a long time ago in a galaxy far far away...

ving (David) · #1 08-03-2013, 04:17 PM

a long time ago in a galaxy far far away...

more playing around. at least this time i manages 30sec subs... better than 10secs from the last try. processing it going to be my weak point i think... once again at 440mm so cropped. its fun capturing but processing is not as much fun. how can these be processed better?

eta c patially thru clouds

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ngc 2027 and its little friend.

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ving (David) · #2 09-03-2013, 04:02 PM

tough crowd...

Ross G · #3 10-03-2013, 09:49 PM

Nice shot David.

Keep it up.

The more you shoot the better your quality will get.

A member of this forum, ATALAS (Louie) has some great Photoshop Processing Tutorials. Drop him a line.
They will give your processing the kick start it needs.

Ross.

ving (David) · #4 10-03-2013, 10:16 PM

thanks ross. I have been observing with louie (along time ago). might check him out.

h0ughy (David) · #5 10-03-2013, 11:18 PM

HEy David, why the short subs? are you autoguiding?polar aligned? you have great colour but not much neb?

ving (David) · #6 11-03-2013, 12:17 AM

no guiding houghy. not aligned properly either. i might have been able to squeeze a few more secs. and there are only 5 subs.

my biggest problem is alignment i think. get that and i'll be set.

anyhow i think i prefer this one... not so cooked looking. same data.
need new data.

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Tony_ (Tony) · #7 11-03-2013, 12:17 PM

Hi David,

If you don't have a field flattener - you can reduce the distortion around the edges by using filter - lens correction in photoshop or Gimp. It's not ideal - but it does round the stars off more.

Regards,
Tony.

ving (David) · #8 11-03-2013, 04:12 PM

barrel distortion corrector?

Tony_ (Tony) · #9 11-03-2013, 05:59 PM

It's a feature of photoshop (and Gimp). It simulates a correction to lens distortion and removes the stretching of the stars near the edges.
Its under the menu "filter" - "lens correction" then choose custom and slide the slider down to flatten the image.
I have attached an example of your image corrected.

Regards,
Tony.

ving (David) · #10 13-03-2013, 11:55 AM

thanks tony.

on a side note, had a play lastnight with longer exposures (still not aligned well) and well a 3 min exposure looks better then a stack of 30 sec ones!. i neeed to get aligned (and would love guiding of course but thats not happening yet)

Gem (Grant) · #11 13-03-2013, 06:12 PM

Eta Carina is inside our galaxy.... its not far...

ving (David) · #12 14-03-2013, 05:51 PM

cant moon walk there!