Horseman and Yashica

12 and 12 researched events on one shared scale. Horseman 1933–present, Yashica 1949–present.

The axis stretches where either maker has research and collapses where neither does, so a year sits opposite the same year on both. Event counts differ because research depth differs, not because one company did less.

Vertical Horizontal Reading

Horseman1933–present · 12 events · 4 concurrent threads

Topcon Horseman line matures VH-R refines compact technical camera Field cameras reach four by five Modular studio systems expand Panoramic systems broaden formats Digital adapters preserve movements Museum and product stewardship continue

Yashica1949–present · 12 events · 5 concurrent threads

Twin-lens reflex range expands Nicca opens interchangeable-lens path Pentamatic yields to M42 Electro automation defines the brand Tomioka joins Yashica optics Zeiss collaboration creates C/Y FX and FR systems mature Kyocera absorbs Yashica Trademark and optics follow separate paths

1 span collapsed, 13 years in total, where neither maker has a research point: 1934–1946. Collapsing keeps a short-lived maker readable beside a long-lived one; the years are removed from the drawing, never from the record.

Read either maker on its own: Horseman · Yashica