EBC Fujinon-T 135mm f3.5 is a short telephoto lens for the modified M42 Fujinon mount. Its indexing tab protrudes from the rear edge of the aperture ring, so while this lens will mount to some M42 cameras and adapters, it may require modification to fit on others. Cosmetic condition is very good, with minor wear from used and handling; glass shows minor dust, no haze or fungus. Focusing and diaphragm work well.