MESSIER 11
Optic: Canon 400 mm f:5.6 L.
Camera: Modified Baader Canon 350D (Ha pass filter - see
here) at ISO800. Processing: Iris
software. Exposure: 40 minutes (8 x
5 minutes). Location: Pic du Midi (altitude 2860 meters, french Pyrénées).
Date: August 30.96, 2006.
Identification
Display
a medium size version - (1720 x 1160 pixels)
Display
a large size version - (3460 x 2300 pixels)