Shifting skyscrapers in Warsaw

Today I decided to practice tilt shift lens a little bit. Weather was nice, so I went to Warsaw city center and took pictures of some skyscrapers (if we can call them this name). All pictures were taken hand held with manual focus and shift feature of the lens. Sometimes it's not easy and as you can see lines aren't perfect. I just wanted to proof that it's possible to leave tripod at home if you're lazy...