Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

sgl_imaging_challenge_banner_beauty_night_skies.thumb.jpg.2711ade15e31d01524e7dc52d15c4217.jpg

Jgw

Once again M42..Please give me some advice.

Recommended Posts

Hallo,l

After a few clear nights over here in Hamburg, I decided to have a go at M42. I,am am having difficulty with light polution & ofcourse the lights from the Airport, I would like to pull the plug, but I think i would have some trouble..

Anyway my processing is not the best, so please have a go at this Photo.. would be glad for some help..

Thanks John

M42.TIF

Share this post


Link to post
Share on other sites

There dose seem to be quite a bit of detail in your image waiting to be pulled out.

The edit below is the result of using just Levels,Saturation,Dodge and Burn tools in Photoshop.......needs a little refining but shows promise.

post-849-0-73434600-1363284500_thumb.png

Share this post


Link to post
Share on other sites

Hello Nebula,

The TIF file is simply too small to notice any detail. However I have still tried to extract some data out of it. The stars are saturated, but my purpose was getting more detail in the nebula. It was a quick process using only levels and curves. The running man has just about appeared. I did not ue any burn tool because the image looks photoshopped if the burn tool is used. However that is a personal choice. I have finished the image with an unsharp mask and a bit of a gaussian blur.

Regards,

Sathya

M42.TIF

Share this post


Link to post
Share on other sites

Hallo,l

After a few clear nights over here in Hamburg, I decided to have a go at M42. I,am am having difficulty with light polution & ofcourse the lights from the Airport, I would like to pull the plug, but I think i would have some trouble..

Anyway my processing is not the best, so please have a go at this Photo.. would be glad for some help..

Thanks John

Hi John,

I am only a novice and as yet have not ddone the M42 yet but I think you have something there in the capture. I have done a quick multiple level, curve and saturation adjustment in CS2 but i am sure if you took your time you could extract more data out of this file. Hope you didn't mind me processing your capture. BTW I too live 5 minutes away from the airport and you have my heartfelt sympathy.

Regards,

A.G

post-28808-0-07754400-1363390703_thumb.j

Share this post


Link to post
Share on other sites

Hi John,

you have som nice data in there! I had a quick session in photoshop and this is what I could do. I am not a pro either, but I think it´s quite nice. If you get some more subs it will be even better.

Have a nice day!

post-26311-0-94494300-1363419116_thumb.p

  • Like 1

Share this post


Link to post
Share on other sites

Hi Folks, sorry I did not reply quicker.... too much work

wow I,am impressed with some of the results... i now think i need a crash coutse on photoshop, I did not realise how much detail was in there...

many thanks for your help..

greeting... John

Share this post


Link to post
Share on other sites

I forgot to mention, The original Tif was over 20Mbm, since I could only load under 1 Mb...

If anybody could tell me how to load the full 20Mb , you could have a go at the whole image...

Cheers John..

Share this post


Link to post
Share on other sites

COuld you pop the file in Dropbox and share?

Cheers

Jamie

Share this post


Link to post
Share on other sites

Ok, I will have a go...

Never done this before, so have patience..

Thanks John

Share this post


Link to post
Share on other sites

Hi John

Just to let you know if you were waiting for a response that the link you posted doesn't work. It just takes me to my 'home' dropbox account

Not sure what computer you are using but on a mac you just install the dropbox client on your computer, put your file in the public folder and it uploads automatically

When its done click on the dropbox folder and go to the public folder then right click your file which should have a green tick next to it, selecting dropbox>copy public link from the drop down menu

then just paste the public link in your message

Share this post


Link to post
Share on other sites

Hi John

Yes these cloud things can be confusing if you aren't familiar with them but you're nearly there, ....

Got the message "Nothing Here. The file you are looking for has been deleted or moved"

Can you see the file in your dropbox folder ?

Share this post


Link to post
Share on other sites

At last !

Hope it was worth the effort...

I have been trying to improve my images, slowly getting there..

thanks for patience & help..

Clear sky, s

John

Share this post


Link to post
Share on other sites

Hi

I had a quick go but there was quite a lot of gradient on the image which was difficult to reduce

perhaps you need to stack a few more subs and some light frames to reduce this

post-9935-0-43439600-1364742320_thumb.pn

Share this post


Link to post
Share on other sites

I gave your image a go as well. For sure quite a bit of data in there to be worked with. :)

Had to work a little bit on your gradient, and also a bit on the noise (i think i ended up washing it out a bit much).

You have some dust on your sensor, so taking flat frames will help remove those as well as It will also more or less fix your gradient problem.

I'm for sure not very good at processing yet though, so someone else more experienced will probably give you a lot better final result with the same data.

But for sure, you have a lot of data allready, so don't give up! :)

Edit: forgot to crop of edges, cropped a tiiiiny bit off now. :)

post-9520-0-26069400-1364761335_thumb.pn

Edited by Jannis

Share this post


Link to post
Share on other sites

Hallo again..

I can see that you all have been busy, really nice processing there, I also noticed that there is a lot of gradient there, I had taken 4 subs each 300 sek, and 6 ,150 sek, so I know now roughly how long I need to Image..

As I mentioned before, the Airports lights are a pest, so I used a Neodyminum filter to cut off some of the light..I guess that is also causing the round design on the Image. I will have to sort that one out....

my sensor will have to be cleaned I know, I have not tryed taking flats before, so off into the unknown..

I,am planning to make a new cooled camera, should help a lot.. ( I,am working in a maschine shop here, Cnc Lathes & all that stuff) so the plans are on the way..

Anyway many thanks for your help...when I take more, I know where to post them..

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.