In the message <199902090519.OAA49248@ml.asahi-net.or.jp>, Hiroyuki Yasuda writes: > > AF-S 28-70/2.8D $B$O$$$/$i$K$J$k$N$G$7$g$&$+$M$'!D(B $B$=$l$rCN$j$?$$$P$+$j$K(B35-70/2.8D$B$rGc$($:$K$$$^$9(B ^.^; $B0JA0$*5RMMAjCL<<$G!"#27n$K$OH/I=$G$-$k$N$G$O$H8@$C$F$^$7$?$,(B, $B$^$@$+$J!<(B -- $B;T@n!!<~0l(B (Shuichi ICHIKAWA) <ichikawa@tutkie.tut.ac.jp>