Amazing Sky by Alan Dyer

Show Navigation

Image 1 of 1

Star Trails over the Old Barn (May 23, 2018).jpg

Add to Cart Add to Lightbox Download
Circumpolar star trails over a grand old barn in southern Alberta, on a fine spring night, May 23, 2018. Illumination is from the waxing gibbous Moon to the south. This is looking north to Polaris at top right. A thunderstorm is on the northern horizon with a lightning bolt as a bonus.

This is a stack of 155 exposures taken over 2 hours, stacked using the Advanced Stacker Plus actions in Photoshop, and the Ultrastreaks effect. The ground is a mean-combined stack of the last 8 exposures, to smooth noise and preserve shadows that would otherwise be blurred in the stack of 155 frames due to the Moon’s motion.

All are 20-second exposures with the Laowa 15mm lens at f/2.8 and Sony a7III at ISO 800. A special effect filter was applied to the ground with Luminar to add the vintage toning.
Copyright
© 2018 Alan Dyer
Image Size
6000x4000 / 17.9MB
www.amazingsky.photoshelter.com
Contained in galleries
Star Trails, Alberta & Saskatchewan Nightscapes
Circumpolar star trails over a grand old barn in southern Alberta, on a fine spring night, May 23, 2018. Illumination is from the waxing gibbous Moon to the south. This is looking north to Polaris at top right. A thunderstorm is on the northern horizon with a lightning bolt as a bonus. <br /> <br /> This is a stack of 155 exposures taken over 2 hours, stacked using the Advanced Stacker Plus actions in Photoshop, and the Ultrastreaks effect. The ground is a mean-combined stack of the last 8 exposures, to smooth noise and preserve shadows that would otherwise be blurred in the stack of 155 frames due to the Moon’s motion. <br /> <br /> All are 20-second exposures with the Laowa 15mm lens at f/2.8 and Sony a7III at ISO 800. A special effect filter was applied to the ground with Luminar to add the vintage toning.