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Captured by
Lawrence Parchman

Sculptor Galaxy (NGC 253)

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Posts Made By: Gianluca Valentini

August 28, 2006 01:47 PM Forum: CCD Imaging and Processing/Solar System

A little theory: Dawes, Nyquist and optimal F rati

Posted By Gianluca Valentini
Well guys,

I believe that the issue I raised has been well discussed and clarified and I thank each one of you guys for your contribution.

I believe that the mortal blow was inflicted by the consideration that Dawes limit isn't really pertinent to solar system objects, but to point-like light sources (i.e. stars), so all deductions derived from it should be reconsidered in the case of extended bright objects.

I'm happy because it seems that I will not have to downsize my images grin

Ciao all

Luca


September 19, 2006 03:37 PM Forum: CCD Imaging and Processing/Solar System

Winter Star Party?? Anyone going??

Posted By Gianluca Valentini
Hello Mike,

I may be joining the Italian Expedition to the WSP. I truly hope to make it this year and I hope to meet a lot of you guys there!

Ciao Mike

Luca

September 25, 2006 12:07 PM Forum: CCD Imaging and Processing/Deep Sky

One-shot color image processing: HELP!!!

Posted By Gianluca Valentini
Hello everyone. Thanks for your help guys: I believe that I found a way around the problem. At least it looks like it from the picture attached, which is not great, but at least it doesn't show the same speckles grin

Thanks again

Ciao
Luca

September 26, 2006 03:41 PM Forum: CCD Imaging and Processing/Deep Sky

One-shot color image processing: HELP!!!

Posted By Gianluca Valentini
Hello everyone!

Here is my first DSO image ever grin grin
I am quite satisfied of the final outcome, although it is far from being a good result in the standards of this forum.
Please feel free to comment and suggest.

Sum of 4 20 minute shots with Tak 102 @F6 and ST-2000XCM. I hope to be able to get some more data as soon as the weather gets any better (my area is currently getting FLOODS :C ).

Ciao all

Luca

September 26, 2006 03:46 PM Forum: CCD Imaging and Processing/Deep Sky

Millions of suns

Posted By Gianluca Valentini
Beautiful shot Jason!
The fact that you use the same camera I have makes me hope well for the future. Now I only have to learn how to use it wink

Ciao
Luca

September 26, 2006 04:43 PM Forum: CCD Imaging and Processing/Deep Sky

M33

Posted By Gianluca Valentini
Sweet image Jason!

You've been able to capture the dust within the spiral and also to keep the core from overexposure: congratulation on both the capture and the processing!

Ciao
Luca

September 26, 2006 04:52 PM Forum: CCD Imaging and Processing/Solar System

The Sun in H-alpha

Posted By Gianluca Valentini
Hello Paul and welcome to the club wink Nice first man!

However, the glare is a problem with all SM filters: I found that the use of the Powermate barlows improves the quality of the images, compared to other barlows, even the high quality ones (I also have and use the fantastic Baader FFC, which is great for anything but the sun!).

Ciao Paul and keep on posting images since it may be the only way I can see the sun in the future days :C

Ciao
Luca

September 27, 2006 09:42 AM Forum: CCD Imaging and Processing/Deep Sky

One-shot color image processing: HELP!!!

Posted By Gianluca Valentini
Well thank you Tyler, Ivan and Louie grin

I'm sure that, if you keep on helping me, I'll be able to meet the very high standards set by all of you guys! Sooner or later wink

Ciao all

Luca 8)

September 28, 2006 02:56 PM Forum: CCD Imaging and Processing/Deep Sky

IC 405 - The Flaming Star - from Utah

Posted By Gianluca Valentini
VEEEEERY nice Tyler!

I have to get the gist of deep sky imaging, but you gotta love images like this one!

Thanks for sharing it.

Luca

October 1, 2006 01:06 AM Forum: CCD Imaging and Processing/Deep Sky

2nd attempt at M33

Posted By Gianluca Valentini
... I thought about shooting M42 that was just rising at 3 a.m.

A picture of M42 is one of the reasons I got involved with this wonderful hobby of ours, but I never got around to really try to shoot my own version. It seems to be a truly tough cookie this guy.

This is a single 20 minute exposure. I have some very short exposure that I wanted to use to replace the trapezium area, but I did not get around to do it and.... I still have to realize how to do it sad

However, it was processed in PS with levels, curves and a bit of unsharp mask.

Ciao
Luca

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