Horsehead HA/RGB

[Phil.H]

Took this photo using my STL-11000M on a Televue NP101mm F/5.4
and a G11 mount HA30 RGB 30/30/30. Hope you like
Phil

[Radar]

Great shot Phil. I don't know much about ccd work. What does the HA exposure do? I thought you just needed to do RGB exposures. And maybe a Luminance exposure for brightness. :pipethinker:

[Phil.H]

The HA brings out fine detail in the neb. Which RGB wont pick up. Thanks for the reply.
Phil

[AstroTasmania]

Hi Phil

Nice wide field image, H-alpha is becoming a very popular imaging technique in its own right. As so much is Hydrogen it makes good sense to include H-alpha. It would be interesting for the group to add just the H-alpha image as a separate image without the RGB component, next to your colour image.

Very useful technique for imaging in bright Moonlight.

Clear skies...

[Radar]

I can see what he means though by brining out faint detail. There does seem to be detail there that I have never seen before.

[phoenix]

Great photo Phil.
Love the details, like to see more! :thumbsupmate:

[Mick]

Wow, that's awesome.:thumbsupmate:

[seeker372011]

very nice shot Phil, even though the HH is facing backwards :Chessy_Smile:

In Photoshop how does one go about combining L ( say Halpha or other Luminance data) with RGB data?

I have some data that I would like to combine but am not sure exactly how, hence the question

Narayan

[Phil.H]

What i do is combine the RGB in Maxlin and leave the HA copy the file then
convert then to 16bit tiff. I then open the combine RGB and the HA in photoshop do some level and cuves and what ever needs to be done. Then i copy the HA and paste in onto the RGB. You have to change it to 8bit bata
then you do your final colour level and so on.
Phil:thumbsupmate:

[Tenacious Del]

That Horse Head shot is amazing. There is some great detail there. :thumbsupmate:

[AstroTasmania]

Hello Phil

Here is a link to a friend of mine in the USA, a prolific imager, this is just a shot of the same region as your image, but just the H-alpha component.

http://www.budguinn.com/gallery2/v/ha/IC-434-ha-1-17-07-framed.jpg.html

A very informative image.

Clear skies...

[wakaleo]

Beautiful shot Phil. Keep 'em comin'!

[Phil.H]

this is the HA i used for the photo one shot 30mins dark sub.

[AstroTasmania]

Hi Phil,

Beautiful image, would you mind posting the specs, optics, camera, filter etc used. Yours is a traditional cooled camera, what is the CCD size?

This shot is enough to make my mouth water. I have attached a link here for another similar shot from a group I belong to, taken with a modified DSLR. It is a valuable exercise to compare the same field with different equipment.

http://digitalastro.skyinsight.net/gallery/Open-Challenge-Jan-07/CV_CombineFilesMed_9_L1

I think it helps newcomers to astro imaging to see a good range of equipment and the images obtainable from them.

Clear skies...

[Phil.H]

the photo was taken with a Sbig STL-11000M cooled CCD camera Telescope was a Televue NP101mm F/5.4 on G11 mount the photo has by croped as this camera is 11mege pix. the filter was a HA custom scientific

[Jimbot]

That is a lovely shot of the nebula. Thank you for sharing.

Jim :welldone:

[Radar]

That HA image is amazing just by itself. Love it. :thumbsupmate: