On Sun, 7 Dec 2003, Herb Chong wrote: > so does the FA J 18-35. does that mean you should consider it? 58mm for that > wide means a slow lens and that means for the times when you want shallow > depth of field, you won't be able to get it.
Out of curiosity, I played with the calculator at http://www.tawbaware.com/maxlyons/calc.htm I assumed focusing at 3 m. The DOF of the 20 @ 2.8 is 6m, and it is *26m* @ 4! Thanks for the comment, Kostas (I won't bother with the price differentials though :-)
