Hi M,

the 135mm has a moderate amount of stack in the forground, the best that I have found is the 200mm length lenses, they give you the stack/compression of the telephoto and also give you good enough magnification with close enough focus to render people pictures, the 135 and the 200's are my favorite lenses for general all around use, they work very good in portraits, and still ahve good enough capabilites to work with wildlife and work great for landscape...just good focal lengths in my opinion.