M51

[orionoffelt]

I have just got my observatory scope ready for imaging a wedge mounted Celestron 11" CPC and captured 24 x 10 minute subs on Wednesday night with a 400D modded with a UHC-S filter captured in Nebulosity and stacked in DSS and processed in PS I hope this link works on this site

Cheers

Bob

m51 The whirlpool Galaxy on Flickr - Photo Sharing!

[harry page]

Hi

Some good detail showing through and stars show decent tracking

I would say its a bit green and there is some vignetting showing

Did you use flats , or you could use gradx in photoshop or dbe in pixinsight

Harry

[Psychobilly]

Nice Data

The lens correction tool in PS is another option for a quick fix...

Its under Filter -> Distort -> Lens Correction

Peter...

[Tim]

hi Bob, thanks for posting your image. Please feel free to use the upload or attachment section of Stargazerslounge to put your pictures up, that way they can be considered in the weekly Pic of the Week roundup.

Cheers

Tim

[RikM]

Nice picture Bob.

Rik

[orionoffelt]

Thanks for the helpful replies and I am still trying to sort out the flat issue as I use a DSLR and use Nebulosity for image capture it's trying to get them as the ones I have tried have ended up with white vignetting instead of black without flats the FL with a F 6.3 reducer is still 1764 mm so I will have to try and address this problem and will try the advice you have given trying PS

Cheers

Bob

[orionoffelt]

I have removed the colour gradient which Harry has commented on and I think it has made it more natural looking see what you think

if you click the link m51 09-03-10 on Flickr - Photo Sharing!

Cheers

Bob

[harry page]

Hi Bob

Yes that is a improvement , but you have not removed the gradients and some vignetting is showing , also it is still to green

I ran your pic through Pixinsight

What do you think ( no perfect but was working on your jpeg)

Harry

[orionoffelt]

Hi Harry

Thanks for the run through Pixinsight and it does seem to help I will keep on with the adjustments and processing is an art in it's self.

Cheers

Bob

[Taff]

That's a nice capture Bob' great details there.Mark

[orionoffelt]

Thanks Mark a bit of work still to do.

Bob

[MidnightSun]

Beautiful image....