Side by side comparison and review of Pentax KP and Sony Alpha7R IV ILCE-7RM4. 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 KP | Sony Alpha7R IV ILCE-7RM4 |
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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 | 10.1 cm | 9.64 cm |
Width | 13.15 cm | 12.89 cm |
Depth | 7.6 cm | 7.75 cm |
Weight | 642 g | 665 g |
Weight Details | Camera body only: 642 g Camera with battery and memory card: 703 g |
Camera body only: Camera with battery and memory card: 665 g |
Body Material | Magnesium alloy | - |
Enclosure Colour | Black | Black |
Protection | Weatherproof, freezeproof, dust-resistant | - |
SENSOR | Pentax KP | Sony Alpha7R IV ILCE-7RM4 |
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Sensor Resolution | 24.32 Megapixel | 61 Megapixel |
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Optical Sensor Type | CMOS | Exmor R CMOS |
Total Pixels | 24,960,000 pixels | 62,500,000 pixels |
Effective Sensor Resolution | 24,320,000 pixels | 61,000,000 pixels |
Optical Sensor Size | APS-C (23.5 x 15.6 mm) | Full Frame (35.7 x 23.8 mm) |
Frame Rate (Max Resolution) | 60 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 (image sensor shift mechanism) | Optical (5-axis Steady Shot) |
Built-in Optical Image Stabiliser | Yes | Yes |
Sensors | Digital level metre | Digital level metre |
PROCESSOR | Pentax KP | Sony Alpha7R IV ILCE-7RM4 |
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Image Processor | PRIME IV | BIONZ X |
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LENS | Pentax KP | Sony Alpha7R IV ILCE-7RM4 |
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Lens Mounting Type | Pentax KAF2 | Sony E-mount |
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FOCUSING | Pentax KP | Sony Alpha7R IV ILCE-7RM4 |
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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 | 567 |
Auto Focus Features | Focus Peaking function | Predictive Focus Control, Focus Priority in Aperture Drive |
AE/AF Control | Face-priority AF, Subject-tracking AF | Zone AF, Real-time Eye AF, Real-time Tracking AF |
Face Detection | Face-priority AF function | Eye Detect AF, face-priority AF function |
VIEWFINDER | Pentax KP | Sony Alpha7R IV ILCE-7RM4 |
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Viewfinder Type | Optical - fixed eye-level pentaprism | Electronic - OLED |
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Viewfinder Colour Support | - | Colour |
Viewfinder Diagonal Size | - | 0.5" |
Viewfinder Resolution | - | 5,760,000 pixels |
Optical Viewfinder Field Coverage | 100% | 100% |
Optical Viewfinder Magnification | 0.95x | 0.78x |
Optical Viewfinder Dioptric Correction Range | -2.5 to +1.5 | -4 to +3 |
Interchangeable Focusing Screens | Yes | - |
Features | - | Viewfinder brightness control, colour temperature control |
EXPOSURE & WHITE BALANCE | Pentax KP | Sony Alpha7R IV ILCE-7RM4 |
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ISO (Max) | 819200 | 32000 |
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Native ISO | 100-819200 | 100-32000 |
Extended ISO (Max) | - | 102400 |
Extended ISO (Min) | - | 50 |
Light Sensitivity | ISO auto, ISO 100-819200 | ISO 50, ISO 102400, ISO auto (100-12800), ISO 100-32000 |
Exposure Metering | Multi-segment, centre-weighted, spot | Multi-segment, centre-weighted, spot, average |
Exposure Metering Zones | - | 1200 |
Exposure Modes | Bulb, automatic, manual, aperture-priority, shutter-priority, ISO priority, shutter & aperture priority | Bulb, automatic, manual, aperture-priority, shutter-priority |
Bracketing Modes | Depth of field bracketing, motion bracketing | Dynamic Range Bracketing, white balance bracketing |
Special Effects | Soft, Slim, Pastel, fisheye, natural, bright, Vibrant, Sketch, monochrome, Muted, Flat, landscape, portrait, Water Colour, miniature, Cross Process, Retro, Colour Extract, Toy camera, starburst, High contrast, Colour Invert, Bleach Bypass, Posterisation, Radiant, Reversal Film, Shading, Tone Expansion, Bold Monochrome, Unicolour Bold, Colour replace | Black & White, Sepia, Neutral, Vivid, sunset, landscape, portrait, clear, deep, light, autumn leaves, Retro, partial colour, Toy camera, Posterisation, High contrast monochrome, Pop Colour, Soft High-key, Night Scene, Standard, Style Box, Posterisation (B/W) |
White Balance | Custom, automatic, presets | Custom, automatic, presets |
White Balance Presets | Cloudy, tungsten light, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (warm white), Color Temperature Enhancement (CTE), fluorescent light (daylight colour), fluorescent light (daylight white) | Incandescent, cloudy, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), Underwater, 2500K - 9900K, fluorescent light (daylight white) |
Shutter Type | Mechanical electronically-controlled | Electronic, mechanical electronically-controlled |
Max Shutter Speed | 1/24000 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 | 2, 3 or 5 steps | 3, 5, 9 steps in 1/3, 1/2, 2/3, 1, 2 or 3 EV steps |
White Balance Bracketing | - | Yes |
X-sync Speed | 1/180 sec | 1/250sec |
Exposure Range | EV -3-20 (ISO 100) | EV -3-20 (ISO 100) |
DISPLAY | Pentax KP | Sony Alpha7R IV ILCE-7RM4 |
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Type | 3" LCD display | 3" LCD display |
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Touch Screen | - | Yes |
Display Format | 921,000 pixels | 1,440,000 pixels |
Display Form Factor | Folding | Folding |
Display Features | Display brightness control, display colour control, display saturation control | Display brightness control, Peaking AF display, Touch AF |
FLASH | Pentax KP | Sony Alpha7R IV ILCE-7RM4 |
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Camera Flash | Pop-up flash | - |
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Guide Number (m / ISO 100) | 6 | - |
Flash Modes | Fill-in mode, rear curtain sync, auto mode, flash OFF mode, red-eye reduction, P-TTL, slow sync | - |
Red-Eye Reduction | Yes | - |
Features | Flash +/- compensation, wireless off-camera control | - |
VIDEOGRAPHY / CAMCORDER | Pentax KP | Sony Alpha7R IV ILCE-7RM4 |
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Digital Video Format | MJPEG, H.264 | AVCHD, XAVC S |
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Image Recording Format | JPEG, RAW + JPEG, DNG (RAW), PEF (RAW) | 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 | Stereo |
Microphone Features | Sensitivity control | - |
MEMORY | Pentax KP | Sony Alpha7R IV ILCE-7RM4 |
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Memory Card Slot | SD card | Dual 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, 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 |
Image Storage | JPEG 6016 x 4000 JPEG 4608 x 3072 JPEG 3072 x 2048 JPEG 1920 x 1280 RAW 6016 x 4000 |
9504 x 6336 8448 x 6336 9504 x 5344 6240 x 4160 5552 x 4160 6240 x 3512 4752 x 3168 4224 x 3168 4752 x 2672 3120 x 2080 2768 x 2080 3120 x 1752 6336 x 6336 4160 x 4160 3168 x 3168 2080 x 2080 |
Video Capture | H.264 - 1920 x 1080 i - 60 fps H.264 - 1920 x 1080 i - 50 fps H.264 - 1920 x 1080 p - 30 fps H.264 - 1920 x 1080 p - 25 fps H.264 - 1920 x 1080 p - 24 fps H.264 - 1280 x 720 p - 60 fps H.264 - 1280 x 720 p - 50 fps H.264 - 1280 x 720 p - 30 fps H.264 - 1280 x 720 p - 25 fps H.264 - 1280 x 720 p - 24 fps |
AVCHD - 1920 x 1080 i - 60 fps - 24Mbps AVCHD - 1920 x 1080 i - 60 fps - 17Mbps AVCHD - 1920 x 1080 i - 50 fps - 24Mbps AVCHD - 1920 x 1080 i - 50 fps - 17Mbps 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 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 XAVC S - 1920 x 1080 p - 50 fps - 25Mbps XAVC S - 1920 x 1080 p - 25 fps - 16Mbps |
BATTERY AND CHARGING | Pentax KP | Sony Alpha7R IV ILCE-7RM4 |
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Battery Type | Pentax D-Li109 Lithium Ion | Sony NP-FZ100 Lithium Ion |
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Details | Pentax D-Li109 Li-ion rechargeable battery (included) | Sony NP-FZ100 Li-ion rechargeable battery - 2280 mAh (included) |
Battery Life | Photo shooting - 390 shots (50% flash usage) Photo shooting - 420 shots (flash off) Playback - 4.5 hours |
Photo shooting - 670 shots (LCD Monitor on) Photo shooting - 530 shots (EVF on) Video recording - 170 minutes (LCD Monitor on) Video recording - 160 minutes (EVF on) |
CONNECTIONS | Pentax KP | Sony Alpha7R IV ILCE-7RM4 |
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Interface | HDMI, USB 2.0, IEEE 802.11b/g/n | HDMI, USB 2.0, USB-C, NFC (Near Field Communication), IEEE 802.11a/b/g/n/ac, Bluetooth 4.1 |
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Connectivity Features | Remote control via mobile devices, Wireless Image Transfer | Remote control via mobile devices, remote live view, PC Remote functions via Wi-Fi |
Print Standard | Exif Print support | DPOF support, Exif Print support, PRINT Image Matching |
Computer Connectivity | Mac, Windows | - |
Flash Terminal | Hot shoe | Hot shoe, PC terminal |
Connector Type | USB 2.0 HDMI output Microphone (mini-phone 3.5mm) |
USB 2.0 (5 pin Micro-USB Type B) USB 3.2 Gen 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 KP | Sony Alpha7R IV ILCE-7RM4 |
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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, 0.8 frames per second, 7 frames per second | 8 frames per second, 3 frames per second, 10 frames per second, 6 frames per second |
HDR Mode | Auto HDR mode | HDR Movie mode |
Additional Features | Digital image rotation, camera orientation detection, histogram display, cropping an image, resizing an image, interval shooting mode, highlight point display, in-camera film editing, mirror lock, in-camera RAW processing, peripheral illumination correction, horizon correction, HDR image enhancement technology, Eye-Fi Card Ready, Dynamic Range Compensation, noise reduction over long exposures, Lens Distortion Correction, high ISO speed noise reduction, primary colour filter, colour moire correction, Lateral Chromatic Aberration Correction, Flucard Ready, anti-aliasing filter simulator, diffraction correction, Pixel Shift Resolution technology, multiple exposure capture | Built-in speaker, sharpness control, camera orientation detection, histogram display, saturation control, contrast control, Dynamic Range Optimizer, USB charging, built-in help guide, x.v.Colour technology, Clear Image Zoom, noise reduction over long exposures, Lens Distortion Correction, high ISO speed noise reduction, silent shooting, S-Log2 gamma setting, Pixel Shift Resolution technology, peripheral shading correction, chromatic aberration correction, anti-flicker, Hybrid Log-Gamma (HLG) recording, S-Log3 gamma setting, PC Remote functions via USB |
OTHERS | Pentax KP | Sony Alpha7R IV ILCE-7RM4 |
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Included Accessories | Battery charger, body cap, shoulder strap, eyecup, shoe cap | Eyepiece cover, battery charger, body cap, shoulder strap, shoe cap, cable protector, USB-C cable |
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Software | Drivers & Utilities | - |
Max Operating Temperature | 40 °C | 40 °C |
Min Operating Temperature | -10 °C | 0 °C |
Service & Support | - | Limited warranty - parts and labour - 1 year |