Detailed comparison and review of Sony Alpha7R III ILCE-7RM3 and Pentax K-70 + DA 18-55mm WR. 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 | Sony Alpha7R III ILCE-7RM3 | Pentax K-70 + DA 18-55mm WR |
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| Product Type | Digital camera - 4K - mirrorless system | Digital camera - 1080p - SLR with Live View mode, movie recording |
|---|---|---|
| Lens Included | Body only | DA 18-55mm WR lens |
| Height | 9.56 cm | 9.3 cm |
| Width | 12.69 cm | 12.55 cm |
| Depth | 7.37 cm | 7.4 cm |
| Weight | 572 g | 628 g |
| Weight Details | Camera body only: 572 g Camera with battery and memory card: 675 g |
Camera body only: 628 g Camera with battery and memory card: 688 g |
| Body Material | Magnesium alloy | - |
| Enclosure Colour | Black | Black |
| Protection | Dust-resistant, moisture-resistant | Weatherproof, freezeproof, dust-resistant |
| Digital Zoom | 4x | - |
| Optical Zoom | - | 3.1x |
| SENSOR | Sony Alpha7R III ILCE-7RM3 | Pentax K-70 + DA 18-55mm WR |
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| Sensor Resolution | 42.4 Megapixel | 24.0 Megapixel |
|---|---|---|
| Optical Sensor Type | Exmor R CMOS | CMOS |
| Total Pixels | 43,600,000 pixels | 24,780,000 pixels |
| Effective Sensor Resolution | 42,400,000 pixels | 24,240,000 pixels |
| Optical Sensor Size | Full Frame (35.9 x 24 mm) | APS-C (23.5 x 15.6 mm) |
| Frame Rate (Max Resolution) | 30 fps | 30 fps |
| Sensor Dust Reduction | Yes | Yes |
| Sensor Features | Dust Reduction (image sensor vibration), Anti-Dust coating | Dust Reduction (image sensor vibration), Special Protect (SP) coating |
| Image Stabiliser | Optical (5-axis Steady Shot) | Optical (image sensor shift mechanism) |
| Built-in Optical Image Stabiliser | Yes | Yes |
| Sensors | Digital level metre | Digital level metre |
| PROCESSOR | Sony Alpha7R III ILCE-7RM3 | Pentax K-70 + DA 18-55mm WR |
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| Image Processor | BIONZ X | PRIME MII |
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| LENS | Sony Alpha7R III ILCE-7RM3 | Pentax K-70 + DA 18-55mm WR |
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| Type | - | Zoom lens - 3.1x zoom - 18 - 55 mm - f/3.5-5.6 DA AL WR Pentax KAF - zoom |
|---|---|---|
| Focal Length Equivalent to 35mm Camera | - | 27.5 - 84mm |
| Focus Adjustment | - | Automatic, manual |
| Min Focus Distance | - | 25 cm |
| Max View Angle | - | 76 degree(s) |
| Zoom Adjustment | - | Manual |
| Lens Construction | - | 8 groups / 11 elements |
| Filter Size | - | 52 mm |
| Lens Mounting Type | Sony E-mount | Pentax KAF2 |
| Features | - | Aspherical lens, weatherproof |
| FOCUSING | Sony Alpha7R III ILCE-7RM3 | Pentax K-70 + DA 18-55mm WR |
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| Auto Focus | TTL contrast and phase detection | TTL contrast and phase detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 399 | 11 |
| Auto Focus Features | Focus Peaking function, Predictive Focus Control | Focus Peaking function |
| AE/AF Control | Flex Focus Point, Eye detection AF, Zone AF | Face-priority AF, Subject-tracking AF |
| Face Detection | Eye Detect AF, face-priority AF function | Yes |
| VIEWFINDER | Sony Alpha7R III ILCE-7RM3 | Pentax K-70 + DA 18-55mm WR |
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| Viewfinder Type | Electronic - OLED | Optical - fixed eye-level pentaprism |
|---|---|---|
| Viewfinder Colour Support | Colour | - |
| Viewfinder Diagonal Size | 0.5" | - |
| Viewfinder Resolution | 3,686,400 pixels | - |
| Optical Viewfinder Field Coverage | 100% | 100% |
| Optical Viewfinder Magnification | 0.78x | 0.95x |
| Optical Viewfinder Dioptric Correction Range | -4 to +3 | -2.5 to +1.5 |
| Interchangeable Focusing Screens | - | Yes |
| Features | Viewfinder brightness control, colour temperature control | - |
| EXPOSURE & WHITE BALANCE | Sony Alpha7R III ILCE-7RM3 | Pentax K-70 + DA 18-55mm WR |
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| ISO (Max) | 102400 | 102400 |
|---|---|---|
| Native ISO | - | 100-102400 |
| Light Sensitivity | ISO 50, ISO 102400, ISO auto (100-12800), ISO 100-32000 | ISO auto, ISO 100-102400 |
| Exposure Metering | Multi-segment, centre-weighted, spot | Multi-segment, centre-weighted, spot |
| Exposure Metering Zones | 1200 | 77 |
| Exposure Modes | Bulb, automatic, manual, aperture-priority, shutter-priority | Programme, bulb, automatic, manual, aperture-priority, shutter-priority, ISO priority, shutter & aperture priority |
| Bracketing Modes | Dynamic Range Bracketing, white balance bracketing | - |
| Shooting Programs | - | Landscape, portrait mode, macro, museum, surf & snow, PET, Blue Sky, food, night scene, sunset, candle, night snapshot, night scene with portrait, kids, Stage, night scene HDR, moving object, forest, backlight silhouette |
| Special Effects | 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) | 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 |
| White Balance | Custom, automatic, presets | Custom, automatic, presets |
| White Balance Presets | Incandescent, cloudy, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), Underwater, 2500K - 9900K, fluorescent light (daylight white) | Cloudy, tungsten light, daylight, shade, fluorescent light (cool white), fluorescent light (warm white), Color Temperature Enhancement (CTE), fluorescent light (daylight colour), fluorescent light (daylight white) |
| Shutter Type | - | Mechanical electronically-controlled |
| Max Shutter Speed | 1/8000 sec | 1/6000 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 | 1/250sec | 1/180 sec |
| Exposure Range | EV -3-20 (ISO 100) | EV 0-22 (ISO 100) |
| DISPLAY | Sony Alpha7R III ILCE-7RM3 | Pentax K-70 + DA 18-55mm WR |
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| Type | 3" LCD display | 3" LCD display |
|---|---|---|
| Touch Screen | Yes | - |
| Display Format | 1,440,000 pixels | 921,000 pixels |
| Display Form Factor | Folding | Rotating |
| Display Features | Display brightness control, Peaking AF display, Touch AF | Display brightness control, display colour control, display saturation control, red backlight mode |
| FLASH | Sony Alpha7R III ILCE-7RM3 | Pentax K-70 + DA 18-55mm WR |
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| Camera Flash | - | Pop-up flash |
|---|---|---|
| Guide Number (m / ISO 100) | - | 12 |
| 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 | AF illuminator | AF illuminator, flash +/- compensation, wireless off-camera control |
| VIDEOGRAPHY / CAMCORDER | Sony Alpha7R III ILCE-7RM3 | Pentax K-70 + DA 18-55mm WR |
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| Digital Video Format | AVCHD, XAVC S | H.264, MOV |
|---|---|---|
| Image Recording Format | JPEG, RAW, RAW + JPEG | JPEG, RAW + JPEG, DNG (RAW), PEF (RAW) |
| Max Video Resolution | 3840 x 2160 | 1920 x 1080 |
| Audio Signal Format | Dolby Digital AC-3 (2 channel), Linear PCM | - |
| Microphone Operation Mode | Stereo | Stereo |
| Microphone Features | - | Sensitivity control |
| MEMORY | Sony Alpha7R III ILCE-7RM3 | Pentax K-70 + DA 18-55mm WR |
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| Memory Card Slot | Memory Stick PRO Duo card, SD card | SD card |
|---|---|---|
| Supported Memory Cards | 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 | SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card |
| Memory Card Included | No | No |
| Image Storage | 7952 x 5304 7952 x 4472 5168 x 3448 5168 x 2912 3984 x 2656 3984 x 2240 2592 x 1728 2592 x 1456 |
6000 x 4000 4608 x 3072 3072 x 2048 1920 x 1440 |
| Video Capture | 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 - 60 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 |
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 |
| BATTERY AND CHARGING | Sony Alpha7R III ILCE-7RM3 | Pentax K-70 + DA 18-55mm WR |
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| Battery Type | Sony NP-FZ100 Lithium Ion | Pentax D-Li109 Lithium Ion |
|---|---|---|
| Details | Sony NP-FZ100 Li-ion rechargeable battery - 2280 mAh (included) | Pentax D-Li109 Li-ion rechargeable battery (included) |
| Battery Life | Photo shooting - 650 shots (LCD Monitor on) Photo shooting - 530 shots (EVF on) Video recording - 1.92 hours (LCD Monitor on) Video recording - 1.67 hours (EVF on) |
Photo shooting - 410 shots (50% flash usage) Photo shooting - 480 shots (flash off) Playback - 4.5 hours |
| CONNECTIONS | Sony Alpha7R III ILCE-7RM3 | Pentax K-70 + DA 18-55mm WR |
|---|
| Interface | HDMI, USB 2.0, USB-C, IEEE 802.11b/g/n, NFC (Near Field Communication), Bluetooth 4.1 | HDMI, USB 2.0, IEEE 802.11b/g/n |
|---|---|---|
| Connectivity Features | Remote live view | Remote control via mobile devices, remote live view |
| Print Standard | DPOF support, Exif Print support, PRINT Image Matching | Exif Print support |
| Computer Connectivity | - | Mac, Windows |
| Flash Terminal | Hot shoe, PC terminal | Hot shoe |
| Connector Type | USB 2.0 (5 pin Micro-USB Type B) 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) |
USB 2.0 (5 pin Micro-USB Type B) HDMI output (19 pin micro HDMI Type D) Microphone (mini-phone 3.5mm) |
| FEATURES | Sony Alpha7R III ILCE-7RM3 | Pentax K-70 + DA 18-55mm WR |
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| Self-Timer Delay | 10 sec, 2sec, 5 sec | 2sec, 12sec |
|---|---|---|
| Continuous Shooting Speed | 8 frames per second, 3 frames per second, 10 frames per second, 6 frames per second | 3 frames per second, 6 frames per second |
| HDR Mode | HDR Movie mode | Auto HDR mode |
| Additional Features | Built-in speaker, sharpness control, camera orientation detection, histogram display, saturation control, contrast control, Dynamic Range Optimizer, USB charging, built-in help guide, Dolby Digital Stereo Creator, x.v.Colour technology, HDR image enhancement technology, Clear Image Zoom, noise reduction over long exposures, Lens Distortion Correction, silent shooting, GPS via mobile, 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 | RGB primary colour filter, digital image rotation, histogram display, cropping an image, resizing an image, interval shooting mode, in-camera film editing, mirror lock, in-camera RAW processing, peripheral illumination correction, horizon correction, HDR image enhancement technology, Dynamic Range Compensation, no anti-aliasing filter, Dual Axis Electronic Level, astrophotography optimised, noise reduction over long exposures, Lens Distortion Correction, high ISO speed noise reduction, colour moire correction, Lateral Chromatic Aberration Correction, anti-aliasing filter simulator, diffraction correction, Pixel Shift Resolution technology, multiple exposure capture |
| OTHERS | Sony Alpha7R III ILCE-7RM3 | Pentax K-70 + DA 18-55mm WR |
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| Included Accessories | Eyepiece cover, battery charger, body cap, shoulder strap, shoe cap, cable protector, USB-C cable | Battery charger, dust cap, body cap, lens cap, shoulder strap, eyecup, shoe cap |
|---|---|---|
| Software | - | Drivers & Utilities |
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | 0 °C | -10 °C |
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