===== Night Sky Images - 16/09/2021 =====

Gear:
  * Canon EOS 200D
  * Tokina AT-X Pro SD 11-16mm f/2.8 (IF) DX
  * Tripod

Weather:
  * Light cloud cover

Location:
  * Garden

Software
  * [[https://www.rawtherapee.com/|Rawtherapee]] - RAW file importing, optical correction & image processing
  * GIMP - RAW/TIF to JPEG, cropping

The Tokina lens suffers from quite bad chromatic aberration (red/blue/green ghost images) in long exposure night images as seen in this crop from one of the images below:

{{:blog:photography:night:2021_09_16:chroma.png?400|}}

Fortunately Rawtherapee takes care of all but the most severe defects when you import it.

==== Images ====

Unaltered JPEG images on the right, processed images from the RAW files on the left:

{{:blog:photography:night:2021_09_16:img_3155-1.jpg?650|}} {{:blog:photography:night:2021_09_16:img_3155_raw.jpg?650|}}

{{:blog:photography:night:2021_09_16:img_3160.jpg?650|}} {{:blog:photography:night:2021_09_16:img_3160_raw.jpg?650|}}

{{:blog:photography:night:2021_09_16:img_3166.jpg?650|}} {{:blog:photography:night:2021_09_16:img_3166_raw.jpg?650|}}