Quick to do

Lens distortion can often be rectified very swiftly with the Transform tool. Simply by selecting the various parts of the image and dragging to the desired position.

With the before and after below - the image corners were just pulled in a matter of minutes.
( Just remember to shoot allowing for the editing process )

[AndyStevens]

I've been known to use Edit > Transform > Skew to correct converging verticals - generally do barrel/pin cushion correction in ACR.

As you say though Andy, it can all be done quickly and easily.

[pavman]

In Lightroom 3 it has a lens correction tool you can choose either Profile (lens used) or Manual
it also covers lens vignetting and chromatic aberration. As I use Canon I have a list of about 40 plus lens in the profile to select from.

Originally Posted by AndyStevens

I've been known to use Edit > Transform > Skew to correct converging verticals - generally do barrel/pin cushion correction in ACR.

As you say though Andy, it can all be done quickly and easily.

Yes, there are various ways to overcome different problems and of course not everyone has top end cameras or editing software and while my example is a quick edit fixit demo; it was prompted after seeing some awful "published shots" in a magazine where I quess the editor was not bothered or fussy about the magazines overall generally smart style.

[AndyStevens]

Yes, i know what you mean Andy, I do sometimes question an editor's choice of image on the page.

I guess when you have taken a few shots over the years odd shots pop out at you. I cannot remember the magazine name or the featured tog's either as it was on the table in a waiting room. The article was all about the excitement of architecture somewhere in the med and the lens the tog used was throwing doorways way out of plumb, while his landscapes were wonderful to the eye.