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Forums > Back > next PZ lens test report - Sigma 14mm f/1.8 DG HSM ART
davidmanze
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#57
12-11-2017, 11:10 AM
     You asked what subject is on a flat plane to the corners.....astro photography is just that!

  

  I think you will find the most of the star deformations are caused by the maximum exposure of around 20 seconds, 10-15 secs is the point at which stars start to make trails ....which are always worse in the corners.

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Messages In This Thread
next PZ lens test report - Sigma 14mm f/1.8 DG HSM ART - by davidmanze - 11-19-2017, 10:25 AM
next PZ lens test report - Sigma 14mm f/1.8 DG HSM ART - by davidmanze - 11-21-2017, 03:29 PM
next PZ lens test report - Sigma 14mm f/1.8 DG HSM ART - by davidmanze - 11-22-2017, 04:45 PM
next PZ lens test report - Sigma 14mm f/1.8 DG HSM ART - by davidmanze - 12-11-2017, 08:10 AM
next PZ lens test report - Sigma 14mm f/1.8 DG HSM ART - by davidmanze - 12-11-2017, 11:10 AM

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