The low light, plus slight underexposure, resulted in just a touch of unwanted noise in the sky and in the shadows - where most noise shows up.
To remove the noise from the image, I used Topaz Lab's DeNoise. Until October 31, you can save 30% on Topaz DeNoise, as well as all Topaz products, by using this code upon checkout for the Topaz Labs web site: rickdenoise.
Like this image? It will be in my next app and ebook: Hey Rick! What's your f-stop. To get on the info list, shoot me an email. Read more about it here.
Speaking of Topaz, I made the image on the right using Topaz Adjust/Spicify filter. The before HDR image is on the left.
Explore the light,
P.S. Thanks to my friend Rob Dweck for taking me to this cool shooting spot!