Reduced scale of the original image by a factor 0.33
CONSTELLATIONS
Orion
Camera:
Canon EOS 350D - Internal IR cut filter removed, replaced by a Schott KG3 filter.
Lens:
Canon 50 mm f/1.4 stopped to f/2.8
Exposure: 18 x 4 minutes @ ISO400. Processing:
Iris
Reduced
scale of the original image by a factor 0.33
Negative
view - Red layer only (note the Halpha Barnard's loop)
Detail
(at original scale)
Detail
- Drizzle resampling (2x)
Taurus - Perseus
Camera:
Canon EOS 350D - Internal IR cut filter removed, replaced by a Schott KG3 filter.
Lens:
Canon 50 mm f/1.4 stopped to f/2.8
Exposure: 17 x 4 minutes @ ISO400. Processing:
Iris
Detail
of Messier 45 region
Cassiopeia
Canon EOS 5D - Canon 135 mm
f:2. 4 x 180 s at ISO800. Pic du Mid, April 2006.
Perseus / Cepheus
Canon EOS 350D (with a Baader
IR-cut filter for improve red sensitivity) - Canon 135 mm f:2. 30 x
240 s at ISO800. Pic du Mid, April 2006.
Sagittarius
Canon EOS 350D (with a Baader
IR-cut filter for improve red sensitivity)
Canon 135 mm lens at full aperture
(f:2.0). Stack of 12 x 240 seconds. July 24, 2006
