Side by side comparison and review of Pentax 645Z and Fujifilm X Series X-T3. 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 | Fujifilm X Series X-T3 |
|---|
| Product Type | Digital camera - 1080p - SLR with Live View mode, movie recording | Digital camera - 4K - mirrorless system |
|---|---|---|
| Lens Included | Body only | Body only |
| Height | 11.7 cm | 9.28 cm |
| Width | 15.6 cm | 13.25 cm |
| Depth | 12.3 cm | 5.88 cm |
| Weight | 1.47 kg | 489 g |
| Weight Details | Camera body only: 1.47 kg Camera with battery and memory card: 1.55 kg |
Camera body only: 489 g Camera with battery and memory card: 539 g |
| Body Material | - | Magnesium alloy |
| Enclosure Colour | - | Black | Silver |
| Protection | Dust-resistant, water-resistant | Weatherproof, freezeproof, dust-resistant |
| SENSOR | Pentax 645Z | Fujifilm X Series X-T3 |
|---|
| Sensor Resolution | 51.4 Megapixel | 26.1 Megapixel |
|---|---|---|
| Optical Sensor Type | CMOS | X-Trans CMOS 4 |
| Total Pixels | 52,990,000 pixels | - |
| Effective Sensor Resolution | 51,400,000 pixels | 26,100,000 pixels |
| Optical Sensor Size | - | APS-C (23.5 x 15.6 mm) |
| Frame Rate (Max Resolution) | 30 fps | 60 fps |
| Sensor Dust Reduction | Yes | Yes |
| Sensor Features | Dust Reduction (image sensor vibration) | Dust Reduction (image sensor vibration) |
| PROCESSOR | Pentax 645Z | Fujifilm X Series X-T3 |
|---|
| Image Processor | - | X-Processor 4 |
|---|
| LENS | Pentax 645Z | Fujifilm X Series X-T3 |
|---|
| Lens Mounting Type | Pentax 645AF | Fujifilm X Mount |
|---|
| FOCUSING | Pentax 645Z | Fujifilm X Series X-T3 |
|---|
| Auto Focus | TTL contrast and phase detection | TTL contrast and phase detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 27 | 91 |
| AE/AF Control | - | Face-priority AF, Subject-tracking AF, Eye detection AF, Zone AF |
| Face Detection | - | Eye Detect AF, Face Detection AF/AE |
| VIEWFINDER | Pentax 645Z | Fujifilm X Series X-T3 |
|---|
| Viewfinder Type | Optical - trapezoid prism | Electronic - OLED |
|---|---|---|
| Viewfinder Colour Support | - | Colour |
| Viewfinder Diagonal Size | - | 0.5" |
| Viewfinder Resolution | - | 3,690,000 pixels |
| Optical Viewfinder Field Coverage | 98% | 100% |
| Optical Viewfinder Magnification | 0.62x | 0.75x |
| Optical Viewfinder Dioptric Correction Range | -3.5 to +2 | -4 to +2 |
| Field of View Crop Factor | 1.3 | - |
| Features | - | Auto eye sensor |
| EXPOSURE & WHITE BALANCE | Pentax 645Z | Fujifilm X Series X-T3 |
|---|
| ISO (Max) | 204800 | 51200 |
|---|---|---|
| Native ISO | 100-204800 | 160-12800 |
| Extended ISO (Max) | - | 25600 (H1), 51200 (H2) |
| Extended ISO (Min) | - | 80 (L1), 105 (L2), 125 (L3) |
| Light Sensitivity | ISO auto (100-204800), ISO 100-248000 | ISO 100, ISO 125, ISO 80, ISO auto, ISO 51200, ISO 25600, ISO 160-12800 |
| Exposure Metering | Multi-segment, centre-weighted, spot | Multi-segment, centre-weighted, spot, average |
| Exposure Metering Zones | - | 256 |
| 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, Film Simulation Bracketing, focus bracketing, ISO sensitivity bracketing, white balance bracketing |
| Special Effects | Natural, bright, Vibrant, monochrome, Muted, landscape, portrait, Cross Process, Bleach Bypass, Radiant, Reversal Film | Soft focus, miniature, Film Simulation, partial colour, Toy camera, High Key, Low Key, Pop Colour, Dynamic tone |
| 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) | Fine, incandescent, shade, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), Underwater, 2500K - 10000K |
| Shutter Type | Electronic | Mechanical, electronic |
| 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 1/3 EV steps |
| White Balance Bracketing | - | Yes |
| X-sync Speed | 1/125sec | 1/250sec |
| Exposure Range | EV -1-21 (ISO 200) | - |
| DISPLAY | Pentax 645Z | Fujifilm X Series X-T3 |
|---|
| Type | 3.2" LCD display | 3" LCD display |
|---|---|---|
| Touch Screen | - | Yes |
| Display Format | 1,037,000 pixels | 1,040,000 pixels |
| Display Form Factor | Folding | Tilting (3-way) |
| Display Features | Display brightness control, display colour control | Display brightness control, display colour control |
| FLASH | Pentax 645Z | Fujifilm X Series X-T3 |
|---|
| Camera Flash | - | Detachable flash |
|---|---|---|
| Guide Number (m / ISO 100) | - | 8 |
| Flash Modes | - | Fill-in mode, rear curtain sync, slow synchro, auto mode, flash OFF mode, red-eye reduction |
| Red-Eye Reduction | - | Yes |
| Features | - | AF illuminator |
| External Flash Name | - | Fujifilm EF-X8 |
| VIDEOGRAPHY / CAMCORDER | Pentax 645Z | Fujifilm X Series X-T3 |
|---|
| Digital Video Format | MJPEG, H.264 | H.264, MOV, HEVC, H.265 |
|---|---|---|
| Image Recording Format | JPEG, RAW, RAW + JPEG | JPEG, RAW, RAW + JPEG |
| Max Video Resolution | 1920 x 1080 | 4096 x 2160 |
| Microphone Operation Mode | - | Stereo |
| MEMORY | Pentax 645Z | Fujifilm X Series X-T3 |
|---|
| Memory Card Slot | Dual SD card | 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 |
| Memory Card Included | No | No |
| Memory Card Max Supported Size | - | 512 GB |
| Image Storage | - | 6240 x 4160 6240 x 3512 4160 x 4160 4416 x 2944 4416 x 2488 2944 x 2944 3120 x 2080 3120 x 1760 2080 x 2080 |
| Video Capture | - | 4096 x 2160 p - 59.94 fps - 400Mbps 3840 x 2160 p 2048 x 1080 p 1920 x 1080 p |
| BATTERY AND CHARGING | Pentax 645Z | Fujifilm X Series X-T3 |
|---|
| Battery Type | Pentax D-Li90 Lithium Ion | Fujifilm NP-W126S Lithium Ion |
|---|---|---|
| Details | Pentax D-Li90 Li-ion rechargeable battery (included) | Fujifilm NP-W126S Li-ion rechargeable battery (included) |
| Battery Life | Photo shooting - 650 shots Playback - 6.67 hours |
Photo shooting - 390 shots Video recording - 55 minutes (4K resolution) Video recording - 75 minutes (Full HD resolution) |
| CONNECTIONS | Pentax 645Z | Fujifilm X Series X-T3 |
|---|
| Interface | HDMI, USB 3.0 | HDMI, USB 3.1, IEEE 802.11b/g/n, Bluetooth 4.2 |
|---|---|---|
| Connectivity Features | - | Remote control via mobile devices, Wireless Image Transfer |
| Print Standard | - | Exif Print support |
| Tripod Mount Connection Point | - | Yes |
| 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 Gen 1 (USB Type-C) HDMI output (19 pin micro HDMI Type D) Microphone (mini-phone 3.5mm) Headphones (mini-phone stereo 3.5 mm) Remote control (sub-mini phone 2.5 mm) |
| FEATURES | Pentax 645Z | Fujifilm X Series X-T3 |
|---|
| Self-Timer Delay | 2sec, 12sec | 10 sec, 2sec |
|---|---|---|
| Continuous Shooting Speed | 3 frames per second, 4.5 frames per second | 8 frames per second, 5.7 frames per second, 20 frames per second, 10 frames per second, 30 frames per second, 11 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 | AE lock, AF lock, Dynamic Range Adjustment, primary colour filter |
| OTHERS | Pentax 645Z | Fujifilm X Series X-T3 |
|---|
| Included Accessories | Carrying strap, battery charger, body cap, eyecup, shoe cap | Body cap, shoulder strap, shoe cap, protective cover, strap clip, battery grip terminal cover, sync terminal cover, clip attaching tool |
|---|---|---|
| Software | Drivers & Utilities | - |
| Max Operating Temperature | - | 40 °C |
| Min Operating Temperature | - | -10 °C |
| Service & Support | - | Limited warranty - 1 year |
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