Ricoh has released firmware updates for its K-3 and K-50 DSLRs which add support for the company's K-AF4 lenses. K-AF4 lenses electromagnetically control aperture rather than using a mechanical linkage to the camera body.

At time of publication, only the 55-300mm F4. 5-6. 3 ED PLM WR RE uses this system.

The firmware also improves overall camera stability.

Download K-3 firmware update 1. 30

Download K-50 firmware update 1. 10

2016-12-2 18:00