The Orion Constellation - Take Two
Feb 23, 2017 09:25:42 #
Following on from my efforts earlier in the year of the Orion Constellation http://www.uglyhedgehog.com/t-436941-1.html, I had to give this photograph another go.
This time I selected my Nikon 105mm F2.8 Micro instead of the 50mm.
Upon the 105mm I placed my recently purchased Hoya Red Intensifier.
Settings & Equipment:
Nikon D90 (unmodified)
Nikon 105mm F2.8 with Red Intensifier filter
ISO 800
F3.0
400 light frames @ 45 s
200 dark frames (same settings as above)
Tracked not guided on the Sky watcher Star Adventurer.
Processing:
Clarkson ARC calibration to light frames (Lens profile, CA correction, black point setting & a slight luminance noise adjustment)
The lights & darks were then taken to Sequator for stacking, (auto brightness, LP uneven, enhance star colour 50%)
The stacked Tiff file was then taken to CS6.
In CS6 I adopted some of Clarkson's recommendations, mixed with my own adjustments to curves & levels.
During the million or so micro incremental adjustments I used an anchored curve stretch. This type of stretch retained the star colour, avoided star bloating & clipping to the high channels, but raised the mid & lower channels.
Once I was happy with the curve & level stretches I applied a luminance layer constructed from the RGB file as follows:
Duplicate image, desaturate, lower white level slightly in curves, image set to luminance & merge down.
The final adjustments to the final photograph were performed using Carboni actions (Local Enhancement, increase star colour, make stars smaller & deep space noise removal)
So here we are with my second take of the Orion Constellation.
This time I selected my Nikon 105mm F2.8 Micro instead of the 50mm.
Upon the 105mm I placed my recently purchased Hoya Red Intensifier.
Settings & Equipment:
Nikon D90 (unmodified)
Nikon 105mm F2.8 with Red Intensifier filter
ISO 800
F3.0
400 light frames @ 45 s
200 dark frames (same settings as above)
Tracked not guided on the Sky watcher Star Adventurer.
Processing:
Clarkson ARC calibration to light frames (Lens profile, CA correction, black point setting & a slight luminance noise adjustment)
The lights & darks were then taken to Sequator for stacking, (auto brightness, LP uneven, enhance star colour 50%)
The stacked Tiff file was then taken to CS6.
In CS6 I adopted some of Clarkson's recommendations, mixed with my own adjustments to curves & levels.
During the million or so micro incremental adjustments I used an anchored curve stretch. This type of stretch retained the star colour, avoided star bloating & clipping to the high channels, but raised the mid & lower channels.
Once I was happy with the curve & level stretches I applied a luminance layer constructed from the RGB file as follows:
Duplicate image, desaturate, lower white level slightly in curves, image set to luminance & merge down.
The final adjustments to the final photograph were performed using Carboni actions (Local Enhancement, increase star colour, make stars smaller & deep space noise removal)
So here we are with my second take of the Orion Constellation.
Feb 23, 2017 09:37:50 #
Feb 23, 2017 09:42:11 #
lsaguy wrote:
I have so far to go. I am not worthy. Absolutely beautiful.
Thank you. AP is always a learning curve & we all have to start somewhere.
Without the help from the guys here I would never be where I am now.
Practice & patience
regards Marc
Feb 23, 2017 12:28:18 #
Marc G wrote:
Following on from my efforts earlier in the year o... (show quote)
Great job Marc. I love the Red Intensifier filter.
Craig
Feb 23, 2017 12:57:57 #
CraigFair wrote:
Great job Marc. I love the Red Intensifier filter.
Craig
Craig
Thanks Craig. The filter certainly helps with LP & Ha
Feb 23, 2017 16:35:00 #
Wow Marc! That's beautiful!
Did you count all the stars?
Holy Mackerel!
I'm keeping my telescope inside today. I'm trying to fool the skies.
I set it out yesterday morning and a personal rainstorm blew up in the afternoon.
Did you count all the stars?
Holy Mackerel!
I'm keeping my telescope inside today. I'm trying to fool the skies.
I set it out yesterday morning and a personal rainstorm blew up in the afternoon.
Feb 23, 2017 16:55:03 #
SonnyE wrote:
Wow Marc! That's beautiful!
Did you count all the stars?
Holy Mackerel!
I'm keeping my telescope inside today. I'm trying to fool the skies.
I set it out yesterday morning and a personal rainstorm blew up in the afternoon.
Did you count all the stars?
Holy Mackerel!
I'm keeping my telescope inside today. I'm trying to fool the skies.
I set it out yesterday morning and a personal rainstorm blew up in the afternoon.
Thanks Sonny. Zillions of stars.
Weather been up n down here too.
Feb 23, 2017 18:43:25 #
Marc G wrote:
Thanks Sonny. Zillions of stars.
Weather been up n down here too.
Weather been up n down here too.
Marc as you can tell by all of Sonny's rants we are having a rare clear night here in So Cal. And Moonless too boot.
Craig
Feb 23, 2017 19:42:46 #
CraigFair wrote:
Marc as you can tell by all of Sonny's rants we are having a rare clear night here in So Cal. And Moonless too boot.
Craig
Craig
Good luck if you are out under the stars
Feb 24, 2017 02:23:06 #
Feb 25, 2017 13:00:58 #
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