For proper thread size please refer to the owners manual of the camera you will be using. For a growing list of common thread sizes please visit our Wiki

Common Camera thread sizes:

• Sony PMW-EX1 and EX3 = 77mm specialized
• Panasonic AG-HVX200 = 82mm specialized
• Panasonic AG-HPX170 = 72mm
• Canon XH-A1 = 72mm
• JVC GY-HD100/200 = 82mm
• JVC GY-HM100 = 46mm
• Canon HV20/30/40 = 43mm