The Pentax AF 330FTZ is a dedicated autofocus flash unit designed in the early 1990s for Pentax’s Z-series and PZ-series 35mm film SLR cameras, operating through the brand’s TTL (Through-The-Lens) metering system. It delivers a guide number of 33 (ISO 100, 85mm coverage), giving it enough power for general portrait, event, and fill-flash work in both indoor and outdoor conditions typical of film-era shooting. One of its key features is a motorized zoom head that automatically adjusts flash coverage from 28mm to 85mm, ensuring proper light distribution based on the lens focal length being used. The unit also includes an infrared autofocus assist beam, which helps the camera achieve focus in low-light environments where standard AF systems struggle. Exposure control is handled through TTL communication with compatible Pentax film bodies, allowing for automatic flash exposure as well as limited manual output options for more controlled lighting setups. Built with a compact, lightweight design and powered by four AA batteries, the AF 330FTZ reflects the early transition era of automated flash systems, though it lacks modern P-TTL compatibility and is therefore mostly used today with vintage Pentax film cameras or as a basic manual flash on newer systems.
