Side by side comparison and review of Pentax 645Z and Sony Alpha1 ILCE-1. Compare design, sensors, zoom functions, batteries and other key specifications and features to simplify the choice of your perfect digital camera. Our goal is to make it easier for you to decide on the camera that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Pentax 645Z | Sony Alpha1 ILCE-1 |
|---|
| Product Type | Digital camera - 1080p - SLR with Live View mode, movie recording | Digital camera - 8K - mirrorless system |
|---|---|---|
| Lens Included | Body only | Body only |
| Height | 11.7 cm | 9.69 cm |
| Width | 15.6 cm | 12.89 cm |
| Depth | 12.3 cm | 8.08 cm |
| Weight | 1.47 kg | 652 g |
| Weight Details | Camera body only: 1.47 kg Camera with battery and memory card: 1.55 kg |
Camera body only: 652 g Camera with battery and memory card: 737 g |
| Body Material | - | Magnesium alloy |
| Enclosure Colour | - | Black |
| Protection | Dust-resistant, water-resistant | - |
| SENSOR | Pentax 645Z | Sony Alpha1 ILCE-1 |
|---|
| Sensor Resolution | 51.4 Megapixel | 50.1 Megapixel |
|---|---|---|
| Optical Sensor Type | CMOS | Exmor RS CMOS |
| Total Pixels | 52,990,000 pixels | 50,500,000 pixels |
| Effective Sensor Resolution | 51,400,000 pixels | 50,100,000 pixels |
| Optical Sensor Size | - | Full Frame (35.9 x 24 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, APS-C compatible mode |
| Image Stabiliser | - | Optical (5-axis image sensor shift mechanism) |
| Built-in Optical Image Stabiliser | - | Yes |
| PROCESSOR | Pentax 645Z | Sony Alpha1 ILCE-1 |
|---|
| Image Processor | - | BIONZ XR |
|---|
| LENS | Pentax 645Z | Sony Alpha1 ILCE-1 |
|---|
| Lens Mounting Type | Pentax 645AF | Sony E-mount |
|---|
| FOCUSING | Pentax 645Z | Sony Alpha1 ILCE-1 |
|---|
| Auto Focus | TTL contrast and phase detection | TTL contrast and phase detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 27 | 759 |
| Auto Focus Features | - | Focus Peaking function |
| AE/AF Control | - | Subject-tracking AF, Eye detection AF, Predictive AI Servo AF, Zone AF |
| Face Detection | - | Eye Detect AF, Pet Detection |
| VIEWFINDER | Pentax 645Z | Sony Alpha1 ILCE-1 |
|---|
| Viewfinder Type | Optical - trapezoid prism | Built-in - electronic |
|---|---|---|
| Viewfinder Colour Support | - | Colour |
| Viewfinder Diagonal Size | - | 0.64" |
| Viewfinder Resolution | - | 9,437,184 pixels |
| Optical Viewfinder Field Coverage | 98% | 100% |
| Optical Viewfinder Magnification | 0.62x | 0.9x |
| Optical Viewfinder Dioptric Correction Range | -3.5 to +2 | -4 to +3 |
| Field of View Crop Factor | 1.3 | 1.0 |
| EXPOSURE & WHITE BALANCE | Pentax 645Z | Sony Alpha1 ILCE-1 |
|---|
| ISO (Max) | 204800 | 102400 |
|---|---|---|
| Native ISO | 100-204800 | - |
| Extended ISO (Max) | - | 102400 |
| Extended ISO (Min) | - | 50 |
| Light Sensitivity | ISO auto (100-204800), ISO 100-248000 | ISO 50, ISO auto, ISO 102400, ISO 100-32000 |
| Exposure Metering | Multi-segment, centre-weighted, spot | Multi-segment, centre-weighted, spot, average, highlight-weighted |
| Exposure Metering Zones | - | 1200 |
| Exposure Modes | Programme, bulb, manual, aperture-priority, shutter-priority, ISO priority, shutter & aperture priority | Bulb, automatic, manual, aperture-priority, shutter-priority |
| Bracketing Modes | - | Dynamic Range Bracketing, white balance bracketing |
| Special Effects | Natural, bright, Vibrant, monochrome, Muted, landscape, portrait, Cross Process, Bleach Bypass, Radiant, Reversal Film | - |
| 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, Underwater, 2500K - 9900K |
| Shutter Type | Electronic | Electronic, mechanical electronically-controlled |
| Max Shutter Speed | 1/4000 sec | 1/32000 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 |
| X-sync Speed | 1/125sec | 1/200sec, 1/500 sec, 1/400 sec, 1/250sec |
| Exposure Range | EV -1-21 (ISO 200) | EV -3-20 (ISO 100) |
| DISPLAY | Pentax 645Z | Sony Alpha1 ILCE-1 |
|---|
| Type | 3.2" LCD display | 3" LCD display |
|---|---|---|
| Touch Screen | - | Yes |
| Display Format | 1,037,000 pixels | 1,440,000 pixels |
| Display Form Factor | Folding | Folding |
| Display Features | Display brightness control, display colour control | Display brightness control |
| VIDEOGRAPHY / CAMCORDER | Pentax 645Z | Sony Alpha1 ILCE-1 |
|---|
| Digital Video Format | MJPEG, H.264 | H.264, XAVC S, H.265, XAVC HS |
|---|---|---|
| Image Recording Format | JPEG, RAW, RAW + JPEG | JPEG, RAW, MPF, HEIF |
| Max Video Resolution | 1920 x 1080 | 7680 x 4320 |
| Audio Signal Format | - | Linear PCM, AAC |
| Microphone Operation Mode | - | Stereo |
| MEMORY | Pentax 645Z | Sony Alpha1 ILCE-1 |
|---|
| Memory Card Slot | Dual SD card | Dual CFexpress / SD card |
|---|---|---|
| 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, SDXC Memory Card, SDHC Memory Card, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card, SDHC UHS-II Memory Card, SDXC UHS-II Memory Card, CFexpress |
| Memory Card Included | No | No |
| Image Storage | - | 8640 x 5760 5616 x 3744 4320 x 2880 5616 x 3744 - APS-C mode 4320 x 2880 - APS-C mode 7680 x 5760 4992 x 3744 3840 x 2880 4992 x 3744 - APS-C mode 3840 x 2880 - APS-C mode 8760 x 4864 5616 x 3160 4320 x 2432 5616 x 3160 - APS-C mode 4320 x 2432 - APS-C mode 5760 x 5760 3744 x 3744 2880 x 2880 3744 x 3744 - APS-C mode 2880 x 2880 - APS-C mode |
| Video Capture | - | XAVC HS - 7680 x 4320 p - 30 fps - 400Mbps XAVC HS - 7680 x 4320 p - 24 fps - 400Mbps XAVC HS - 7680 x 4320 p - 25 fps - 400Mbps XAVC HS - 3840 x 2160 p - 24 - 120 fps XAVC S - 3840 x 2160 p - 24 - 120 fps XAVC S - 1920 x 1080 p - 24 - 120 fps |
| BATTERY AND CHARGING | Pentax 645Z | Sony Alpha1 ILCE-1 |
|---|
| Battery Type | Pentax D-Li90 Lithium Ion | Sony NP-FZ100 Lithium Ion |
|---|---|---|
| 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 - 430 shots (LCD Monitor on) Photo shooting - 530 shots (EVF on) Video recording - 150 minutes (LCD Monitor on) Video recording - 145 minutes (EVF on) |
| CONNECTIONS | Pentax 645Z | Sony Alpha1 ILCE-1 |
|---|
| Interface | HDMI, USB 3.0 | HDMI, USB-C, NFC (Near Field Communication), IEEE 802.11a/b/g/n/ac, Bluetooth 5.0 |
|---|---|---|
| Connectivity Features | - | Remote control via mobile devices, remote live view |
| Print Standard | - | Exif Print support, PRINT Image Matching |
| Flash Terminal | Hot shoe | Hot shoe, PC terminal |
| 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 |
HDMI output (19 pin micro HDMI Type D) Microphone (mini-phone stereo 3.5 mm) Headphones (mini-phone stereo 3.5 mm) Network (RJ-45) USB / AV output (micro-USB) USB (USB Type-C) |
| FEATURES | Pentax 645Z | Sony Alpha1 ILCE-1 |
|---|
| Self-Timer Delay | 2sec, 12sec | 10 sec, 2sec, 5 sec |
|---|---|---|
| Continuous Shooting Speed | 3 frames per second, 4.5 frames per second | 8 frames per second, 3 frames per second, 20 frames per second, 10 frames per second, 30 frames per second, 6 frames per second, 15 frames per second |
| 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, RGB primary colour filter, AE lock, AF lock, interval shooting mode, Dynamic Range Optimizer, USB charging, Chromatic Aberration Compensation (CAC), Intelligent AUTO (iAUTO), Clear Image Zoom, noise reduction over long exposures, Lens Distortion Correction, high ISO speed noise reduction, silent shooting, BRAVIA Sync function, PhotoTV HD, GPS via mobile, peripheral shading correction, Flickering Reduction function |
| OTHERS | Pentax 645Z | Sony Alpha1 ILCE-1 |
|---|
| Included Accessories | Carrying strap, battery charger, body cap, eyecup, shoe cap | Battery charger, body cap, shoulder strap, eyecup, shoe cap, cable protector, USB-C to USB-A cable |
|---|---|---|
| Software | Drivers & Utilities | - |
| Max Operating Temperature | - | 40 °C |
| Min Operating Temperature | - | 0 °C |
| Service & Support | - | Limited warranty - parts and labour - 1 year |
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