I have rented an RB 67 and the 90mm lens it came with seems to have a very visible defect on the coating of the front element. How is this likely to affect my images? And what sort of scenes/lighting should I avoid in order to minimize any issues?
As this is an experiment I am not too concerned about overall quality, but I want to be forewarned so I can choose my scenes more carefully. My main subject material is going to be landscapes, but also some portraits and other up close subject material. Note that I also have a 180mm lens that appears to have no serious issues, and I will probably be swapping between the 2.