Palomar Observatory

Friday, August 21, 2015

Seligman train color study #2 cropped


Sanoguy said...

What exposure time did you have for this, BH. were you using a ND filter? If so, what was the factor of the filter, 2X, 6X 10X or ???

Blue Heron said...

This particular shot was taken with a 10 stop neutral density filter - f11 for 2 seconds. iso 100 at 10mm.

Anonymous said...

I like the crop. Let's see one with some zing in the clouds.