Matsumoto Jun (松本順, Matsumoto Jun?) (also known as Matsumoto Ryōjun 松本良順 (1832-1907) was a Japanese physician who served as the personal physician to the last shogun, Tokugawa Yoshinobu. He also studied photography with J. L. C. Pompe van Meerdervoort (1829 - 1908), though he was somewhat unimpressed with his instructor's skills, once describing the result of one of Pompe van Meerdervoort's photographic experiments as "a meagre black shadow".

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