Mickoid
10-04-2018, 12:30 AM
Just returned home from a few days away at Bright in NE Victoria. The weather was great both day and night but local burning off created some smoke haze which settled in the valleys in the evening.
Due to the short trip I only took with me my Nano Tracker and tripod. So armed with the modded Canon 550d and UV/IR cut clip in filter I managed to go out most nights. I had to be quick though, because I only had a couple of hours between sunset and moonrise to take my shots. What a difference a dark sky makes!
All accept one were taken with a canon EF 50mm lens which I got for about $50 a few years back. The close up of ngc 2070 was taken with a Tamron 500mm mirror lens. Exposures were:
LMC 17 x 1 min 50mm lens @ 1600 iso f 2.8
Milky Way 9 x 1 min 50mm lens @ 1600 iso f 2.8
Crux/Carina 1 x 1 min 50mm lens @ 1600 iso f 2.8
NGC 2070 6 x 30 secs 500mm lens @ 3200 iso f 8
Despite stopping the 50mm lens 2 stops down to f 2.8, spherical and chromatic aberrations were still an issue. What do you expect for $50?? :confuse3:
Due to the short trip I only took with me my Nano Tracker and tripod. So armed with the modded Canon 550d and UV/IR cut clip in filter I managed to go out most nights. I had to be quick though, because I only had a couple of hours between sunset and moonrise to take my shots. What a difference a dark sky makes!
All accept one were taken with a canon EF 50mm lens which I got for about $50 a few years back. The close up of ngc 2070 was taken with a Tamron 500mm mirror lens. Exposures were:
LMC 17 x 1 min 50mm lens @ 1600 iso f 2.8
Milky Way 9 x 1 min 50mm lens @ 1600 iso f 2.8
Crux/Carina 1 x 1 min 50mm lens @ 1600 iso f 2.8
NGC 2070 6 x 30 secs 500mm lens @ 3200 iso f 8
Despite stopping the 50mm lens 2 stops down to f 2.8, spherical and chromatic aberrations were still an issue. What do you expect for $50?? :confuse3: