mrova wrote:
I went camping this past weekend at the Chickahominy Riverfront Park. Nice place between Richmond & Williamsburg, VA.
This was taken down on a dock late one evening looking back to the west toward Richmond. Obviously enhanced a bit, but it shows the importance of finding that dark place for night shots. The download will show lots more stars...
Taken with the Canon 7d mkII and Tokina 11-16 2.8, PP in LR4.
Very nice image.
For educational purposes, others may be interested since most lenses suffer from some kind of distortion, if you download and magnify, you can see some astigmatism. Look at the upper right corner. Different lenses have more or less of this kind of distortion. When I use my 20mm on a full frame camera, I see this too.
Here is an article one kind of distortion. Stopping down can minimize this one to some extent. But that rather defeats the intent of maximizing the light of stars.
I would ignore it and continue with your pictures. This one looks great.