In the late 1940's my father began shooting large format in the Air Force (4x5 Speed Graphics & K20's). After his military career was over, he became a professional photographer that often shot large format for weddings, portraits, commercial work, etc. His Linhof was a workhorse for many years. He put a lot of food on the table with that camera. Eventually he went to medium format, but he always had a 4x5 around - just in case. As a youngster, I was weaned on a 4x5 both for shooting and in the darkroom. While I've enjoyed dalliances with medium format film and digital cameras, I always come back to large format. I love all the movements, the process of taking a single image, and having a more thoughtful approach to each scene - but that big negative is the main drug for me.