Its hard to say if it is a VT that is missing the trigger on the bottom or a VL without the correct winder. It is really easy to take off the bottom plate, it is just two screws on the sides, and using a spanner you remove the retaining ring that is around the tripod socket. From there you should be able to make out if it supports the trigger winder or not. These are nice cameras and really solid, but using that type of winder is will make it difficult to use this quickly. I have the VT and the VIT cameras.