> Somehow the 43 is pretty dust resistance. Mine is clean too even > it is my most used lens for the last 3 years. FA24 2nd. FA77/1.8 & > F/FA135/2.8 are dust suckers.
It is my hypothesis that telephotos (except IF ones, of course) tend to exchange more air while focusing back and forth (with their usually longer helicoids) than do most wide angles, and so they end up sucking in more dust. ;-) Fred
