EF100-400mm combined with EOS30D. Never had problems with unsharp pictures.. Miroslawiec 26/4: http://img296.imageshack.us/my.php?image=img5722bcs3.jpg" onclick="window.open(this.href);return false; Poznan last Friday 27/4: http://img82.imageshack.us/my.php?image=img6142buu4.jpg" onclick="window.ope...