Detailed comparison and review of Pentax 645Z and Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom. With our comprehensive overview, you can simply compare design, sensors, proximity characteristics, memory capacities, but also other key features of both cameras and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the camera that best fits your needs and expectations.
| DESIGN AND DIMENSIONS | Pentax 645Z | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Product Type | Digital camera - 1080p - SLR with Live View mode, movie recording | Digital camera - 4K - mirrorless system |
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| Lens Included | Body only | Body only |
| Height | 11.7 cm | 9.56 cm |
| Width | 15.6 cm | 12.69 cm |
| Depth | 12.3 cm | 7.37 cm |
| Weight | 1.47 kg | 650 g |
| Weight Details | Camera body only: 1.47 kg Camera with battery and memory card: 1.55 kg |
Camera with battery and memory card: 650 g |
| Enclosure Colour | - | Black |
| Protection | Dust-resistant, water-resistant | Dust-resistant, moisture-resistant |
| Digital Zoom | - | 4x |
| SENSOR | Pentax 645Z | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Sensor Resolution | 51.4 Megapixel | 24.2 Megapixel |
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| Optical Sensor Type | CMOS | Exmor R CMOS |
| Total Pixels | 52,990,000 pixels | 25,300,000 pixels |
| Effective Sensor Resolution | 51,400,000 pixels | 24,200,000 pixels |
| Optical Sensor Size | - | Full Frame (35.6 x 23.8 mm) |
| Frame Rate (Max Resolution) | 30 fps | 30 fps |
| Sensor Dust Reduction | Yes | Yes |
| Sensor Features | Dust Reduction (image sensor vibration) | Dust Reduction (image sensor vibration), Anti-Dust coating |
| Image Stabiliser | - | Optical (5-axis Steady Shot) |
| Built-in Optical Image Stabiliser | - | Yes |
| Sensors | - | Digital level metre |
| PROCESSOR | Pentax 645Z | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Image Processor | - | BIONZ X |
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| LENS | Pentax 645Z | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Type | - | Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Focal Length Equivalent to 35mm Camera | - | 36 - 157.5mm |
| Focus Adjustment | - | Automatic, manual |
| Min Focus Distance | - | 38 cm |
| Max View Angle | - | 84 degree(s) |
| Zoom Adjustment | - | Manual |
| Lens Construction | - | 14 groups / 17 elements |
| Filter Size | - | 77 mm |
| Lens Mounting Type | Pentax 645AF | Sony E-mount |
| Features | - | ED glass, aspherical lens, dustproof, AA (advanced aspherical) lens, moisture-resistant, Direct Drive Super Sonic wave Motor (DDSSM), fluorine coating, Nano AR Coating |
| FOCUSING | Pentax 645Z | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Auto Focus | TTL contrast and phase detection | TTL contrast and phase detection |
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| Auto Focus Points (Zones) Qty | 27 | 693 |
| Auto Focus Features | - | Focus Peaking function |
| AE/AF Control | - | Face-priority AF, Touch Area AF |
| Face Detection | - | Face-priority AF function |
| VIEWFINDER | Pentax 645Z | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Viewfinder Type | Optical - trapezoid prism | Electronic - OLED |
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| Viewfinder Colour Support | - | Colour |
| Viewfinder Diagonal Size | - | 0.5" |
| Viewfinder Resolution | - | 2,359,296 pixels |
| Optical Viewfinder Field Coverage | 98% | 100% |
| Optical Viewfinder Magnification | 0.62x | 0.78x |
| Optical Viewfinder Dioptric Correction Range | -3.5 to +2 | -4 to +3 |
| Field of View Crop Factor | 1.3 | - |
| Features | - | Viewfinder brightness control, colour temperature control |
| EXPOSURE & WHITE BALANCE | Pentax 645Z | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| ISO (Max) | 204800 | 204800 |
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| Native ISO | 100-204800 | 100-51200 |
| Extended ISO (Max) | - | 204800 |
| Extended ISO (Min) | - | 50 |
| Light Sensitivity | ISO auto (100-204800), ISO 100-248000 | ISO 50, ISO 102400, ISO 204800, ISO 100-51200 |
| Exposure Metering | Multi-segment, centre-weighted, spot | Multi-segment, centre-weighted, spot |
| Exposure Metering Zones | - | 1200 |
| Exposure Modes | Programme, bulb, manual, aperture-priority, shutter-priority, ISO priority, shutter & aperture priority | Programme, automatic, manual, aperture-priority, shutter-priority |
| Bracketing Modes | - | Flash Exposure Bracketing, white balance bracketing |
| Shooting Programs | - | Landscape, portrait mode, macro, night portrait, night scene, sports mode, sunset |
| Special Effects | Natural, bright, Vibrant, monochrome, Muted, landscape, portrait, Cross Process, Bleach Bypass, Radiant, Reversal Film | Black & White, Sepia, Neutral, Vivid, sunset, landscape, portrait, clear, deep, light, autumn leaves, Retro, partial colour, Toy camera, Posterisation, High contrast monochrome, Pop Colour, Rich-tone monochrome, Soft High-key, Night Scene, Standard, Style Box, Posterisation (B/W) |
| White Balance | Custom, automatic, presets | Custom, automatic, presets |
| White Balance Presets | Tungsten light, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (warm white), fluorescent light (daylight colour), fluorescent light (daylight white) | Incandescent, fluorescent, cloudy, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), Underwater, 2500K - 9900K, fluorescent light (daylight white) |
| Shutter Type | Electronic | Mechanical electronically-controlled |
| Max Shutter Speed | 1/4000 sec | 1/8000 sec |
| Min Shutter Speed | 30 sec | 30 sec |
| Exposure Compensation | ±5 EV range, in 1/2 or 1/3 EV steps | ±5 EV range, in 1/2 or 1/3 EV steps |
| Auto Exposure Bracketing | - | 3, 5, 9 steps in 1/3, 1/2, 2/3, 1, 2 or 3 EV steps |
| White Balance Bracketing | - | Yes |
| X-sync Speed | 1/125sec | 1/250sec |
| Exposure Range | EV -1-21 (ISO 200) | EV -3-20 (ISO 100) |
| DISPLAY | Pentax 645Z | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Type | 3.2" LCD display | 2.95" LCD display |
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| Touch Screen | - | Yes |
| Display Format | 1,037,000 pixels | 921,600 pixels |
| Display Form Factor | Folding | Folding |
| Display Features | Display brightness control, display colour control | Display brightness control |
| VIDEOGRAPHY / CAMCORDER | Pentax 645Z | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Digital Video Format | MJPEG, H.264 | AVCHD, XAVC S |
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| Image Recording Format | JPEG, RAW, RAW + JPEG | JPEG, RAW, RAW + JPEG |
| Max Video Resolution | 1920 x 1080 | 3840 x 2160 |
| Audio Signal Format | - | Dolby Digital AC-3 (2 channel), Linear PCM |
| Microphone Operation Mode | - | Stereo |
| MEMORY | Pentax 645Z | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Memory Card Slot | Dual SD card | Memory Stick PRO Duo card, SD card |
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| Supported Memory Cards | SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card | SD Memory Card, Memory Stick PRO Duo, SDXC Memory Card, SDHC Memory Card, Memory Stick PRO-HG Duo, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card, SDHC UHS-II Memory Card, SDXC UHS-II Memory Card |
| Memory Card Included | No | No |
| Image Storage | - | 6000 x 4000 3936 x 2624 3008 x 2000 1968 x 1312 6000 x 3376 3936 x 2216 3008 x 1688 1968 x 1112 |
| Video Capture | - | XAVC S - 3840 x 2160 p - 30 fps - 100Mbps XAVC S - 3840 x 2160 p - 24 fps - 100Mbps XAVC S - 3840 x 2160 p - 30 fps - 60Mbps XAVC S - 3840 x 2160 p - 24 fps - 60Mbps XAVC S - 1920 x 1080 p - 120 fps - 100Mbps XAVC S - 1920 x 1080 p - 120 fps - 60Mbps XAVC S - 1920 x 1080 p - 60 fps - 50Mbps XAVC S - 1920 x 1080 p - 30 fps - 50Mbps XAVC S - 1920 x 1080 p - 24 fps - 50Mbps XAVC S - 1920 x 1080 p - 60 fps - 25Mbps XAVC S - 1920 x 1080 p - 30 fps - 16Mbps AVCHD - 1920 x 1080 i - 60 fps - 24Mbps AVCHD - 1920 x 1080 i - 60 fps - 17Mbps XAVC S - 3840 x 2160 p - 25 fps - 100Mbps XAVC S - 3840 x 2160 p - 25 fps - 60Mbps XAVC S - 1920 x 1080 p - 100 fps - 100Mbps XAVC S - 1920 x 1080 p - 100 fps - 60Mbps XAVC S - 1920 x 1080 p - 50 fps - 50Mbps XAVC S - 1920 x 1080 p - 25 fps - 50Mbps AVCHD - 1920 x 1080 i - 50 fps - 24Mbps AVCHD - 1920 x 1080 i - 50 fps - 17Mbps |
| BATTERY AND CHARGING | Pentax 645Z | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Battery Type | Pentax D-Li90 Lithium Ion | Sony NP-FZ100 Lithium Ion |
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| Details | Pentax D-Li90 Li-ion rechargeable battery (included) | Sony NP-FZ100 Li-ion rechargeable battery - 2280 mAh (included) |
| Battery Life | Photo shooting - 650 shots Playback - 6.67 hours |
Photo shooting - 710 shots (LCD Monitor on) Photo shooting - 610 shots (EVF on) Video recording - 2.08 hours (LCD Monitor on) Voice recording - 1.92 hours (EVF on) |
| CONNECTIONS | Pentax 645Z | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Interface | HDMI, USB 3.0 | HDMI, USB 3.1, IEEE 802.11b/g/n, NFC (Near Field Communication), Bluetooth 4.1 |
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| Connectivity Features | - | Remote control via mobile devices, remote live view, Wireless Image Transfer |
| Print Standard | - | DPOF support, Exif Print support, PRINT Image Matching |
| Flash Terminal | Hot shoe | Hot shoe |
| Connector Type | USB 3.0 (24 pin Micro-USB-C) HDMI output (19 pin micro HDMI Type D) Microphone (mini-phone stereo 3.5 mm) DC power input |
USB 3.1 (USB Type-C) HDMI output (19 pin micro HDMI Type D) Microphone (mini-phone stereo 3.5 mm) Headphones (mini-phone stereo 3.5 mm) |
| FEATURES | Pentax 645Z | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Self-Timer Delay | 2sec, 12sec | 10 sec, 2sec, 5 sec |
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| Continuous Shooting Speed | 3 frames per second, 4.5 frames per second | 8 frames per second, 10 frames per second |
| HDR Mode | - | Auto HDR mode |
| Additional Features | RGB primary colour filter, interval shooting mode, peripheral illumination correction, Eye-Fi Card Ready, NR Slow Shutter, High ISO NR, Lateral Chromatic Aberration Correction, distortion correction function, anti-aliasing filter simulator, diffraction correction | Built-in speaker, sharpness control, digital image rotation, camera orientation detection, histogram display, saturation control, shadow point display, highlight point display, takes photos while film recording, contrast control, Dynamic Range Optimizer, USB charging, built-in help guide, Dolby Digital Stereo Creator, Intelligent AUTO (iAUTO), Clear Image Zoom, noise reduction over long exposures, Lens Distortion Correction, high ISO speed noise reduction, PlayMemories Camera Apps support, silent shooting, BRAVIA Sync function, PhotoTV HD, GPS via mobile, S-Log2 gamma setting, peripheral shading correction, chromatic aberration correction, anti-flicker, Hybrid Log-Gamma (HLG) recording, S-Log3 gamma setting |
| OTHERS | Pentax 645Z | Sony Alpha7 III ILCE-7M3 + Zoom lens 24 - 105 mm - f/4.0 FE G OSS - zoom |
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| Included Accessories | Carrying strap, battery charger, body cap, eyecup, shoe cap | Eyepiece cover, lens hood, dust cap, body cap, shoulder strap, AC power adaptor, shoe cap, micro-USB cable |
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| Software | Drivers & Utilities | - |
| Max Operating Temperature | - | 40 °C |
| Min Operating Temperature | - | 0 °C |
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