that lens is not made for the majority...i'm getting so many PNs complaining that MF is not that easy, what AF-Chip i'm using, which focusing screen and so on...quality wise this lens is superb. IQ as good as the 35L. Still - if you have the money get the 35L.. much much easier to use.
May the spam be with you! :P
wow...flare control is SUPERB with this lens !