As Rick said above. 135 is in the middle of the focal length range for 4x5 cameras. It's a slightly wide normal. You have plenty of room on either side for a shorter or longer addition to your kit when you feel the need. I prefer a 150, but only because I have a 120 and a 210. A 135 would be a bit redundant for me. You may choose to go with a 90 and 180 as additional lenses. It's nice to have choices.