Horsehead nebula

[tornado33]

Howdy.
I had a go at reprocessing some horsehead pics taken in the first week of getting my new camera.
5 x 2 min ISO 1600, modded 350D, Baader UHCS filter, 10 inch F5.6 Newt. No flats were taken at the time, so I manually flattened the field in Photoshop.
Scott

[ballaratdragons]

Absolutely excellent pic of a very tough object Scott! Nice work.

Strange set of diffraction spikes!

[Starcrazzy]

lovely...what are these flats i hear som much bout...sorry if it a sily question...agin...nice shot...did you see the horse through an eyepiece??

[RB]

Another beauty Scott.

Excellent.

[EzyStyles]

Nice shot Scott! absolutely awesome.

[tornado33]

Thanks everyone.
The odd diffraction spikes are caused by part of the pick off prism assembly of the off axis guider protruding into the light path, a trade off with that and getting the prism and camera as close to the secondary as possible.

Flat fields are shots of a nice diffuse white object like a wall of large piece of cardboard that can be used in software to remove vignetting and other blemishes, in this case I didnt use a flat as I need to come up with a better way of taking them, putting paper over the end of the scope doesnt work as I get odd shadows that dont appear in the light images. This looks to be a good way of taking good flats.
http://www.ghg.net/cshaw/flat.htm
Scott

[PhotonCollector]

Hi Scott,

yeah, I agree, another top image.

[ving]

hi scott, great shot :)

whats the oval to the left of alnitak?