Pentax 645Z vs Pentax Optio RS1500

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      Specifications

      General Pentax 645Z Pentax Optio RS1500
      BrandPentaxPentax
      Model645ZOptio RS1500
      Predecessor ModelPentax 645D
      MSRP$8499.95 / £6799.99 (body only), £7699.99 (with 55mm lens)
      Camera TypeInterchangeable LensPoint & Shoot
      Body TypeDSLRStandard Compact
      Video Capture
      Sensor Pentax 645Z Pentax Optio RS1500
      Sensor TypeCMOSCCD
      Sensor SizeMedium format1/2.3-inch
      Sensor Dimensions44 x 33 mm6.17 x 4.55 mm
      Total Pixels52.99 Megapixel14.5 Megapixel
      Effective Pixels51.4 Megapixel14 Megapixel
      Low Pass Filter
      Native ISO Range100 - 204,80080 - 6,400
      Photo Pentax 645Z Pentax Optio RS1500
      ProcessorPRIME III
      Max Image Resolution8256 x 61924288 x 3216
      Other Resolutions6912 x 5184, 5376 x4032, 1920 x 10804288 x 3216, 4224 x 2376, 3216 x 3216, 3072 x 2304, 3072 x 1728, 2592 x 1944, 2592 x 1464, 2048 x 1536, 1920 x 1080, 1024 x 768, 640 x 480
      Image Aspect Ratios4:34:3, 3:2, 16:9
      Image File FormatDNG, JPEG, RAW
      JPEG Quality LevelsSuperfine, fine, normalBest, Better, Good
      Bit Depth14-Bit
      Timelapse Recording
      White BalancePresets: Auto, CTE, Cloudy, Color Temperature, Daylight, Flash, Fluorescent (Cool White), Fluorescent (Day White), Fluorescent (Daylight), Fluorescent (Warm White), Manual, Multi Auto WB, Shade, Tungsten
      WB Bracketing
      Focus Pentax 645Z Pentax Optio RS1500
      Autofocus ModesMulti-area
      Selective single-point
      Tracking
      Single
      Continuous
      Face Detection
      Live View      		Multi-area
      Tracking
      Single
      Live View
      Lens ServoContinuous-Servo AF, Manual Focus, Single-Servo AF
      AF Detection Range-3 to +18 EV
      Number of Focus Points279
      Touch-to-Focus
      Live View Autofocus
      Animal Eye Detection
      Vehicle Tracking Mode
      Insect Tracking Mode
      Contrast Detection for Autofocus
      Phase Detection for Autofocus
      Optics Pentax 645Z Pentax Optio RS1500
      Lens MountPentax 645AF2
      Crop Factor0.79x
      35mm Equivalent Focal Length Range28 - 110 mm
      Optical Zoom4x
      Maximum Aperturef/3.5 - 5.5
      Min Normal Focus Distance50 cm
      Min Macro Focus Distance1 cm
      Image Stabilization
      Digital Image Stabilization
      Screen Pentax 645Z Pentax Optio RS1500
      Screen TypeTiltingFixed
      Screen TechnologyTFT LCDTFT color LCD with Anti-reflective coating
      Touch Screen
      Screen Size3.2"2.70"
      Screen Resolution1,037k dot230k dot
      Top LCD Screen
      Live View
      Live Composition
      Viewfinder Pentax 645Z Pentax Optio RS1500
      ViewfinderOptical (pentaprism)
      Viewfinder Coverage98%
      Viewfinder Magnification0.56x
      Viewfinder Magnification (35mm equivalent)0.71x
      Diopter Adjustment-3.5 to +2
      Shutter Pentax 645Z Pentax Optio RS1500
      Shutter TypeMechanical Focal Plane
      Min Shutter Speed30 sec4 sec
      Max Shutter Speed (Mechanical or 1st Curtain)1/4000 sec1/1500 sec
      Max Continuous Shooting3.0 fps0.7 fps
      Continuous Shooting Resolution/fps/bufferUp to 3 fps for up to 30 Frames (JPEG) / 12 Frames (TIFF) / 10 Frames (Raw)
      Flash Pentax 645Z Pentax Optio RS1500
      Built-in Flash
      Flash ModesFlash On
      Flash On+Red-eye Reduction
      Slow-speed Sync
      Slow-speed Sync+Red-eye
      P-TTL
      Trailing Curtain Sync
      contrast-control-sync
      high-speed sync
      wireless sync      		Auto
      On
      Off
      Red-eye
      Soft
      Flash Range3.90 m
      Max Flash Sync Speed1/125 sec
      Flash Compensation-2 to +1 EV (1/2 EV Steps)
      External Flash Connectivity
      External Flash SystemP-TTL
      External Flash ConnectionHot Shoe, X-Sync Terminal
      Exposure Pentax 645Z Pentax Optio RS1500
      Exposure Metering ModesMulti
      Center-weighted
      Spot      		Multi
      Center-weighted
      Spot
      Exposure ModesAperture Priority, Manual, Program, Sensitivity Priority, Shutter Priority
      Metering Range-1 to +21 EV
      Exposure Compensation±5 EV (1/3 EV, 1/2 EV increments)±2 (at 1/3 EV increments)
      Exposure Bracketing ±5 EV (2, 3, 5 shots at 1/3 EV, 1/2 EV, 1 EV, 2 EV increments)
      DXO Pentax 645Z Pentax Optio RS1500
      DxO Low Light ISO4505
      DxO Color Depth26.0
      DxO Dynamic Range14.7
      DxO Overall Score101
      Video Pentax 645Z Pentax Optio RS1500
      Internal Recording ModesAVI/MOV/H.264/MPEG-4
      Full HD: 1920 x 1080p @ 23.98/25/29.97 fps
      Full HD: 1920 x 1080i @ 50 fps
      HD: 1280 x 720 @ 24/25/29.97/50 fps
      Interval Recording
      Video FormatsMPEG-4, H.264Motion JPEG
      Max Video Resolution1920 x 10801280 x 720
      External Recording ModesHDMI
      1920 x 1080p
      1280 x 720
      1280 x 576
      720 x 480
      Unlimited Video Recording
      Recording Limit25 min
      Terminals Pentax 645Z Pentax Optio RS1500
      Audio I/O1 x 1/8" / 3.5 mm TRS Stereo Microphone Input
      Other I/O1 x Micro-USB (USB 3.2 / 3.1 Gen 1) Input/Output (Shared with Power Input)
      1 x 2.5 mm Sub-Mini Control Input
      1 x PC Sync Socket Output
      USB SpeedUSB 3.2 Gen 1x1 (5 GBit/sec)USB 2.0 (480 Mbit/sec)
      HDMI Output Micro Type D Type D Micro
      SpeakerStereo
      Built-in MicrophoneMonoMono
      Microphone Input
      Headphone Output
      Flash Sync Port
      Connectivity Pentax 645Z Pentax Optio RS1500
      Built-in GPS
      Built-In Wi-Fi
      Built-In Bluetooth
      Remote Control
      Environmental Pentax 645Z Pentax Optio RS1500
      Environmental Sealing
      Operating Temperature14 to 104°F / -10 to 40°C
      Physical Pentax 645Z Pentax Optio RS1500
      Dimensions156 x 117 x 123 mm (6.14 x 4.61 x 4.84")114 x 58 x 28 mm (4.49 x 2.28 x 1.1")
      Weight (inc. batteries)1550 g (3.42 lb / 54.67 oz)157 g (0.35 lb / 5.54 oz)
      Box Dimensions (LxWxH)10 x 9.291 x 8.583"
      Package Weight6.7 lb
      Power and Storage Pentax 645Z Pentax Optio RS1500
      Battery PackD-LI90D-LI92
      Battery Life650 shots260 shots
      Internal Storage97 MB
      External StorageDual Slot: SD/SDHC/SDXC (UHS-I)Single Slot: SD/SDHC/SDXC
      Other Pentax 645Z Pentax Optio RS1500
      Self Timer 2 or 10 secsYes (2 or 10 sec)
      Orientation Sensor
      Tripod Mounting Thread1 x 1/4"-20 Female (Bottom)
      1 x 1/4"-20 Female (Side)
      Accessory Mount1 x Hot Shoe Mount
      1 x 1/4"-20 Female on Camera Body
      Material of ConstructionMagnesium Alloy, Aluminum
      Electronic Level Gauge


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