I haven't heard any discussion on the Zenzanon PS 110mm f/4.5 1:1 Macro. I am wondering if anyone is using this lens. Can anyone tell me what the image quality of this lens is? I am actually looking for a short-tele. The macro ability is just an addition bonus for me. Should I just consider the PS 135mm f/4.0 or the old PS 110mm f/4.0 Macro indeed? Thanks!