||The Orion Nebula Object RA 5:35:16 Dec -5:23:01
||40 minutes (10
X 4 minutes) for the outer areas and 400 seconds (20
X 20 seconds) for the core
||Canon Rebel XT unmodified DSLR, Canon 60Da used for core data.
||Prime focus of a 200mm SkyWatcher f/5 Newtonian
reflector with a Televu Paracor for a total focal length of
1150 mm. A 2.5 times barlow was added for the core area.
SCO, St. Croix, Nova Scotia
Calibration, stacking done in Images
Plus, noise reduction using statistical filter
applied before stretching. An arcsinH stretch was applied keeping the
histogram from clipping at the low end.
The feature mask tool was used to split the stars from the
image. The nebula layer was stretched and noise reduced again. The red
and blues were boosted using additive colour balance and masks.
Multi-scale decomposition was used to sharpen the nebula layer and the
star layer was recombined with the nebula. The whole process was
repeated on an image of the core then
a LMS combine
was used to maintain the full detail from both images. The contrast was
enhanced using a masked curve. The same statistical filter was used to
further noise reduce the image. RL deconvolution was used to sharpen
the fine detail.