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. dpreview.com »

2016-12-2 18:00