Confused by “White Balance”? It’s not just you.

Confused by “White Balance”? It’s not just you.
The question of “what DPI do my photos need to have?” comes up often in forums about online photo sales. It can set off a firestorm, with some replies containing total misinformation. Arguments can ensue.
I like doing photos of city scenes and tall buildings. There’s always the question of how “vertical” those buildings should look. Point the camera up and the vertical lines converge in the distance, making the building seem really tall. Sometimes that’s exactly what I want.