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RICHARD COFER

VdB 141 Ghost Nebula

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Posts Made By: Greg Bradley

January 21, 2007 11:18 PM Forum: CCD Imaging and Processing/Deep Sky

Cocoon

Posted By Greg Bradley

A very pleasing image.

Greg.

January 21, 2007 11:19 PM Forum: CCD Imaging and Processing/Deep Sky

First Tri-color Narrowband Shot

Posted By Greg Bradley

Wow, I like it. It has a strong impact.

Greg.

January 23, 2007 06:11 AM Forum: CCD Imaging and Processing/Deep Sky

Some widefield Ha

Posted By Greg Bradley

Lovely widefield images.

Hae you had any trouble with your Baader 7nm Ha when stacking images and getting largish irregularly shaped black specks in
your images?

Mine does.

Greg.

January 24, 2007 02:32 AM Forum: CCD Imaging and Processing/Deep Sky

Head of the Jellyfish

Posted By Greg Bradley

Really lovely shot Jimmy. One of your best. You have a lovely colour balance on this object and it has a nice glow about it rather than the flat red that some Ha shots can give.

You can also add a bit of the Ha to the blue channel (about 15%).

That blue area looks good. I think a lot of nebulas have these O111 type blue areas that often get missed. The Lagoon for example has a lot of it surrounding it so does the Trifid.

Greg.

January 25, 2007 02:29 PM Forum: CCD Imaging and Processing/Deep Sky

The Rosette Nebula in Monoceros (H alpha)

Posted By Greg Bradley

Hi Luis,

Good effort. You are doing it tough doing 60 second exposures. Your camera has an ideal exposure length of approx 3.4 minutes.
When you do 60 sec shots the exposure does not get much above the read noise (the noise created by the electronics reading the chip's image).

So you really need to work out how to use the autoguider it has. Its confusing at first but becomes easy after a few times working it.

Greg.

January 27, 2007 12:22 PM Forum: CCD Imaging and Processing/Deep Sky

Comet Mc Naught

Posted By Greg Bradley

And another one, 19 x 20 seconds, modified Canon 20D Nikkor 50mm F1.8 lens.

http://www.pbase.com/image/73600322

Greg.

January 27, 2007 10:20 PM Forum: CCD Imaging and Processing/Deep Sky

IC 349

Posted By Greg Bradley

Cool shot!

Greg.

January 29, 2007 11:38 AM Forum: CCD Imaging and Processing/Deep Sky

June 2, 2007 02:57 AM Forum: CCD Imaging and Processing/Deep Sky

NGC7000 15" Astrograph

Posted By Greg Bradley

Very nice indeed!

Greg.

June 6, 2007 10:05 PM Forum: CCD Imaging and Processing/Deep Sky

M81,82 rehashed again!

Posted By Greg Bradley

Its very nice. How do you get your TEC down F4.7? That is very fast.

Greg.