This is a Phase One P45 digital back for the Mamiya 645 mount. The shot count is in the 20300s. I purchased this used several years ago, but I haven't had much opportunity to use it recently, so I'm putting it up for sale. The system is old, and I haven't had many chances to use it, but the images from the large CCD sensor, which surpasses the GFX, still look beautiful even now. The body has some minor dents and scratches, and there are some faint scratches on the rear monitor that are visible when held up to strong light, but it's generally clean, and I don't think there are any scratches on the CCD surface. Please see the photos for the detailed condition. This is a used item with some scratches. 【P45 SPEC】 Sensor Size: 49.1 x 36.8mm Pixel Count: 7216 x 5412 (39 million pixels) Monitor: 2.2 inch ISO Sensitivity: 50-400 Recommended Sensitivity: 50-100 Recommended Exposure Time: 30min 1.7sec/frame Lens Magnification: x1.1 【Included Accessories】 Digital Back Pouch FireWire Cable (400-800) FireWire Cable (400-400) DigiClean (Cleaning solution: about 70% full, paper: about 10 sheets) Batteries: 3 (2 of which are heavily degraded) Charger LCC Plate Document Case Software CD (Serial number usage not confirmed) Various Sync Cables (Operation not confirmed) CF card writing was also performed normally. (Card not included) Large-capacity CF cards released in recent years may not be recognized. This is not a consumer product, but a camera for professional and commercial use. Due to its difficult handling, there is a possibility that it may not work depending on the usage environment. Please purchase this item if you understand its nature.