I had another post planned for today but when my wife Levi erupted in laughter at her computer just now and showed me these photos on an email flyer she got today for a listing in Tacoma, WA, I felt that despite the fact I've already given two beginning photographers a lecture today on verticals I need to talk about this again.
What my wife was laughing about is the row of little photos along the bottom that all have wacky verticals. When you line them up together you get a particularly strange effect. It makes my stomach queasy!
The fact is photographers skilled in other photographic gendres that have never shot inside with a wide angle lens never think about verticals. And most never figure out, by themselves, that it's important to have verticals parallel with the left and right edge of the frame. They have to be told. And some will even argue that it's not important. There is a very accomplished and successful real estate photographer in Australia (that will remain unnamed) that it took me several months in 2007 to to convince that verticals should always be rendered vertical. It's just a concept beginners have a struggle with, but once they become believers they end up spreading the gospel.
Understanding the vertical issue is sort of an rite of initiation in interior photography. Once you get your verticals, vertical you can start charging money to shoot interiors!
If you are one of the newbies that still need to know why and how here are some older posts on the subject:
Wow, I didn't realize I'd written so much on this subject.