Pentax's digital medium format flagship — the 645Z with 51.4MP CMOS sensor.
The Pentax 645Z is a medium format digital camera featuring a 51.4MP CMOS sensor on a 44x33mm format — the same sensor size as Fujifilm GFX and Hasselblad X systems. Released in 2014, it was the most affordable medium format digital camera at launch. The 645 system provides access to decades of Pentax 645 lenses with AF.
Image quality is outstanding — 51.4MP on medium format provides extraordinary resolution and tonal depth. The CMOS sensor provides excellent high-ISO performance — usable to ISO 6400 and beyond. Weather sealed construction. Tilt LCD. Dual card slots (SD and SDHC). The 645Z brought medium format digital to a broader audience at competitive pricing.
Pentax 645 mount — compatible with all FA 645 AF lenses and older manual 645 lenses. Weight approximately 1,550 grams body only — heavy. Build quality outstanding with full weather sealing (dust, splash, freeze). Tilt LCD. GPS. WiFi. The CMOS sensor provides live view and video — firsts for the 645 system.
Available at significant discounts from original pricing — the Fujifilm GFX and Hasselblad X systems offer newer alternatives. Check sensor, weather seals, and AF. The 645Z remains an outstanding medium format digital camera. The enormous 645 lens system is the key advantage. One of the most affordable paths to 51MP medium format digital.