Return to the Cloudy Nights Telescope Reviews home page


Astrophotography and Sketching >> Solar System Imaging & Processing

Pages: 1
rg55
scholastic sledgehammer
*****

Reged: 08/02/08

Loc: western US
Jupiter, C8, Neximage 5
      #5534683 - 11/23/12 12:42 AM Attachment (235 downloads)

Taken this evening. Will post more from the session. Seeing was better than average.

Post Extras: Print Post   Remind Me!   Notify Moderator  
rg55
scholastic sledgehammer
*****

Reged: 08/02/08

Loc: western US
Re: Jupiter, C8, Neximage 5 new [Re: rg55]
      #5535323 - 11/23/12 11:44 AM Attachment (146 downloads)

Region of lunar crater Archimedes from last night. Stitched in Microsoft ICE, Celestron C8, Neximage 5.

Post Extras: Print Post   Remind Me!   Notify Moderator  
rg55
scholastic sledgehammer
*****

Reged: 08/02/08

Loc: western US
Re: Jupiter, C8, Neximage 5 new [Re: rg55]
      #5535737 - 11/23/12 03:29 PM Attachment (137 downloads)

Another Jupiter with the same configuration.

Post Extras: Print Post   Remind Me!   Notify Moderator  
ToxMan
Carpal Tunnel
*****

Reged: 01/23/11

Loc: Tucson, Arizona, USA
Re: Jupiter, C8, Neximage 5 new [Re: rg55]
      #5536325 - 11/23/12 09:44 PM

On the Jupiter images, trying lowering gain and frame rate to see if those lines disappear. Lunar shot is great.

Post Extras: Print Post   Remind Me!   Notify Moderator  
rg55
scholastic sledgehammer
*****

Reged: 08/02/08

Loc: western US
Re: Jupiter, C8, Neximage 5 new [Re: ToxMan]
      #5536373 - 11/23/12 10:21 PM

Thanks, ToxMan. I think it must be in the capture process, and the gain/exposure combination is a good place to start investigating. I'll start varying the variables and see what happens.

Post Extras: Print Post   Remind Me!   Notify Moderator  
ToxMan
Carpal Tunnel
*****

Reged: 01/23/11

Loc: Tucson, Arizona, USA
Re: Jupiter, C8, Neximage 5 new [Re: rg55]
      #5536444 - 11/23/12 11:23 PM

I hope it helps, Richard. Although I shoot mono, red channel filter produces the dimmest image on the CCD. So, I have to push the gain, or the video and final image are too dark and under-exposed. Push too hard, and the lines appear.

I don't know that it will solve your lines, but give it a go.


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


Reged: 09/30/06

Loc: CT
Re: Jupiter, C8, Neximage 5 new [Re: ToxMan]
      #5536512 - 11/24/12 12:26 AM

Richard, The moon shot is excellent. I prefer the 2nd Jupiter if you can get rid of the diagonal noise. You can try taking a flat frame video next time and subtract in Registax. I've had mixed results with flats, but it may work for you. Thanks for posting

Regards,
Steve


Post Extras: Print Post   Remind Me!   Notify Moderator  
rg55
scholastic sledgehammer
*****

Reged: 08/02/08

Loc: western US
Re: Jupiter, C8, Neximage 5 new [Re: sfugardi]
      #5537332 - 11/24/12 02:39 PM Attachment (80 downloads)

Thanks, Steve. Here's another out of the same session.

Edited by rg55 (11/24/12 02:40 PM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
rg55
scholastic sledgehammer
*****

Reged: 08/02/08

Loc: western US
Re: Jupiter, C8, Neximage 5 new [Re: rg55]
      #5548109 - 12/01/12 12:23 AM Attachment (42 downloads)

Additional image out of the same session with variation in processing in Registax and Camera Raw. Still contending with artifacts from the camera, but I'm assured that my old C8 is still bringing in good images.

Edited by rg55 (12/01/12 12:24 AM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
Kokatha man
Postmaster
*****

Reged: 09/13/09

Loc: "cooker-ta man" downunda...
Re: Jupiter, C8, Neximage 5 new [Re: rg55]
      #5548291 - 12/01/12 04:54 AM

It'd be great if you could get rid of those horrific artefacts Richard - I've never seen anything on a par with them.....what camera are you using, and have you any idea what's causing them..?

Post Extras: Print Post   Remind Me!   Notify Moderator  
rg55
scholastic sledgehammer
*****

Reged: 08/02/08

Loc: western US
Re: Jupiter, C8, Neximage 5 new [Re: Kokatha man]
      #5548666 - 12/01/12 12:02 PM

Hi KM,
The camera is a Neximage 5. I'm not a DSO ap'er, so don't know much about darks or flats, but could that help?
Once I get out for another capture I'm going to experiment with gain/exposure more as well.
Thanks for reading!


Post Extras: Print Post   Remind Me!   Notify Moderator  
AlanL
sage


Reged: 11/11/10

Loc: Kansas, USA
Re: Jupiter, C8, Neximage 5 new [Re: Kokatha man]
      #5548703 - 12/01/12 12:24 PM Attachment (29 downloads)

I've seen similar but less pronounced artifacts with my Powermate 5x when I get beyond about f30. I'm not sure they're processing artifacts in my case because they are faintly visible on the avi's. If I stack with AS instead of RS6 they aren't as visible in the final image.

Post Extras: Print Post   Remind Me!   Notify Moderator  
rg55
scholastic sledgehammer
*****

Reged: 08/02/08

Loc: western US
Re: Jupiter, C8, Neximage 5 new [Re: AlanL]
      #5548930 - 12/01/12 02:53 PM

Hi Alan,
Are the lines vertical in the initial video? They are in mine.
I suspect my problem is in my capture. My gain and exposure and their relationship to the histogram may need work.
Do you think the use of darks or flats would help?
I had hoped to move up to a 2.5x TV barlow for my captures, but it may be too dim to overcome these kinds of problems. We'll see.
Thanks for reading and your comments.


Post Extras: Print Post   Remind Me!   Notify Moderator  
AlanL
sage


Reged: 11/11/10

Loc: Kansas, USA
Re: Jupiter, C8, Neximage 5 new [Re: rg55]
      #5548946 - 12/01/12 03:04 PM

Lines are about the same angle in the avi's as this photo. Some captures have no sign of them, but most captures with the PM have a little. I've tried different exposure and gain settings, but it doesn't seem sensitive to those. Haven't tried darks or flats, but that would be an interesting experiment. I only use 5x PM when seeing is very good, which doesn't happen very often in my area.

It doesn't show up at all at my more normal f30 captures with a 2x TV barlow.


Post Extras: Print Post   Remind Me!   Notify Moderator  
rg55
scholastic sledgehammer
*****

Reged: 08/02/08

Loc: western US
Re: Jupiter, C8, Neximage 5 new [Re: AlanL]
      #5548947 - 12/01/12 03:08 PM

Do they show up in one channel more than another? I'm using a OSC, so hard to tease them apart.

Post Extras: Print Post   Remind Me!   Notify Moderator  
Pages: 1


Extra information
13 registered and 29 anonymous users are browsing this forum.

Moderator:  TG, Starman81, bilgebay, WOBentley 

Print Thread

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


Thread views: 1567

Jump to

CN Forums Home




Cloudy Nights Sponsor: Astronomics