On Apr 22, 2018, Savageduck wrote
(in iganews.com):

On Apr 22, 2018, Peter Jason wrote
(in ):

Wide-angle photos have a confusing number of lines.

Which one should be used for straightening the image?

One in the very center perhaps?

Which edition of Photoshop are you using?
Not all editions have all the correction tools that later editions have.

Are you working with RAW or JPEG files?
Some corrections are better made with RAW files, and some tools might not be
available to JPEGs.

There are several methods of correcting wide-angle lens distortion with
Photoshop and/or Lightroom.

Sometimes, if you are lucky, just having a correct lens profile can correct
non-extreme distortion provided the FL is not too extreme.

If you are processing RAW files then you would start with ACR or Lightroom,
and use the Lens Correction tools, Transition with guided correction. This is
probably the most effective correction for wide-angle lens distortion.

There is the Adaptive Wide Angle Filter which can Auto correct if there is a
matching lens profile, or the manual Perspective correction which requires
some understanding how the filter is used. You also have options for Fish Eye
lens correction, or full Spherical correction.

Using the Adaptive Wide Angle filter, manual Perspective correction you can
use any number of distorted lines which should be straight for correction.
Understand that with an Ultra Wide Angle lens the greatest distortion is
going to be away from the center line, and over correction can induce
unwanted distortion of straight lines in the center of the image.

Good Luck.

BTW: What WA lens and camera combination are you using?

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Regards,
Savageduck