Arc of the Blue Sky

On the day before the Star Circle Academy workshop began I shot with some friends and early workshop arrivals in the Alabama Hills. It was a clear night, but the wind was brisk. After I found a sheltered spot I was able to shoot a sequence with no problems.

This image is from a position very close to that of where I shot from in Alabama Hills Star Trails, but looking up and north rather than out and south.

To make this image I used my 10.5mm digital fisheye and used my intervalometer to shoot 45 exposures at 90 seconds each (aggregate exposure time a bit over an hour). Each exposure was made at f/3.5 and ISO 400. I stacked the exposures together using the extended version of Photoshop’s Statistics script, with the stack mode set to Maximum. The moon light was bright enough that I didn’t have to worry about light painting the foreground (or shooting a longer exposure for the foreground).

This entry was posted in Digital Night, Photography.

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