Sony Alpha 7R IV vs Pentax KF

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      Specifications

      General Sony Alpha 7R IV Pentax KF
      BrandSonyPentax
      ModelAlpha 7R IVKF
      Predecessor ModelSony Alpha 7R III Pentax K-70
      Successor ModelSony Alpha 7R V
      MSRP$3500 (body only)$649/£559 (body only), £799 (w/18-135mm lens)
      Camera TypeInterchangeable LensInterchangeable Lens
      Body TypeMirrorlessDSLR
      Video Capture
      Sensor Sony Alpha 7R IV Pentax KF
      Sensor TypeBSI-CMOSCMOS
      Sensor SizeFull FrameAPS-C
      Sensor Dimensions35.7 x 23.8 mm23.5 x 15.6 mm
      Total Pixels62.5 Megapixel24.78 Megapixel
      Effective Pixels61.0 Megapixel24.24 Megapixel
      Low Pass Filter
      Native ISO Range100 - 32,000100 - 102,400
      Boosted ISO Range50 - 102,800
      Sensor Shift High Resolution Mode 4/16 shots
      Photo Sony Alpha 7R IV Pentax KF
      ProcessorBIONZ XPRIME MII
      Max Image Resolution9504 x 63366000 x 4000
      Other Resolutions4608 x 3072, 3072 x 2048, 1920 x 1280
      Image Aspect Ratios1:1, 4:3, 3:2, 16:93:2
      Image File FormatJPEG, RAWJPEG, RAW
      JPEG Quality LevelsExtra fine, fine, standard)Best, better, good
      Bit Depth14-Bit14-Bit
      Color SpacesRGB, Adobe RGB
      Timelapse Recording
      White BalancePresets: Auto, Cloudy, Color Temperature, Custom, Daylight, Flash, Fluorescent (Cool White), Fluorescent (Day White), Fluorescent (Daylight), Fluorescent (Warm White), Incandescent, Shade, UnderwaterPresets: Auto, CTE, Cloudy, Daylight, Fluorescent, Fluorescent (Cool White), Fluorescent (Day White), Fluorescent (Warm White), Manual, Multi Auto WB, Shade, Tungsten
      Focus Sony Alpha 7R IV Pentax KF
      Focusing SystemFast Hybrid AF (Phase-detection / Contrast-detection)
      Autofocus ModesMulti-area
      Center
      Selective single-point
      Tracking
      Single
      Continuous
      Touch
      Face Detection
      Live View      		Multi-area
      Center
      Selective single-point
      Tracking
      Single
      Continuous
      Face Detection
      Live View
      Lens ServoAutomatic, Continuous-Servo AF, Direct Manual Focus, Manual Focus, Single-Servo AFAutomatic, Continuous-Servo AF, Single-Servo AF
      AF Detection Range-3 to +20 EV-3 to +18 EV
      Number of Focus Points56711
      Number of Cross-type Focus Points9
      Touch-to-Focus
      Live View Autofocus
      Animal Eye Detection
      Vehicle Tracking Mode
      Insect Tracking Mode
      Contrast Detection for Autofocus
      Phase Detection for Autofocus
      Focusing ScreenInterchangeable Natural-Bright-Matte III focusing screen
      Optics Sony Alpha 7R IV Pentax KF
      Lens MountSony EPentax KAF2
      Crop Factor1x1.5x
      Image Stabilization5-Axis Sensor ShiftSensor Shift
      Image Stabilization Compensation5.5 stops4.5 stops
      Digital Image Stabilization
      Screen Sony Alpha 7R IV Pentax KF
      Screen TypeTiltingFully Articulated
      Screen TechnologyTFT LCDTFT LCD
      Touch Screen
      Selfie & Vlogger Friendly LCD Screen
      Screen Size3.0"3.0"
      Screen Resolution1,440k dot1,037k dot
      Top LCD Screen
      Live View
      Live Composition
      Viewfinder Sony Alpha 7R IV Pentax KF
      ViewfinderElectronic (OLED)Optical (pentaprism)
      Viewfinder Size0.5"
      Viewfinder Coverage100%100%
      Viewfinder Magnification0.78x0.95x
      Viewfinder Magnification (35mm equivalent)0.78x0.63x
      Viewfinder Resolution5,760k dot
      Viewfinder Eyepoint23 mm
      Diopter Adjustment-4 to +3-2.5 to +1.5
      Shutter Sony Alpha 7R IV Pentax KF
      Shutter TypeElectronicElectronic
      Min Shutter Speed30 sec30 sec
      Max Shutter Speed (Mechanical or 1st Curtain)1/8000 sec1/6000 sec
      Max Continuous Shooting10.0 fps6.0 fps
      Continuous Shooting Resolution/fps/bufferUp to 10 fps at 61 MP for up to 68 Frames (JPEG)Electronic Shutter
      Up to 6 fps at 24.2 MP for up to 40 Frames (JPEG) / 10 Frames (Raw)
      Electronic Shutter
      Up to 3 fps at 24.2 MP for up to 100 Frames (JPEG) / 16 Frames (Raw)
      Flash Sony Alpha 7R IV Pentax KF
      Built-in Flash
      Flash ModesFlash off
      Autoflash
      Fill-flash
      Slow Sync.
      Rear Sync.
      Red-eye reduction
      Wireless
      Hi-speed sync.      		Auto
      auto w/redeye reduction
      flash on
      flash + redeye reduction
      slow sync
      trailing curtain sync
      manual
      Flash Range12.00 m at ISO 100
      Max Flash Sync Speed1/250 sec1/180 sec
      Flash Compensation-3 to +3 EV (1/3, 1/2 EV Steps)-2 to +1 EV
      External Flash Connectivity
      External Flash SystemS-TTLP-TTL
      External Flash ConnectionIntelligent Hot Shoe, PC TerminalHot Shoe, Wireless
      Exposure Sony Alpha 7R IV Pentax KF
      Exposure Metering ModesMulti
      Center-weighted
      Highlight-weighted
      Average
      Spot      		Multi
      Center-weighted
      Spot
      Exposure ModesAperture Priority, Manual, Program, Shutter PriorityAperture Priority, Auto, Manual, Program, Sensitivity Priority, Shutter Priority
      Metering Range-3 to +20 EV0 to +22 EV
      Exposure Compensation±5 EV (1/3 EV, 1/2 EV increments)±5 EV (1/3 EV, 1/2 EV increments)
      Exposure Bracketing ±5 EV (3, 5 shots at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV increments) ±5 EV (2, 3, 5 shots )
      Exposure LockCan be assigned to the AF/AE-L button
      DXO Sony Alpha 7R IV Pentax KF
      DxO Low Light ISO3344
      DxO Color Depth26.0
      DxO Dynamic Range14.8
      DxO Overall Score99
      Video Sony Alpha 7R IV Pentax KF
      Internal Recording ModesXAVC S
      4K UHD: 3840 x 2160 @ 23.98/25/29.97 fps [60 to 100 Mbps]
      Full HD: 1920 x 1080p @ 23.98/24/25/29.97/50/59.94/100 fps [16 to 100 Mbps]
      AVCHD
      Full HD: 1920 x 1080i @ 50/59.94 fps [17 to 24 Mbps]      		H.264/MPEG-4 AVC
      Full HD: 1920 x 1080 @ 24/25/30.00/50/60.00 fps
      HD: 1280 x 720 @ 50/60.00 fps
      Interval Recording
      Video FormatsMPEG-4, XAVC S, H.264MPEG-4, H.264
      Max Video Resolution3840 x 21601920 x 1080
      External Recording Modes4:2:2 8-Bit via HDMI
      UHD 4K (3840 x 2160) @ 23.98/24.00/25/29.97 fps
      1920 x 1080p @ 23.98/24.00/50/59.94 fps
      1920 x 1080i @ 50/59.94 fps
      Webcam Functionality
      Unlimited Video Recording
      Recording Limit13 hours25 min
      Terminals Sony Alpha 7R IV Pentax KF
      Audio I/O1 x 1/8" / 3.5 mm TRS Stereo Headphone Output
      1 x 1/8" / 3.5 mm TRS Stereo Microphone Input      		1 x 1/8" / 3.5 mm TRS Stereo Microphone Input
      Power I/O1 x USB-C Input/Output
      Other I/O1 x Sony Multi/Micro-USB Input/Output (Shared with Remote Input)
      1 x USB-C (USB 3.2 / 3.1 Gen 1) Input/Output (Shared with Power Input)
      1 x PC Sync Socket Output      		1 x Micro-USB (USB 2.0) Input
      USB SpeedUSB 3.2 Gen 1x1 (5 GBit/sec)USB 2.0 (480 Mbit/sec)
      HDMI Output Micro Mini
      SpeakerMonoMono
      Built-in MicrophoneStereoStereo
      Microphone Input
      Headphone Output
      Flash Sync Port
      Connectivity Sony Alpha 7R IV Pentax KF
      Built-in GPS
      Built-In Wi-Fi
      Wi-Fi VersionWi-Fi 5, 802.11ac/b/g/n, 2.4/5 GHz802.11b/g/n, 2.4 GHz
      Built-In Bluetooth
      NFC
      Mobile App Compatible: Android & iOS
      App Name: Image Sync
      Functionality: Adjust Settings, Remote Control
      *As of November, 2022: Check with manufacturer for the most up-to-date compatibility
      Remote Control via smartphone wired or wireless
      Environmental Sony Alpha 7R IV Pentax KF
      Environmental Sealing
      Operating Temperature32 to 104°F / 0 to 40°C14 to 104°F / -10 to 40°C
      Operating Humidity0 to 85%
      Physical Sony Alpha 7R IV Pentax KF
      Dimensions129 x 96 x 78 mm (5.08 x 3.78 x 3.07")126 x 93 x 74 mm (4.94 x 3.66 x 2.91")
      Weight (inc. batteries)665 g (1.47 lb / 23.46 oz)688 g (1.52 lb / 24.27 oz)
      Box Dimensions (LxWxH)9.5 x 6.1 x 5.5"8.3 x 6.9 x 5"
      Package Weight3.04 lb2.73 lb
      Power and Storage Sony Alpha 7R IV Pentax KF
      Battery PackNP-FZ100D-LI109
      Battery Life670 shots410 shots
      USB Charging
      Internal Storage
      External StorageDual Slot: SD/SDHC/SDXC (UHS-II)Single Slot: SD/SDHC/SDXC (UHS-I)
      Other Sony Alpha 7R IV Pentax KF
      Self Timer 2, 5 or 10 sec 2 or 12 secs, continuous
      Astro Tracer feature for Astrophotography
      Orientation Sensor
      Tripod Mounting Thread1 x 1/4"-20 Female (Bottom)1 x 1/4"-20 Female (Bottom)
      Accessory Mount1 x Hot Shoe Mount
      Material of ConstructionMagnesium Alloy
      Electronic Level Gauge


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