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--- blog:photography:night:2021_09_16 [2021/09/17 14:37] – john
+++ blog:photography:night:2021_09_16 [2021/09/17 14:48] – [Night Sky Images - 16/09/2021] john
@@ Line 9: / Line 9: @@
   * Light cloud cover
-{{:blog:photography:night:2021_09_16:img_3155-1.jpg?700|}}
+Location:
+  * Garden
-{{:blog:photography:night:2021_09_16:img_3160.jpg?700|}}
+Software
+  * [[https://www.rawtherapee.com/|Rawtherapee]] - RAW file importing, optical correction & image processing
+  * GIMP - RAW/TIF to JPEG, cropping
-{{:blog:photography:night:2021_09_16:img_3166.jpg?700|}}
+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?600|}} {{:blog:photography:night:2021_09_16:img_3155_raw.jpg?600|}}
+{{:blog:photography:night:2021_09_16:img_3160.jpg?600|}} {{:blog:photography:night:2021_09_16:img_3160_raw.jpg?600|}}
+{{:blog:photography:night:2021_09_16:img_3166.jpg?600|}} {{:blog:photography:night:2021_09_16:img_3166_raw.jpg?600|}}