way to restore 'ls' formatting after pipe

In order to be able to display file names encoded in sjis with ls, I've
created an alias: 'ls | iconv -f sjis -t euc-jp'.  This works well enough
except that I lose the multi-column output of ls.  Is there some way to
re-format the output into columns after the charset conversion?

If it's not clear what I mean, ls gives an output in columns like:

% /bin/ls
togawa.doc   ?v?Z????.??  ????????.PCX ?v?|
youshi.txt   ?????t??.?[  ???_?f?[.?^

, but after passing it through the charset conversion the files are
listed on individual lines:

% /bin/ls | iconv -f sjis -t euc-jp
togawa.doc
youshi.txt
JAPANESE.MM
MULTIBYTE.XX
CHARACTERS.PCX
LEGIBLE.ZZ
HERE

Any help/ideas much appreciated.

-- 
henry nelson