Much improved Orion

[neil groves]

I went out again last night and did Orion again, this time 68 subs at 7 secs each and processed in DSS, then photoshop. I am

definately a fan of DSS now despite the extensive processing time as i have way more colour in this version, still not happy with the uneven sky

but not experienced enough yet to know how to correct, as far as i could tell there were no clouds so i don't know why i have a blotchy

redness?

Neil.

[neil groves]

ok i get it, i need lots and lots of processing practice lol

Just spent some time on this image and am finding out there are SO many variables and i can understand now

how people can spend hours extracting information and refining an image.

Neil.

[neil groves]

Another thought.....would i get better results if i went to the time and trouble to make dark subs and flats? does it make THAT much difference?

Neil.

[SniffTheGlove]

Another thought.....would i get better results if i went to the time and trouble to make dark subs and flats? does it make THAT much difference?

Neil.

Yes it does make a big difference.

As you have Photoshop look for Annies Astro Actions, they are cheap and takes you through some of the processing steps. http://www.eprisephoto.com/astro-actions

[neil groves]

What i think i need more than anything right now is to take out the vignetting, so that would be 'flat' subs i need right?

Neil.

[tdmodels]

Hi Neil, you are correct, flats are what you want to remove vignetting.  Very easy to do, just don't adjust focus on the camera and make sure you keep the same f ratio etc.  Take a few exposures on auto setting of a uniform dawn sky or white laptop screen.  DSS will do the rest.



 

[neil groves]

Well played with curves some more and managed to tune out some more of the red light pollution that was plaguing me, i guess this is as good as this image is going to get.

note to self: wait till target is higher in the sky!

Neil.

[SniffTheGlove]

Doing flats with a laptop/notebook screen works a treat though can be a bit difficult at times especially if you do this at the end of a night

I brought a cheap EL Panel from ebay

http://www.ebay.com/itm/EL-Lamp-electroluminescent-panel-backlight-led-alternative-A5-White-/231103018057?pt=LH_DefaultDomain_0&hash=item35ced03449

and the inverter

http://www.ebay.com/itm/12V-DC-to-AC-inverter-for-EL-Lamp-Foil-wire-electroluminescent-15m-/231014270837?pt=LH_DefaultDomain_0&hash=item35c9860775

As I just do widefield with lenes I put the EL Panel onto a bracket that sits easily in front of the lens and then plug the panel into my 12v supply and then shoot as many flats as I can no matter the time of night