I've had one of these for years and they really help in filming your layout. It's a weighted bag with a camera mount. The bag can sit on all kinds of areas that a tripod can't. It can hold a video or still camera, up to five pounds. The bag conforms to most any area you want to film. It's great for low hard to get shots of your trains, towns or any other area of your layout. They are sold through Panavision's Panastore and are on sale now. About $25. https://panastore.com/collecti...topus-camera-octopad
Happy shooting. Don