Other image formats have been applied to 135 film, such as the half-frame format of 18×24 mm which earned some popularity in the 1960s, and the 24×24 mm of the Robot cameras. The successful range of Olympus Pen F cameras utilized the smaller half-frame size, allowing the design of a very compact SLR camera. Unusual formats include the 24×32 mm and 24×34 mm on the early Nikon rangefinders, and 24×23 mm for use with some stereo cameras. In 1967, the Soviet KMZ factory introduced a 24×58 mm panoramic format with its Horizont camera (descendants of which are called, in the Roman alphabet, Horizon). In 1998, Hasselblad and Fuji introduced a 24×65 mm panoramic format with their XPan/TX-1 camera. There is also a 21×14 mm format used by Tessina subminiature camera.
Other image formats have been applied to 135 film such as the half-frame format of 18×24 mm which earned some popularity in the 1960s and the 24×24 mm of the Robot cameras The successful range of Olympus Pen F cameras utilized the smaller half-frame size allowing the design of a very compact SLR camera Unusual formats include the 24×32 mm and 24×34 mm on the early Nikon rangefinders and 24×23 mm for use with some stereo cameras In 1967 the Soviet KMZ factory introduced a 24×58 mm panoramic format with its Horizont camera (descendants of which are called in the Roman alphabet Horizon) In 1998 Hasselblad and Fuji introduced a 24×65 mm panoramic format with their XPan/TX-1 camera There is also a 21×14 mm format used by Tessina subminiature camera