There
are two things to think about when figuring out the correct exposure for a star
trail shot.
1.
How bright to have the star trails
2.
How bright to have the rest of the
image
The
first is controlled by the aperture and ISO settings and
the
second is controlled by the aperture, ISO and shutter speed.
My
favorite star trail images are the ones partnered with a foreground or silhouette.
And
when combined with an iconic or recognizable landscape it can give the viewer
a
reason to pause, and reflect----and see that feature in a new light….hmmm..
dark?
And
again, with the extended exposures used for night photography,
there CAN be a
lot of light!
Liberty
Cap in Yellowstone with ambient light
and star trails in opposite directions.
The
brightest light is Jupiter’s trial.
"See you out there"
~~~Bob
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