Dumb question: What is a T&S lens?
A tilt and shift lens. It basically helps to control the perspective when taking architectural shots. So if you take a shot of a building looking up, you normally get the sides of the building converging together. With a tilt & shift lens, you can prevent that to some extent and keep the verticals parallel to each other.






----Brad---- 

I forgot to add my request, then flipped several pictures from that same session.. because the one I posted had a crooked horizon 
