I seem to be having posting problems suddenly. I was going to mention that though I like the 135/2.8Q, I find it for some reason harder to hand hold and focus than either the 105/2.5 or the 200/4. That latter seems to snap into focus easily, and with a bunch of extension tubes, it makes a surprisingly good lens for chasing bugs. Anyway, the 135 works ok when there's enough light and a tripod, but it seems difficult to get sharply focused, at least on a DX format camera.
I do, however, like the way it does muted colors like browns and grays. BAck when I was shooting a lot of film, I may have been one of the very few people who really liked Velvia 100F film, because it did those earth tones so well. I didn't have the 135 then, but I imagine it would have been just right with that. If it loads properly, here's a quickie backyard shot which may not show what I mean exactly in JPG and web form, but I really like those earth tones, and I can imagine that this lens would work very well in proper black and white, too.
still won't load. I have downsized it to 1000/666.....third try coming up.....