Hey-
been lurking since coming over from the L-camera forum, but wanted to add-
got this lens for some interior architectural work and had to figure it out so I set up a test in my apartment looking out a window and ran all the significant focus marks on the lens barrel and then checked them against 100% on screen and this is what I got for f11 measured with a tape measure
setting on lens------near limit-----far limit
1ft ----------------------all------------.5m
1.5ft---------------------all------------1.0m
.5m----------------------all------------1.0m
2.0ft---------------------all------------1.0m
1.0m--------------------.5m-----------11ft or 3.3m
5ft------------------------1m---------- 15ft
2.0m---------------------1m-----------16ft or 4.9m
infinity------------------ 2m, 6.5ft-----infinity
in practice I find the most useful marking is therefore the 2.0m mark, I wish it had a click stop. Use this when you want a good balance between near and far. If you want to pull focus closer and soften infinity a tad use the 1 meter mark, and if you really want infinity sharp, set it to infinity. Surprisingly, at 2m, infinity will not be sharp, even at f11. It is pretty close tho.
Of course in reproduction in a magazine at full page you have some leeway since this is all evaluated at 100% pixel peeping range.
hth! its a great lens. Incidentally I use it unfiltered, lens detection on, no UV-IR and do any fixing in corner fix. Much easier that way imo.