PST-Ha
Celestron CGE 1100
Canon Rebel XSI with Astronomik filters
DSI-IIC
Homemade spectroscope in progress...
Yerkes Observatory Volunteer
(24" Cass on weekends)


Post Extras: Print Post   Remind Me!   Notify Moderator  
Grizz
Carpal Tunnel


Reged: 04/24/03
Posts: 2176
Loc: Waldwick,New Jersey USA
Re: Canon Powershot Series Users Group new [Re: Mobius1]
      #578342 - 08/29/05 06:59 AM



--------------------
Craig
LX200GPS 10" UHTC SMT
ETX90EC
Orion ED80 APO
Meade LPI Canon 10d Meade DSI

My Photo Gallery




Post Extras: Print Post   Remind Me!   Notify Moderator  
Chris Graham
mmmm...Haggis


Reged: 04/01/04
Posts: 4886
Loc: Stirling, Scotland
Re: Canon Powershot Series Users Group new [Re: Grizz]
      #578364 - 08/29/05 07:40 AM Attachment (301 downloads)

Excellent images

I'm not sure if i showed you lot this one. But here is M42

15 sec x 10 images

Attachment

--------------------
-Skywatcher 8" Reflector on HEQ5 with Skyscan
-Orion ED80 Refractor
-70mm Guidescope/grab and go scope
-Canon EOS 350D
-Toucam Pro 2

Astronomy & Veggies


Post Extras: Print Post   Remind Me!   Notify Moderator  
Anonymous
Unregistered




Powershot A75 vs Meade DSI new [Re: MLKRDMA]
      #581367 - 08/30/05 10:46 PM

I have a question. I currently have a Powershot A75 which I have used and am pleased with the results of objects like the moon, m42, ect... I was wondering how would the A75 stand up to the Meade DSI for DSOs? Would the Chip in the A75 be more sensitve or equal to the one in the DSI? Any help or info would be great. I want to start imaging more DSOs and I am wondering if I should look at the DSI or keep trying with the Powershot.

Thanks
Ken


Post Extras: Print Post   Remind Me!   Notify Moderator  
Janus
journeyman


Reged: 07/13/05
Posts: 7
Loc: Belgium, WV
Re: Canon Powershot Series Users Group new [Re: Mobius1]
      #582994 - 09/01/05 06:06 AM Attachment (229 downloads)

Hi,

I was wondering how did you remove the noise in your picture. I've experimented with piggy back photo's but on the 400 iso I always get a lot of noise on the picture. I also use Gimp.
I've attached a photo I took yesterday of "The Keystone" next to Vega. It has a lot of noise in it...

Greetz

*** Please read forum guidelines for posting images ***

Attachment

--------------------
Jan
Meade ETX 105

Edited by Chris Graham (09/01/05 07:21 AM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
ForgottenMObject
Post Laureate


Reged: 09/11/04
Posts: 3660
Loc: Maryland, US
Re: Canon Powershot Series Users Group new [Re: Janus]
      #583067 - 09/01/05 08:38 AM

Noise can be removed by averaging multiple exposures. The freeware program called Registax can do this. After that, one has to stretch the image, basically knocking down the black background level to something near black while bring out the stars. It takes practice to get a decent image from raw data, and the more light pollution you have, the worse it gets. The raw data from some of my widefield shots is enough to make one cry - I never knew the nightsky was such a "nice" shade of grey?!

--------------------
Matthew
IDA member
XT8i, 10x50 binoculars, lots of eyepieces


Post Extras: Print Post   Remind Me!   Notify Moderator  
Janus
journeyman


Reged: 07/13/05
Posts: 7
Loc: Belgium, WV
Re: Canon Powershot Series Users Group new [Re: ForgottenMObject]
      #583085 - 09/01/05 08:58 AM Attachment (250 downloads)

I've discoverd how to remove the noise, I duplicated the layer and set the modus to grain merge.
thx

ps: sorry about the large picture in the first post :$

Attachment

--------------------
Jan
Meade ETX 105


Post Extras: Print Post   Remind Me!   Notify Moderator  
ForgottenMObject
Post Laureate


Reged: 09/11/04
Posts: 3660
Loc: Maryland, US
Re: Canon Powershot Series Users Group new [Re: Janus]
      #583114 - 09/01/05 09:39 AM

Much better!

--------------------
Matthew
IDA member
XT8i, 10x50 binoculars, lots of eyepieces


Post Extras: Print Post   Remind Me!   Notify Moderator  
Chris Graham
mmmm...Haggis


Reged: 04/01/04
Posts: 4886
Loc: Stirling, Scotland
Re: Canon Powershot Series Users Group new [Re: Janus]
      #583600 - 09/01/05 03:24 PM

Quote:

I've discoverd how to remove the noise, I duplicated the layer and set the modus to grain merge.
thx

ps: sorry about the large picture in the first post :$




Dont worry about it m8, looking forward to some more images.

Keep em comming

--------------------
-Skywatcher 8" Reflector on HEQ5 with Skyscan
-Orion ED80 Refractor
-70mm Guidescope/grab and go scope
-Canon EOS 350D
-Toucam Pro 2

Astronomy & Veggies


Post Extras: Print Post   Remind Me!   Notify Moderator  
NJ Night Sky



Reged: 03/25/04
Posts: 833
Loc: Hillsborough, NJ
Re: Canon Powershot Series Users Group new [Re: Chris Graham]
      #586707 - 09/04/05 04:44 PM

I took this image of M57 lastnight with a Cannon A57, 10" LX200 and a Maxview 40mm eyepiece.

6 15 sec shots processed in registax and photoshop.


--------------------
Jim
NJ Night Sky- J&T Telescope - MicroStock Photography - Shop4Scopes


Post Extras: Print Post   Remind Me!   Notify Moderator  
Mobius1
scholastic sledgehammer


Reged: 08/28/05
Posts: 753
Loc: Madison, WI / Gurnee, IL
Re: Canon Powershot Series Users Group new [Re: NJ Night Sky]
      #586765 - 09/04/05 06:01 PM

For noise, I usually tone it down by using 50ISO instead of 400ISO, that's the simplest solution. Also I dont zoom too much to keep the pixelization down. With GIMP, i usually increase contrast and brightness a bit. Then I tweak the histogram (usually narrow the color values), and add an unsharp mask. Sometimes I dilate or erode as necessary. Now this may be a dumb question, but does Registax work allright with JPEG's???

--------------------
Martin

William Optics 66SD
Orion 100ED
Orion 120-ST EQ
PST-Ha
Celestron CGE 1100
Canon Rebel XSI with Astronomik filters
DSI-IIC
Homemade spectroscope in progress...
Yerkes Observatory Volunteer
(24" Cass on weekends)


Post Extras: Print Post   Remind Me!   Notify Moderator  
Ari K.
member


Reged: 06/10/05
Posts: 24
Re: Canon Powershot Series Users Group new [Re: Mobius1]
      #590953 - 09/07/05 11:38 PM

Well, another great clear night in Maryland.
Here are tonight's results:



Ari K.
http://users.adelphia.net/~akoutso/AstroPhotos/


Edited by Ari K. (09/07/05 11:43 PM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
ForgottenMObject
Post Laureate


Reged: 09/11/04
Posts: 3660
Loc: Maryland, US
Re: Canon Powershot Series Users Group new [Re: Ari K.]
      #591198 - 09/08/05 08:31 AM

Indeed, it was another clear night in Maryland!

I think you can see a bit of M110 above M31 in that photo!

--------------------
Matthew
IDA member
XT8i, 10x50 binoculars, lots of eyepieces


Post Extras: Print Post   Remind Me!   Notify Moderator  
Anonymous
Unregistered




Re: Canon Powershot Series Users Group [Re: ForgottenMObject]
      #591729 - 09/08/05 03:45 PM Attachment (254 downloads)

Hi All,

Here's a pic I took last week of M27 Dumbell Nebula with my A70 attached to my 8" LX90 via Orion's Steady-Pix and 20mm lens.

15 sec x 2. ISO 400

David T
North Wilkesboro, NC

Attachment


Post Extras: Print Post   Remind Me!   Notify Moderator  
Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | >> (show all)


Extra information
1 registered and 63 anonymous users are browsing this forum.

Moderator:  Charlie Hein, knuklhdastnmr 

Print Thread

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled


Thread views: 102965

Jump to

CN Forums Home



Cloudy Nights Sponsor: Astronomics