Return to the Cloudy Nights Telescope Reviews home page


Telescope Specific Forums >> Celestron NexStar

Pages: << 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | >> (show all)
haytor
Pooh-Bah


Reged: 11/29/07

Loc: Smethwick near Birmingham UK.
Re: AP Images Taken with Original NexStar new [Re: Jmel]
      #5154583 - 04/03/12 11:39 AM

Jmel,

a tip you may find useful, i noticed that your Saturn image appeared quite noisy, one way of removing that noise is to pop your image into registax 6, in the wavelet stage,look to the bottom wavelet and the tab for denoise, you can see this screen shot shows that a lot of the noise has been removed, i set the lower wavelet denoise tab to 40, but you can assess better the figure to use that suits your purpose and taste of removing the noise.

I have done nothing else to your image other than that.

Hope you dont mind the suggestion,the attached screen shot looks far less grainy now, at least to me!

BTW, remember to hit the "do all" button at the top left of the page before saving your image!



regards,

Tom

Edited by haytor (04/03/12 11:42 AM)


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


Reged: 01/24/12

Loc: Eastern North Carolina
Re: AP Images Taken with Original NexStar new [Re: haytor]
      #5154601 - 04/03/12 11:44 AM

Awesome Tom! Thanks for the assistance. I find that I end up using the dyadic setting and thus things are increased at a much higher rate. I'll try out your recommendation and report back. Cheers

Post Extras: Print Post   Remind Me!   Notify Moderator  
haytor
Pooh-Bah


Reged: 11/29/07

Loc: Smethwick near Birmingham UK.
Re: AP Images Taken with Original NexStar new [Re: Jmel]
      #5154627 - 04/03/12 12:00 PM

Yes using the Linear rather than dyadic setting tends to be less harsh, also i dont use the "default" below that, i always use "gaussian", again its far less aggressive.

regards,

Tom.

Edited by haytor (04/04/12 11:18 AM)


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


Reged: 12/19/10

Loc: Nashville, TN USA
Re: AP Images Taken with Original NexStar new [Re: Jmel]
      #5154701 - 04/03/12 12:54 PM Attachment (20 downloads)

Nice shot Jmel, I like the colors.

Here's one I posted in the other AP thread, but it probably belongs in this one instead.


Neximage Cam (f5, 1/25s) about 700 frames, 3X barlow with the Baader UV/IR Cut filter.


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


Reged: 01/24/12

Loc: Eastern North Carolina
Re: AP Images Taken with Original NexStar new [Re: haytor]
      #5154746 - 04/03/12 01:34 PM

Quote:

Yes using Linear rather than dyadic setting tend to be less harsh, also i dont use the "default" below that, i always use "gaussian", again its far less aggressive.

regards,

Tom.




I too use the gaussian, but I find that I can never bring out enough detail with linear. I guess I am overcompensating due to aperature envy

I am right under a jetstream in NC, and seeing is never really better than average (at its best). As a result, I sometimes tend to over process, just to bring out the slightest details. It is hard to be objective about it when I spend so long with it.

I had a faux 3x-4x barlow (2x with an extension tube) for some earlier captures, but I couldn't really get the focus/sharpness I wanted, so I went back to the 2x.

It is also worth noting that I am one of those that reverted back to v5 instead of using v6 due to better results. I actually started with 6 for a month, then gave 5 a try, and was really impressed, so it's mainly what I use now.


Post Extras: Print Post   Remind Me!   Notify Moderator  
Tel
Postmaster
*****

Reged: 03/31/06

Loc: Wallingford England
Re: AP Images Taken with Original NexStar new [Re: Jmel]
      #5154989 - 04/03/12 04:29 PM

Hi Jmel,

If it's any consolation, I too couldn't get on with Registax 6 when trying to process my planetary images and reverted to Registax 5 until my good friend, Tom, (Haytor) suggested that on the "Align Page" of Registax 6, I use the feature "Highlight best Frames" at the bottom left under the main heading, "Limit Set Up".

Thus, limiting to 900 best frames from a total of ca. 3000, I had some very reasonable success in producing my last set of Mars images.

You might therefore care to try this before dismissing Registax 6 altogether. (?)

As a result of Tom's tip, I'm now a lot more confident with its use.

Hoping this helps,

Best regards,
Tel


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


Reged: 01/24/12

Loc: Eastern North Carolina
Re: AP Images Taken with Original NexStar new [Re: Tel]
      #5155395 - 04/03/12 10:22 PM

I tried something a little different here. Still used dyadic, but worked more in photoshop to reduce the noise...

SATURN_400iso_1'_768x792_20120402-22h57m35s980.2 by J-mel, on Flickr


Post Extras: Print Post   Remind Me!   Notify Moderator  
haytor
Pooh-Bah


Reged: 11/29/07

Loc: Smethwick near Birmingham UK.
Re: AP Images Taken with Original NexStar new [Re: Jmel]
      #5155734 - 04/04/12 07:19 AM

It matters not which path we take to reach a goal as long as we get there!

And Jmel, you certainly got there, much much better than your original posted Saturn image.

regards,

Tom.

Edited by haytor (04/04/12 07:20 AM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
Peter9
Post Laureate
*****

Reged: 10/30/08

Loc: Yorkshire - Born & Bred
Re: AP Images Taken with Original NexStar new [Re: haytor]
      #5155846 - 04/04/12 09:17 AM

Great final image Jmel. Thanks for posting.

The above exchange of information is what C.N is all about.

Good stuff lads.

Regards. Peter.


Post Extras: Print Post   Remind Me!   Notify Moderator  
haytor
Pooh-Bah


Reged: 11/29/07

Loc: Smethwick near Birmingham UK.
Re: AP Images Taken with Original NexStar new [Re: Peter9]
      #5155879 - 04/04/12 09:43 AM

Jmel,

as an aside to processing, its also important to capture planetary images when the target is at its highest elevation, the reason for that is, when at its highest elevation, then you are shooting through thinner atmosphere compared to when the target is lower.Also i understand your plight of mostly average to bad seeing,and these targets are really difficult to capture well when the atmosphere is unsteady.

Out of hundreds of images i have captured of Saturn,only two ever came out any where near what i really liked, these were taken several years ago, one image when the rings were closed the other i think was a few years previous.





Just to add, no matter what equipment we use, the above two points remain valid, high elevation, steady seeing!

regards,

Tom

Edited by haytor (04/04/12 09:54 AM)


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


Reged: 01/24/12

Loc: Eastern North Carolina
Re: AP Images Taken with Original NexStar new [Re: haytor]
      #5156003 - 04/04/12 11:07 AM

Agreed on elevation. I saw better results on Mars just on this point alone a few weeks ago. I tried this as a test run, as I plan to make my best effort on Saturn around 1 am or so April 14-16 - weather permitting. Those are beautiful shots btw!

Post Extras: Print Post   Remind Me!   Notify Moderator  
haytor
Pooh-Bah


Reged: 11/29/07

Loc: Smethwick near Birmingham UK.
Re: AP Images Taken with Original NexStar new [Re: Jmel]
      #5156012 - 04/04/12 11:14 AM

I should not really have posted those images in this thread as they are not Nexstar equipment related, however the reason for posting them, was simply to illustrate my points above.

We cannot control seeing, but choosing a targets best elevation is well within our control, good luck with your plans later this month, look forward to seeing your results,

best regards,

Tom.

Edited by haytor (04/04/12 11:17 AM)


Post Extras: Print Post   Remind Me!   Notify Moderator  
Skip
Starlifter Driver
*****

Reged: 01/23/08

Loc: Fort Worth, Texas, USA
Re: AP Images Taken with Original NexStar new [Re: haytor]
      #5156137 - 04/04/12 12:57 PM

Hi Tom,

Whether you should have or not, I'm glad you did. That second image is very, very nice! Close to pro quality IMO!


Post Extras: Print Post   Remind Me!   Notify Moderator  
haytor
Pooh-Bah


Reged: 11/29/07

Loc: Smethwick near Birmingham UK.
Re: AP Images Taken with Original NexStar new [Re: Skip]
      #5157289 - 04/05/12 09:31 AM

Your too kind Skip, thanks for the comment!

regards,

Tom.


Post Extras: Print Post   Remind Me!   Notify Moderator  
ghataa
professor emeritus


Reged: 06/20/11

Loc: Central, NJ
Re: AP Images Taken with Original NexStar new [Re: haytor]
      #5157300 - 04/05/12 09:37 AM

Tom,

That second Saturn image is gorgeous!

George


Post Extras: Print Post   Remind Me!   Notify Moderator  
haytor
Pooh-Bah


Reged: 11/29/07

Loc: Smethwick near Birmingham UK.
Re: AP Images Taken with Original NexStar new [Re: ghataa]
      #5157309 - 04/05/12 09:46 AM

Thank`s George, i have done no planetary imaging for a few years now (Tel took me to the dark side), and that Saturn image still remains my best image of it to date, in fact i still have the AVI from which i processed it from and sometimes still play with it just for fun to see if there`s any more i can get out of it!

best regards,

Tom.


Post Extras: Print Post   Remind Me!   Notify Moderator  
Arthur Dent
Galactic Hitch-Hiker
*****

Reged: 10/23/08

Loc: South Yorkshire, UK
Re: AP Images Taken with Original NexStar new [Re: Skip]
      #5157345 - 04/05/12 10:12 AM

Quote:

Hi Tom,

Whether you should have or not, I'm glad you did. That second image is very, very nice! Close to pro quality IMO!



Seconded! Keep 'em coming Tom

Art


Post Extras: Print Post   Remind Me!   Notify Moderator  
haytor
Pooh-Bah


Reged: 11/29/07

Loc: Smethwick near Birmingham UK.
Re: AP Images Taken with Original NexStar new [Re: Arthur Dent]
      #5157378 - 04/05/12 10:26 AM

Cheer`s Art, your very kind too

Please, no more comments on that pic, it was only posted to make some points i wished to make about elevation and seeing conditions when shooting lunar, and planetary.

Right i`m off, before these posts get me in trouble with the mods,been there ,done that, dont want to repeat it,

regards,

Tom.


Post Extras: Print Post   Remind Me!   Notify Moderator  
Maverick199
Postmaster
*****

Reged: 02/27/11

Loc: India
Re: AP Images Taken with Original NexStar new [Re: haytor]
      #5157545 - 04/05/12 12:18 PM

Tom, that second image of Saturn is mind blowing, awesome.

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


Reged: 12/19/10

Loc: Nashville, TN USA
Re: AP Images Taken with Original NexStar new [Re: Maverick199]
      #5157550 - 04/05/12 12:21 PM

To pile on with what everyone is saying- Dang Tom, that is one awesome shot of Saturn.

What was the scope/imaging setup for that one?


Post Extras: Print Post   Remind Me!   Notify Moderator  
Pages: << 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | >> (show all)


Extra information
4 registered and 16 anonymous users are browsing this forum.

Moderator:  Brian Risley, panhard, Mitchell Duke, mayidunk 

Print Thread

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


Thread views: 56142

Jump to

CN Forums Home




Cloudy Nights Sponsor: Astronomics