I have a Nikon D3100 with the standard 18-55mm lens, and a Nikon 55-300mm lens. I bought a 2X teleconverter for the 55-300mm lens, but the TC seems to be unusable. At 300mm with the TC everything is ...
I am about to buy a fun super-zoom mirror lens which is so long it has its own tripod mount. To protect the camera, I am wondering if there is a mount accessory which will allow for two items to be ...