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Asao Tenchidō (アサオ天地堂) was a Japanese camera distributor. It was already active in 1922, and its address at the time was Yotsuya-ku Tenma-chō in Tokyo (東京市四谷区伝馬町). In the mid-1920s it advertised the Cadenza soft-focus lens, which was perhaps the first Japan-made photographic lens commercially available.
- ↑ Advertisement in Ars Camera February 1922, no page number.
- Ars Camera. Advertisements by Asao Tenchidō in February 1922, November 1924, June 1926, December 1926 and February 1927. No page numbers.