It was a clear winter's night when I woke up to checkout the stars around midnight. The moon hovering above the magnificent Orion, I already spotted the conjunction earlier in the evening. I decided to photograph them and put out the Star Adventurer. Many an attempt previously has ben thwarted by either clouds, strong winds, cold or just pure laziness. And it's only minus 1 deg C last night.
A Star Adventurer (left) I appropriated from the manufacturer's
website.
A tracked shot at 20sec, f/5.6, Iso 100. Typically even at 8secs a 35mm would produce visable trails.
Untracked shot at 0.5secs.
A stacked of 10 shots of 0,5sec exposure each.
I was able to shoot at this exposure combination 20secs, Iso 100 with the 35mm @5,6 and 85mm @2,8 from the trackers aligned to the north star without any noticeable start trail. It would be interesting to push the exposure further to 30secs, 45secs or even 60secs ... however for that we'd have to find a light pollution free zone to avoid excessive city lights.
A tracked shot of Orion (no trail) and clouds (trailing) this time at 30secs.
A tracked shot this time at 30secs.
A stacked of 12 shots at 20secs per shot. 20secs exposure without a tracker will produced star trailing dt earth's rotation. Longer exposures at lower iso are now possible with a star tracker.
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