mallen1330 Loc: Chicago western suburbs

As I mentioned in "Introduction to Architectural Photography" here - http://www.uglyhedgehog.com/t-366149-1.html architectural photographers strive for vertical lines that are non-converging (parallel) - accomplished with tilt-shift lenses or view cameras, or with post-processing. But there are exceptions. For dramatic effect, tall buildings don't always appear distorted -- see example. However straight on street or interior shots can provoke a feeling of unease or disorientation when the verticals are leaning.

For other genres, especially street photography, distorted perspective and slanted horizons can add to the drama and sense of capturing the moment or expressing a cinéma vérité approach.

converging verticals acceptable?

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SOOC - Buildings "leaning"

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Perspective corrected -- the way our brain sees it.

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johneccles Loc: Leyland UK

I consider some perspective is quite acceptable, however, the perspective in the last photograph has been has been done very well and you have not lost too much detail.

jaymatt Loc: Alexandria, Indiana

Nice, interesting architecture shots--and a first-rate correction in the second one. Good job.

EdR Loc: Gig Harbor, WA

First picture wasn’t disturbing to me, seemed natural. Of the ones of the river number two is more natural looking with the corrections. Was there still a little green in the river?

mallen1330 Loc: Chicago western suburbs

The green dye was visible a few blocks east. But, that was where the crowds were.