The Fujifilm Fujinon T 300mm f/8 is a telephoto-design large format lens with a 213mm image circle, covering 4x5in with moderate movements. At 415g with a 67mm filter thread, the T designation indicates a telephoto optical construction that provides a significantly shorter back focus than a conventional 300mm lens. This makes it usable on cameras with limited bellows extension, popular among field photographers using compact cameras.