Hi, I am totally new to medium format and film photography but have decided to switch to medium format film. After research, i have bought a mamiya rz67 pro II and the 110mm lens. But I am also very interested in architectural photography so i want a wide angle lens too. I have read that the 50mm uld lens is the best for this camera. But does the uld aspect make much difference compared to non-uld? and is the 65mm so noticeably narrower or poorer in quality? I'm an amateur but I really want to improve the quality of my output so if it makes a huge difference I will wait and save for the 50mm uld.