Mamiya announced a new digital back at Photokina: the ZDb 22 megapixel Digital Back. The new model has several upgrades from the current Mamiya ZD back: a buffer with up to twice the memory, compatibility with SDHC cards and more. The ZDb is compatible with the Mamiya 645AFDII, Mamiya 645AFDIII, RZ67Pro-IID and RB67Pro-SD. Pricing and availability have not yet been announced, but will be available later in the fall. The specifications are:

• Compatible cameras: Mamiya 645AFD/II/II, RZ67Pro-SD, RB67Pro-IID
• Image sensor: 48×36mm full-frame transfer CCD
• Total pixels: 21.70 mega pixels
• Effective pixels: 21.30 mega pixels
• Filter: Interchangeable: IR cut filter (standard), Low pass filter,
• Filter for IR photography
• Media card slot: Slot 1 for SD/SDHC, Slot 2 for CF card (type I & II)
• Capture rate: 1.2 fps (burst rate: 22 frames)
• Recording formats: RAW, JPEG (exif2.2), simultaneous RAW & JPEG
• File size of RAW: approx. 35MB
• JPEG Quality: L (5328×4000 pixels), M (4096×3072 pixels)
• S (3008×2256 pixels)
• JPEG compression: Fine, Normal, Basic
• Color space: Adobe RGB, sRGB
• White balance: Auto, Daylight, Shade, Tungsten, Fluorescent, Strobe
• Color temperature & Preset 1 & 2,
• Sensitivity: ISO 50 to 400
• LCD monitor: TFT 1.8”
• External interface: IEEE1394 4-pin
• Power source: Lithium ion rechargeable battery
• Dimension/Weight: 106(W) x 90(H) x 62 (D) mm / 470g (body only)