Side by side comparison and review of Pentax 645Z and Panasonic Lumix DC-S1. 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 | Panasonic Lumix DC-S1 |
|---|
| Product Type | Digital camera - 1080p - SLR with Live View mode, movie recording | Digital camera - 6K - mirrorless system |
|---|---|---|
| Lens Included | Body only | Body only |
| Height | 11.7 cm | 11 cm |
| Width | 15.6 cm | 14.89 cm |
| Depth | 12.3 cm | 9.67 cm |
| Weight | 1.47 kg | 899 g |
| Weight Details | Camera body only: 1.47 kg Camera with battery and memory card: 1.55 kg |
Camera body only: 899 g Camera with battery and memory card: 1.02 kg |
| Protection | Dust-resistant, water-resistant | Dust-resistant, splash-resistant |
| SENSOR | Pentax 645Z | Panasonic Lumix DC-S1 |
|---|
| Sensor Resolution | 51.4 Megapixel | 24.2 Megapixel |
|---|---|---|
| Optical Sensor Type | CMOS | CMOS |
| Total Pixels | 52,990,000 pixels | 25,280,000 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) | Supersonic Wave Filter (SWF) |
| Image Stabiliser | - | Optical (5-Axis Dual I.S. 2.0) |
| Built-in Optical Image Stabiliser | - | Yes |
| PROCESSOR | Pentax 645Z | Panasonic Lumix DC-S1 |
|---|
| Image Processor | - | Venus Engine |
|---|
| LENS | Pentax 645Z | Panasonic Lumix DC-S1 |
|---|
| Lens Mounting Type | Pentax 645AF | L-Mount |
|---|
| FOCUSING | Pentax 645Z | Panasonic Lumix DC-S1 |
|---|
| Auto Focus | TTL contrast and phase detection | TTL contrast detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 27 | 225 |
| Auto Focus Features | - | Focus Peaking function, Depth From Defocus (DFD) technology, Advanced Recognition technology |
| AE/AF Control | - | Face-priority AF, Subject-tracking AF, Touch Area AF, Eye detection AF, Predictive AI Servo AF |
| Face Detection | - | Eye Detect AF, face-priority AF function |
| VIEWFINDER | Pentax 645Z | Panasonic Lumix DC-S1 |
|---|
| Viewfinder Type | Optical - trapezoid prism | Electronic - OLED |
|---|---|---|
| Viewfinder Colour Support | - | Colour |
| Viewfinder Resolution | - | 5,760,000 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 +2 |
| Field of View Crop Factor | 1.3 | 1.0 |
| Features | - | Auto eye sensor, magnification ratio control |
| EXPOSURE & WHITE BALANCE | Pentax 645Z | Panasonic Lumix DC-S1 |
|---|
| ISO (Max) | 204800 | 51200 |
|---|---|---|
| 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 auto, ISO 102400, ISO 204800, ISO 100-51200 |
| Exposure Metering | Multi-segment, centre-weighted, spot | Multi-segment, centre-weighted, spot, highlight weighted |
| Exposure Metering Zones | - | 1728 |
| Exposure Modes | Programme, bulb, manual, aperture-priority, shutter-priority, ISO priority, shutter & aperture priority | Programme, automatic, manual, aperture-priority, shutter-priority |
| Bracketing Modes | - | Focus bracketing, white balance bracketing, aperture bracketing |
| Special Effects | Natural, bright, Vibrant, monochrome, Muted, landscape, portrait, Cross Process, Bleach Bypass, Radiant, Reversal Film | Sepia, Vivid, soft focus, natural, monochrome, Flat, landscape, portrait, miniature, Cross Process, Retro, Expressive, high dynamic, Bleach Bypass, High Key, Low Key, Toy effect, Star Filter, Impressive Art, One Point Colour, Dynamic Monochrome, Sunshine, Old Days, Toy Pop, Fantasy, Rough Monochrome, Silky Monochrome, Standard, L. Monochrome, L. Monochrome D, Cinelike D, Cinelike V, L. Classic Neo, L. Monochrome S, Like709, V-Log, Like2100 (HLG) |
| 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, cloudy, Flash, daylight, shade, 2500K - 10000K (100K steps) |
| Shutter Type | Electronic | Mechanical, electronic |
| Max Shutter Speed | 1/4000 sec | 1/16000 sec |
| Min Shutter Speed | 30 sec | 60 sec |
| Exposure Compensation | ±5 EV range, in 1/2 or 1/3 EV steps | ±5 EV range, in 1/3 EV steps |
| Auto Exposure Bracketing | - | 3, 5, 7 steps in 1/3, 2/3 or 1 EV steps |
| White Balance Bracketing | - | Yes |
| X-sync Speed | 1/125sec | 1/320 sec |
| Exposure Range | EV -1-21 (ISO 200) | EV 0-18 (ISO 100) |
| DISPLAY | Pentax 645Z | Panasonic Lumix DC-S1 |
|---|
| Type | 3.2" LCD display | 3.2" LCD display |
|---|---|---|
| Touch Screen | - | Yes |
| Display Format | 1,037,000 pixels | 2,100,000 pixels |
| Display Form Factor | Folding | Tilting (3-way) |
| Display Features | Display brightness control, display colour control | - |
| FLASH | Pentax 645Z | Panasonic Lumix DC-S1 |
|---|
| Camera Flash | - | External flash |
|---|---|---|
| Flash Modes | - | Auto mode, red-eye reduction, forced, slow sync |
| Red-Eye Reduction | - | Yes |
| VIDEOGRAPHY / CAMCORDER | Pentax 645Z | Panasonic Lumix DC-S1 |
|---|
| Digital Video Format | MJPEG, H.264 | - |
|---|---|---|
| Image Recording Format | JPEG, RAW, RAW + JPEG | JPEG, RAW, HLG Photo |
| Max Video Resolution | 1920 x 1080 | 5184 x 3456 |
| Audio Signal Format | - | Dolby Digital AC-3 (2 channel), Linear PCM, AAC |
| Microphone Operation Mode | - | Stereo |
| Microphone Features | - | Wind noise reduction |
| MEMORY | Pentax 645Z | Panasonic Lumix DC-S1 |
|---|
| Memory Card Slot | Dual SD card | SD card, XQD Memory 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, XQD Memory Card, SDHC UHS-II Memory Card, SDXC UHS-II Memory Card, CFexpress |
| Memory Card Included | No | No |
| Image Storage | - | 6000 x 4000 4272 x 2848 3024 x 2016 12000 x 8000 - High Resolution Mode 5328 x 4000 RAW 3792 x 2848 2688 x 2016 RAW 10656 x 8000 - High Resolution Mode 4000 x 4000 2848 x 2848 2016 x 2016 RAW 8000 x 8000 - High Resolution Mode 6000 x 3000 6000 x 2208 |
| BATTERY AND CHARGING | Pentax 645Z | Panasonic Lumix DC-S1 |
|---|
| Battery Type | Pentax D-Li90 Lithium Ion | Lithium Ion - manufacturer-specific |
|---|---|---|
| Details | Pentax D-Li90 Li-ion rechargeable battery (included) | Li-ion rechargeable battery - 3050 mAh (included) |
| Battery Life | Photo shooting - 650 shots Playback - 6.67 hours |
Photo shooting - 380 shots (LCD Monitor on) Photo shooting - 360 shots (EVF on) Photo shooting - 1100 shots (Power Save LVF Shooting mode) |
| CONNECTIONS | Pentax 645Z | Panasonic Lumix DC-S1 |
|---|
| Interface | HDMI, USB 3.0 | HDMI, USB 3.1, IEEE 802.11a/b/g/n/ac, Bluetooth 4.2 |
|---|---|---|
| Print Standard | - | Direct print, Exif Print support, PictBridge support |
| 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 |
USB 3.1 Gen 1 (USB Type-C) HDMI output (19 pin HDMI Type A) Microphone (mini-phone 3.5mm) Remote control (sub-mini phone 2.5 mm) Headphones (mini-phone stereo 3.5 mm) |
| FEATURES | Pentax 645Z | Panasonic Lumix DC-S1 |
|---|
| Self-Timer Delay | 2sec, 12sec | 10 sec, 2sec |
|---|---|---|
| Continuous Shooting Speed | 3 frames per second, 4.5 frames per second | 2 frames per second, 5 frames per second, 9 frames per second, 30 frames per second, 6 frames per second, 60 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 | Audio recording, date/time stamp, USB powered, USB charging, Light Speed AF, primary colour filter, Focus Stacking, Post Focus function, Touch AE function, white balance shift |
| OTHERS | Pentax 645Z | Panasonic Lumix DC-S1 |
|---|
| Included Accessories | Carrying strap, battery charger, body cap, eyecup, shoe cap | Battery charger, body cap, shoulder strap, AC power adaptor, battery grip terminal cover, cable holder, hot shoe cover, USB-C cable, USB-C to USB-A cable, flash synchro socket cap |
|---|---|---|
| Software | Drivers & Utilities | SILKYPIX Developer Studio, LUMIX Tether, Panasonic PHOTOfunSTUDIO 10.1 Premium Edition |
| Max Operating Temperature | - | 40 °C |
| Min Operating Temperature | - | -10 °C |
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