simon fedida
M6 butterfly cluster_sag5_090623-12_144x0p80s_dk_hg3_hpm1
Messier 6 Butterfly Cluster - an open cluster of stars just north of the scorpion's tail.
144 x 0.8 second exposures
Camera was a 1004x-JG modified video camera on a fixed tripod and ball head. 135mm F2.8 M42 screw thread lens stopped to F4. No filters. Camera in gamma mode 1 (highest internal DSP gamma stretching) and gain 75%.
Stacked and gamma stretched in Registax 5, high pass masking in
Photoshop Elements.
M6 butterfly cluster_sag5_090623-12_144x0p80s_dk_hg3_hpm1
Messier 6 Butterfly Cluster - an open cluster of stars just north of the scorpion's tail.
144 x 0.8 second exposures
Camera was a 1004x-JG modified video camera on a fixed tripod and ball head. 135mm F2.8 M42 screw thread lens stopped to F4. No filters. Camera in gamma mode 1 (highest internal DSP gamma stretching) and gain 75%.
Stacked and gamma stretched in Registax 5, high pass masking in
Photoshop Elements.