I got a lot of good miles out of a 127mm Ysaron, and was impressed by its coverage. I replaced it with a 135mm Symmar, which was smaller due to the non-selfcocking shutter, and which seems to have better off-axis behaviour than the Ysaron did. On the other hand, I haven't used it for close-ups, so I can't comment on how it performs at near 1:1 versus the Ysaron. The price should be pretty moderate used, as I paid around $200 for mine.