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Old 14-05-2014, 08:37 AM
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jsmoraes (Jorge)
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Join Date: Apr 2012
Location: Saquarema, RJ , Brazil
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Canon T3 - H-alphaRGB - First try

Full Moon, high humidity with a faint fog.

Well, let me try to explain what was done.

1. First, 15 subs RGB, ISO 800 and filter Skyglow with 240 seconds.

Image of file RAW CR2 - photo 1

Image from stacking in DSS - photo 2

note: Stack in DSS disappeared with original colors informations.

Image of HDR process in Photoshop CS3 - photo 3

2. Then, 7 subs filter H-alpha 12 nm, sensor RGB Canon T3, ISO 1600 with 240 seconds.

Image of file RAW CR2 - photo 4

Image from stacking in DSS - photo 5

3. I did two different process with H-alpha in HDR of Photoshop CS3 to be used in global process.

Image of H-alpha with HDR wide field - photo 6

Image of H-alpha with HDR central field - photo 7

4. Copied the Red channel of light image RGB and done superposition of images H-alpha:

layer 2 - image Halfa wide field - 40 % opacity
layer 1 - image Halfa center field - 50% opacity
background - light image RGB - 100% opacity

5. Applied only curves, bright, contrast and to reduce of presence of stars minimum filter.

Final image - photo 8

note: It was not applied any other filter or process. My intention was to see the performance of H-alpha filter with unmodified Canon.

More tests wil be done.
Attached Thumbnails
Click for full-size image (Light_IMG_0032-cr2.jpg)
157.2 KB41 views
Click for full-size image (DSS-Autosave001-original.jpg)
123.8 KB33 views
Click for full-size image (DSS-Autosave001HDRCS3-.jpg)
168.0 KB31 views
Click for full-size image (Halfa-IMG_0017-cr2.jpg)
127.4 KB36 views
Click for full-size image (DS-Halfa-Autosave001-original.jpg)
121.7 KB26 views
Click for full-size image (halfa-red-geral.jpg)
158.4 KB30 views
Click for full-size image (halfa-red-central.jpg)
76.1 KB26 views
Click for full-size image (etaHaRGB-140512-cs3-1k.jpg)
147.0 KB64 views
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