It doesn't matter if they are hung straight. The frame sides should be parallel to themselves.
"without aberration of some sort."
That is only evidence your equipment was inferior. I can grab countless examples of wide angle lenses that don't have those problems with simple image searches.
Firstly, of coursed its shopped, it's a digitally processed image that had the distortion corrections applied. Secondly, stop using shitty screen grabs people upload here. When I use your tool with a high res image there is nothing that appears out of the ordinary.
It doesn't matter if they are hung straight. The frame sides should be parallel to themselves.
"without aberration of some sort."
That is only evidence your equipment was inferior. I can grab countless examples of wide angle lenses that don't have those problems with simple image searches.
"Looks 'shopped to me: https://29a.ch/photo-forensics/#error-level-analysis"
Firstly, of coursed its shopped, it's a digitally processed image that had the distortion corrections applied. Secondly, stop using shitty screen grabs people upload here. When I use your tool with a high res image there is nothing that appears out of the ordinary.
https://www.youtube.com/watch?v=oJimiVFCjJ0&t=5s