Quote Originally Posted by Ian Grant View Post
150mm is deemed Normal for 5"X4" cameras, some prefer a 135mm as Normal others a 180mm, and a far smaller percentage a 210mm but for studio work - not general use.

Press photographers preferred 135mm on their 4x5s so get would be sure to get the photograph and do the cropping later. That is why Speed and Crown Graphics often come with 135mm lenses.