I'm thinking of getting the Canon 100-400 L IS and one of its main uses would be watersports.


Of course half the time I would be shooting from a moving boat an so a tripod isn't really very helpful, and as this is a heavy lens handholding could get quite uncomfortable after a day on the water..





Does anyone know if any kind of pistol grip or other handle to attach to the tripod mount on the lens is available?


I've seen a few on the internet, but most of them seem to be ether out of production or designed to mount to a particular lens..


Any help would be much appreciated