push @classic_fields, [ $1 . "mm", 0 ];
} elsif (defined($info->{'FocalLength'}) && $info->{'FocalLength'} =~ /^(\d+)\/(\d+)$/) {
push @classic_fields, [ (sprintf "%.1fmm", ($1/$2)), 0 ];
push @classic_fields, [ $1 . "mm", 0 ];
} elsif (defined($info->{'FocalLength'}) && $info->{'FocalLength'} =~ /^(\d+)\/(\d+)$/) {
push @classic_fields, [ (sprintf "%.1fmm", ($1/$2)), 0 ];