ASTRO: Crisp does one like everyone else does...

I had to try an HaRGB shot

This is 4 hours of Halpha combined with 1 hour each of RGB shot under a near
full moon at the ranch.

I began the halpha shortly after it rose and finished the blue just before
sunrise. It is nice to have decent horizons so I can sit on an object all
night

the Red was Red + halpha and blue was Blue + 20% * Halpha (to simulate the
Hbeta)

Richard Crisp wrote:

I had to try an HaRGB shot

This is 4 hours of Halpha combined with 1 hour each of RGB shot under a near
full moon at the ranch.

I began the halpha shortly after it rose and finished the blue just before
sunrise. It is nice to have decent horizons so I can sit on an object all
night

the Red was Red + halpha and blue was Blue + 20% * Halpha (to simulate the
Hbeta)


Beautiful.

You do a better job of combining HA and RGB than I can manage. I end up
with odd colored stars no matter what I do and yes I do the 20% Halpha
in the blue.

This your 300mm lens?

You seen Halla's super deep shot of this area? Runs from west of the
Rosette to past the Cone. He used a 165mm lens and a two frame mosaic.

http://astrophoto.com/RoseCone.htm

You can spend lots of nights in this area.

Rick
--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".

Rick Johnson wrote:


This your 300mm lens?


Dummy just looked at the image name. Yes it was done with the 300mm
lens. I gotta get some sleep.

Rick

Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".

Very nice Richard, maybe a little more on blue.

Also the sh2-240 posted later is very nice , i like it.

Regards


--
--
Fabio Acquarone
Website: http://www.fabioh2o.it
Email :

"Richard Crisp" ha scritto nel messaggio
. net...
I had to try an HaRGB shot

This is 4 hours of Halpha combined with 1 hour each of RGB shot under a
near full moon at the ranch.

I began the halpha shortly after it rose and finished the blue just before
sunrise. It is nice to have decent horizons so I can sit on an object all
night

the Red was Red + halpha and blue was Blue + 20% * Halpha (to simulate the
Hbeta)

Nice image Richard. The colour version is not as deep as the Halpha you
posted earlier, so I prefer the Halpha-only version.

Stefan

"Richard Crisp" schrieb im Newsbeitrag
. net...
I had to try an HaRGB shot

This is 4 hours of Halpha combined with 1 hour each of RGB shot under a
near full moon at the ranch.

I began the halpha shortly after it rose and finished the blue just before
sunrise. It is nice to have decent horizons so I can sit on an object all
night

the Red was Red + halpha and blue was Blue + 20% * Halpha (to simulate the
Hbeta)

that was a processing tradeoff:

there were some pretty severe gradients in the green and blue channels so I
had to tone down the intensity to keep that manageable

I just did the "red" thing because some people like red nebulae and I seldom
do them that way in my backyard due to light pollution etc.

the moon had things pretty bright but the air is clearer out in the Mariposa
hills than in the smoggy bay area. Plus being at 1800' versus 425' also is
helpful

I did notice less total extinction there than in town.
rdc


"Stefan Lilge" wrote in message
...
Nice image Richard. The colour version is not as deep as the Halpha you
posted earlier, so I prefer the Halpha-only version.

Stefan

"Richard Crisp" schrieb im Newsbeitrag
. net...
I had to try an HaRGB shot

This is 4 hours of Halpha combined with 1 hour each of RGB shot under a
near full moon at the ranch.

I began the halpha shortly after it rose and finished the blue just
before sunrise. It is nice to have decent horizons so I can sit on an
object all night

the Red was Red + halpha and blue was Blue + 20% * Halpha (to simulate
the Hbeta)

"Richard Crisp" wrote

I had to try an HaRGB shot
..............

Beautiful picture Richard!

George N