Originally posted by axl ...just one Q for everybody: How noticable is the barrel distortion?/How much PPing (debarelling) you need to do?
It all depends on what you have on the sides of the image. I believe this is no problem shooting landscapes. In the city, with lots of parallel lines, it will be quite visible. look at the corner in on the left side:
As a coincidence, I'm just looking at PTLens ($25.00) and the correction is ' just a click away':
This is with the trial version; you can try it out on ten photos. Seems like a solid investment to me.
Quite remarkable to see the image straighten out
.