开云体育

Hi all,

This is my first shot after modifying the RA axis on my G11. The mod appears
to have accomplished the objective. The stars are much rounder and better
defined than before the mod. (See:
)

I pick up a copy of Photoshop the other day and since it was cloudy last
night, I finally tried my hand at processing a color image. (I've had a CFW8
attached to my CCD camera for years, but never really used it until just
recently.) Have a look:



It came out reasonably well for a first attempt, but may be a little too
'colorful'. I didn't really play much with the color balance other than
setting the ratios during the combine in MaxIm. Most of the Photoshop
processing was to bring out local detail by adjusting local histogram specs.
I particularly like how the blue/red nebulosity shows up in the dust lanes,
but don't know why it is so pronounced here. Most of the M31 images I have
seen have little color in the lanes.

Neal

That's outstanding, Neal, really beautiful. The registration looks good,
but you can probably do better in a program such as Maxim that lets you do
"sub-pixel" registration.

Paul Sterngold

--- Neal Barry <nbarry@...> wrote:

Hi all,

This is my first shot after modifying the RA axis on my G11. The mod
appears
to have accomplished the objective. The stars are much rounder and better
defined than before the mod. (See:
)

I pick up a copy of Photoshop the other day and since it was cloudy last
night, I finally tried my hand at processing a color image. (I've had a
CFW8
attached to my CCD camera for years, but never really used it until just
recently.) Have a look:



It came out reasonably well for a first attempt, but may be a little too
'colorful'. I didn't really play much with the color balance other than
setting the ratios during the combine in MaxIm. Most of the Photoshop
processing was to bring out local detail by adjusting local histogram
specs.
I particularly like how the blue/red nebulosity shows up in the dust
lanes,
but don't know why it is so pronounced here. Most of the M31 images I
have
seen have little color in the lanes.

Neal

__________________________________________________
Do You Yahoo!?
Yahoo! Mail - Free email you can access from anywhere!

Very nice!...

Herm

"Neal Barry" <nbarry@...> wrote:

I pick up a copy of Photoshop the other day and since it was cloudy last
night, I finally tried my hand at processing a color image. (I've had a CFW8
attached to my CCD camera for years, but never really used it until just
recently.) Have a look:

Astropics

Rogelio,

Please don't be overly impressed with the modified G11 mount at this point
(it may be tracking quite well, but I need to take higher mag images to be
sure.) The image res in the picture is only about 3.5 arc seconds per pixel
with a TV101 and ST8E.

I'm also guiding (actually, an SBIG STV and SW Bisque's 'Orchestrate' is
doing the hard work - I'm catching a few Z's on a cot) with a 'side-saddled'
TeleVue Pronto and STV running a fairly fast correction rate of 1.0 seconds.
That would eliminate a world of sins on my stacked 5min exposures <g>.

My longer FL scopes are too heavy for a G11, so I'll mount up an ancient
Celestron C8 (1981 vintage- orange tube) and see what gives with a .7 arc
second per pixel res.

Bye for now,
Neal

Neal, I printed your image and it looks photographic (no pixelation) at the 8*10
print size, that st8 rocks!..

"Neal Barry" <nbarry@...> wrote:

Hi all,

This is my first shot after modifying the RA axis on my G11. The mod appears
to have accomplished the objective. The stars are much rounder and better
defined than before the mod. (See:
)

Herm
Astropics