fairly new to wine making, so if the answer to this is obvious, please
accept my apologies.

I Have a blackberry wine that was perfectly clear but when racking it to a
clean demijohn with a crushed campden tablet, the wine turned cloudy! No
sediment was picked up, just seems that the campden tablet has turned the
wine cloudy!. Is this normal, or have I made an ars*.... mistake! Thanks in
advance!!

Duncan