Olympus

Olympus moved its first steps in 1936, and made fisheyes since the launch of the OM camera system, then for their 4/3 and micro 4/3 systems. Their fisheye lenses being always priced to high for most people, they made an high quality attachments for their compact cameras, underwater systems, for the micro 4/3 kit zoom, and finally a “fisheye cap” with fixed aperture.
Unfortunately in the last 10 years Olympus was in the middle of scandals, briberies, and economical struggles. ending up in 2020 with the sale of the imaging department to JIP, the future is uncertain.

 Olympus Shared Resources: Zuiko Lenses
Olympus Corporation