Trochę o szkłach typu C 18-200

http://www.canon-board.info/showthread.php?t=49593
http://www.canon-board.info/showthread.php?t=60314
http://www.canon-board.info/showthread.php?t=61953
http://www.canon-board.info/showthread.php?t=66746
http://www.canon-board.info/showthread.php?t=73879