This lens is superb optically. I use it mainly in the studio for table top shots. I found that it is far more flexible for small jewelry products than when I used a 100mm Macro, because of the tilt feature. I have used it with the 2x Teleconverter to achieve very close results.
Great resolution; Tilt and shift are waaay more useful than shift alone
have to modify it to change the axis of shift with tilt; a little bulky (but not bad