DPReview: Firmware update adds support for K-AF4 lenses to Pentax K-3 and K-50

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

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