« Previous page HDSLR Support Rig : CS-M8 : CS-397 : CS-397 Ballhead 50mm for CS-M8 The CS-397 Ballhead is a small 50mm high ballhead and can be used for mounting to the CS-M8 to swivel and position a monitor or microphone The CS-397 has 1/4 threading on top and 3/8 threading on the bottom mount.