| Links | ||
|---|---|---|
| Prices: | Compare Prices | Compare Prices |
| Manufacturer URL: | Manufacturer website | Manufacturer website |
| Predecessor: |
Sony A7R III
A7R III vs A7R IV |
|
| Successor: | Sony A7R V | |
| General | ||
| Model Number: | NX20 | A7R IV |
| Alternate Model Number(s): | ILCE-7RM4 | |
| Camera Format: | Compact System Camera | Compact System Camera |
| Currently Manufactured: | No | Yes |
| Retail Price: | $1099.99 | $3500.00 |
| Street Price: | $399.99 | $3,331.19 |
| Date Available: | 2012-05-05 | 2019-09-01 |
| Tripod Mount: | Yes | Yes |
| Weight: |
22.5 oz
(637 g)
includes batteries, kit lens |
23.5 oz
(665 g)
includes batteries |
| Size: |
4.8 x
3.5 x
1.6 in. (122 x 90 x 40 mm) |
5.1 x
3.8 x
3.1 in. (129 x 96 x 78 mm) |
| Waterproof: | No | No |
| Waterproof Depth: | n/a | n/a |
| Image Sensor | ||
| Sensor Type: | CMOS | CMOS |
| Sensor Manufacturer: | Samsung | Sony |
| Effective Megapixels: | 20.3 | 61.0 |
| Sensor Format: | APS-C | 35mm |
| Sensor size: | 369.72mm2 (23.7mm x 15.6mm) | 849.66mm2 (35.70mm x 23.80mm) |
| Approximate Pixel Pitch: | 4.33 microns | 3.76 microns |
| Focal Length Multiplier: | 1.5x | 1.0x |
| Aspect Ratio: | 3:2 | 3:2 |
| Color Filter Type: | RGBG | RGBG |
| Anti Aliasing Filter: | Fixed | None |
| Self-Cleaning: | Yes | Yes |
| Sensor shift image stabilization: | No | Yes |
| On-Sensor Phase Detect: | No | Yes |
| DxO Sensor Score: | 75 | 99 |
| DxO Color Depth Score (bits): | 23.4 | 26.0 |
| DxO Dynamic Range Score (evs): | 12.9 | 14.8 |
| DxO Maximum Effective ISO Score (iso): | 785 | 3,344 |
| Image Capture | ||
| Image Resolution: |
5472 x 3648
(20.0 MP,
3:2), 5472 x 3080 (16.9 MP, 16:9), 3648 x 3648 (13.3 MP, 1:1), 3888 x 2592 (10.1 MP, 3:2), 3712 x 2088 (7.8 MP, 16:9), 2640 x 2640 (7.0 MP, 1:1), 2976 x 1984 (5.9 MP, 3:2), 2736 x 1824 (5.0 MP, 3:2), 2944 x 1656 (4.9 MP, 16:9), 2000 x 2000 (4.0 MP, 1:1), 1920 x 1080 (2.1 MP, 16:9), 1728 x 1152 (2.0 MP, 3:2), 1024 x 1024 (1.0 MP, 1:1) |
9504 x 6336
(60.2 MP,
3:2), 6240 x 4160 (26.0 MP, 3:2), 4752 x 3168 (15.1 MP, 3:2), 8448 x 6336 (53.5 MP, 4:3), 5552 x 4160 (23.1 MP, 4:3), 4224 x 3168 (13.4 MP, 4:3), 9504 x 5344 (50.8 MP, 16:9), 6240 x 3512 (21.9 MP, 16:9), 4752 x 2672 (12.7 MP, 16:9), 6336 x 6336 (40.1 MP, 1:1), 4160 x 4160 (17.3 MP, 1:1), 3168 x 3168 (10.0 MP, 1:1) |
| Image File Format: | JPEG (EXIF 2.21), .SRW 12-bit RAW | JPEG (Exif 2.31), RAW (14-bit ARW 2.3), RAW+JPEG |
| Continuous-mode frames/second: | 7.5 | 10.0 |
| Video Capture | ||
| Can take movies: | Yes | Yes |
| Movie Resolution: |
1920x1080 (30p)
1920x810 (24p) 1280x720 (30p) 640x480 (30p) 320x240 (30p) |
3840x2160 (30p/25p/24p)
1920x1080 (120p/100p/60p/60i/50p/50i/30p/25p/24p) |
| Movie File Format: | MP4 (H.264) with AAC audio | XAVC S / AVCHD 2.0 / MP4; Audio: LPCM / Dolby Digital (AC-3) / MPEG-4 AAC-LC, stereo |
| Composite Video Out: | Yes | No |
| NTSC/PAL Switchable Video: | Yes | n/a |
| Video Usable as Viewfinder: | n/a | |
| HD Video Out: | Yes | Yes |
| HD Video Connection: | HDMI | HDMI |
| Lens & Optics | ||
| Lens Mount: | Samsung NX | Sony E |
| Lens: | Samsung 18-55mm f/3.5-5.6 OIS NX | n/a |
| Focal Length (35mm equivalent): | 27 - 84mm | |
| Focal Length (actual): | 18 - 55mm | |
| Zoom Ratio: | 3.06x | |
| Aperture Range: | f/3.5 (wide) / f/5.6 (tele) - f/22 | |
| Integrated ND Filter: | No | |
| Normal Focus Range: |
28 cm to Infinity 11.0 in to Infinity |
|
| Macro Focus Range: | ||
| Filter Thread: | 58.0mm | n/a |
| Thread Type: | n/a | n/a |
| Optical Image Stabilization: | Yes | No |
| Digital Zoom: | Yes | Yes |
| Digital Zoom Values: | Up to 2x i-Zoom | Up to 4x; up to 2x Clear Image Digital Zoom |
| Auto Focus | ||
| Auto Focus: | Yes | Yes |
| Auto Focus Type: | 15-point Contrast Detection; has single-point and 35-point closeup modes; Face Detection : Max. 10 faces | Fast Hybrid 4D AF: 567 points (PDAF), APS-C mode with full-frame lens: 325 points (PDAF), with APS-C lens: 247 points (PDAF) / 425 points (contrast-detection AF); Wide (567 points (PDAF), 425 points (CDAF))/Zone/Center/Flexible Spot (S/M/L)/Expanded Flexible Spot/Tracking (Wide/Zone/Center/Flexible Spot (S/M/L)/Expanded Flexible Spot); Touch AF |
| Auto Focus Assist Light? | Yes | Yes |
| Manual Focus: | Yes | Yes |
| Viewfinder | ||
| Viewfinder: | EVF / OLED | EVF / LCD |
| Viewfinder Type: | EVF type with Eye Contact Sensor; SVGA (800 x 600) TFT-LCD; Coverage: Approx. 100%; Magnification: Approx. 1.04X (APS-C, 50mm, -1m-1), Approx. 0.68X (Equivalent to a 50mm lens on a 35mm camera); Eyepoint: Approx. 18.0mm; Diopter Adjustment: -4.0 to +4.0m- | EVF: 1.3 cm (0.5 type) 5.76M-dot UXGA color OLED, 100% coverage, 0.78x magnification, -4.0 to +3.0m-1 diopter, Approx. 23mm eyepoint from the eyepiece lens, 18.5mm from the eyepiece frame at -1m-1, eye sensor |
| Focus Peaking: | No | Yes |
| EVF Resolution: | 1,440,000 dots (480,000 pixels) | 5,760,000 dots (1,920,000 pixels) |
| Viewfinder Magnification (35mm equivalent): | 0.69x | 0.78x |
| Viewfinder Magnification (nominal/claimed): | 1.04x | 0.78x |
| Display | ||
| Eye-level Viewfinder: | Yes | Yes |
| Rear Display: | Yes | Yes |
| Rear Display Size (inches): | 3.0 | 3.0 |
| Rear Display Resolution: | 614,400 dots | 1,440,000 dots (360,000 px) |
| Touchscreen: | No | Yes |
| Articulating Screen: | Yes | Yes |
| Tilt Swivel Screen: | No | |
| Selfie Screen: | No | |
| Max Playback Zoom: | ||
| Top Deck Display: | No | No |
| Exposure | ||
| Maximum ISO (native): | 12800 | 32000 |
| Minimum ISO (native): | 100 | 100 |
| ISO Settings: | Auto (100-3200), 100, 200, 400, 800, 1600, 3200, 6400, 12800 (1 or 1/3 EV steps) | AUTO (ISO 100-12800; selectable lower limit and upper limit), ISO 100 - 32000, expandable to ISO 50 - 102400 |
| Auto ISO Mode: | Yes | Yes |
| White Balance Settings: | Auto, Daylight, Cloudy, White Fluorescent, Neutral Fluorescent, Daylight Fluorescent, Tungsten, Flash, Custom, Kelvin Color Temp., 7-step A/B + G/M adjust | Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent (4 settings), Flash, Custom, Color Temp./ Filter (2500-9900K with 15-step Magenta/Green compensation), Underwater |
| Shutter Speed Range: | 1/8000 - 30 sec | 1/8000 - 30 sec |
| Bulb Mode: | Yes | Yes |
| Exposure Compensation: | +/- 3.0EV in 0.3EV steps | +/- 5.0EV in 0.3EV steps |
| Metering Modes: | 221-segment Multi, Center-weighted, Spot | 1200-zone Evaluative Multi-segment, Center-weighted, Spot, Spot Standard/Large, Entire Screen Avg., Highlight |
| Program Auto Exposure: | Yes | Yes |
| Aperture Priority: | Yes | Yes |
| Shutter Priority: | Yes | Yes |
| Full Manual Exposure: | Yes | Yes |
| Creative Exposure Modes: | Scene: Panorama (Live, 3D), Beauty shot, Night, Landscape, Portrait, Children, Sports, Close-Up, Text, Sunset, Dawn, Backlight, Fireworks, Beach & Snow, Sound Picture, 3D Photo; Smart Filter: Vignetting, Miniature, Fish-Eye, Sketch, De-fog, Halftone Dots, Soft Focus, Old Film1, Old Film2, Negative, Selective Color (4 Color Modes); Magic Frame: Old Album, Old Film, Wave, Full Moon, Old Record, Magazine, Sunny Day, Classic TV, Wall Art, Holiday, Billboard 1, Billboard 2, Newspaper | 3 Custom Settings; Slow & Quick Motion; HDR: Auto Exposure Difference, Exposure difference Level (1-6 EV at 1.0 EV step) |
| Self Timer: | 2-30 sec in 1 sec steps seconds | 2, 5, 10; 3/5 shots after 2/5/10 seconds |
| Time Lapse (intervalometer): | Yes | |
| High Resolution Composite: | No | 240.8 megapixels |
| Flash | ||
| Built-in Flash: | Yes | No |
| Flash Modes: | Smart Flash, Auto, Auto+Red-eye reduction, Fill-in, Fill-in+Red-eye reduction, 1st Curtain, 2nd Curtain, Off | Flash off, Auto flash, Fill-flash, Slow Sync., Rear Sync., Hi-speed Sync, Wireless; Red-eye reduction: On/Off |
| Flash Guide Number (ISO 100): | 11.0 m / 36.1 ft. | n/a |
| Flash Range Description: | Depends on lens aperture | n/a |
| Max Flash Sync: | 1/180 | 1/250 |
| Flash Exposure Compensation: | +/- 2.0 EV in 0.5EV steps | +/- 3.0 EV in 0.3EV steps |
| External Flash Connection: | Hot shoe | Enhanced Multi Interface Hot Shoe, Sync Terminal |
| Built-In Wireless Flash Control: | No | No |
| Image Storage | ||
| Usable Memory Types: | SD / SDHC / SDXC | SD / SDHC / SDXC |
| UHS Support: | UHS-II | |
| Other Memory: | Dual SD UHS-II slots | |
| Dual Card Slots: | No | Yes |
| RAW Capture Support: | Yes | Yes |
| Uncompressed Format: | .SRW 12-bit RAW | RAW (14-bit ARW 2.3), RAW+JPEG |
| Movie File Format: | MP4 (H.264) with AAC audio | XAVC S / AVCHD 2.0 / MP4; Audio: LPCM / Dolby Digital (AC-3) / MPEG-4 AAC-LC, stereo |
| Included Memory: | No memory included | No memory included |
| Included Memory Type: | ||
| Connectivity | ||
| Built-In Wi-Fi: | Yes | Yes |
| NFC: | Yes | |
| Bluetooth: | No | Yes |
| Built-In GPS: | No | No |
| Microphone Jack: | No | Yes |
| Headphone Jack: | No | Yes |
| External Connections: | USB 2.0 High Speed,WiFi | USB 2.0 High Speed,USB 3.0 Super Speed,Bluetooth,WiFi |
| PictBridge Compliant: | Yes | No |
| DPOF Compliant: | Yes | Yes |
| Remote Control: | Yes | Yes |
| Remote Control Type: | Optional wired (SR2NX02) | Optional via RM-VPR1, USB, Wi-Fi or Bluetooth |
| Connections (extended): | Micro (Type D) HDMI, Combined AV/USB/Remote Micro USB Port | USB-C (USB 3.1 Gen 1), Multi-Terminal Micro USB (with remote support), Type-D Micro HDMI, 3.5mm Microphone and Headphone jacks |
| Performance Timing | ||
| Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): | 1.40 | <0.3 |
| Cycle time for RAW shooting in single shot mode (seconds per frame): | 1.32 | |
| Buffer size for RAW shooting in single shot mode (frames): | 4 | |
| Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot): | <0.3 | |
| Camera penalizes early shutter press? | No | No |
| JPEG shooting speed in burst mode (fps, max resolution): | 7.5 | 10.0 |
| Buffer size for JPEG shooting in burst mode (frames, max resolution): | 11 | 70 |
| RAW shooting speed in burst mode (fps): | 7.2 | |
| Buffer size for RAW shooting in burst mode (frames): | 32 | |
| RAW+JPEG shooting speed in burst mode (fps): | 7.2 | |
| Buffer Size for RAW+JPEG shooting in burst mode (frames): | 32 | |
| Shutter lag (full AF, wide/mid): | 0.35 seconds | 0.21 seconds |
| Shutter lag (full AF, tele): | ||
| Shutter lag (full AF, live view - DSLR): | ||
| Shutter lag (prefocused, live view - DSLR): | ||
| Shutter Lag (manual focus): | 0.060 seconds | 0.124 seconds |
| Shutter lag (full AF, with flash): | 0.62 seconds | |
| Shutter Lag (prefocused): | 0.044 seconds | 0.022 seconds |
| Shutter Lag (notes): | Full AF Shutter Lag, Wide Area mode = 0.650s | |
| Startup Time: | 3.0 seconds | 1.3 seconds |
| Play -> Record Time: | 0.9 seconds | 1.5 seconds |
| Flash cycle time, full power: | 3.6 seconds | |
| Power | ||
| Battery Life, Stills (CIPA Rating Monitor/Live View): | 360 shots | 670 shots |
| Battery Life, Still (CIPA Rating OVF/EVF): | 530 shots | |
| Battery Life, Video: | 105 minutes | |
| Battery Form Factor: | Proprietary BP1310 | Proprietary |
| Usable Battery Types: | Lithium-ion rechargeable | NP-FZ100 Lithium-ion rechargeable |
| Batteries Included: | 1 x Proprietary BP1310 lithium-ion rechargeable | 1 x Proprietary NP-FZ100 Lithium-ion rechargeable |
| Battery Charger Included (dedicated charger or AC/USB adapter): | Yes | Yes |
| Dedicated Battery Charger Included: | Yes | |
| Internal Charging Supported: | Yes | |
| Software | ||
| Included Software: | intelli-studio 3.0, Samsung RAW Converter 4, PC Auto Backup, Adobe Reader | Capture One Express (for Sony) free download |
| OS Compatibility: | Windows, Mac OS (except intelli-studio) | |
| Miscellaneous | ||
| Notes & Features: | Built-in Wi-Fi (IEEE 802.11b/g/n support, Mobile Link, Remote Viewfinder, Social Sharing, Email, Cloud , Auto Backup, TV Link, Wi-Fi Direct), supports geotagging w/ optional WGS84 GPS Module. | |
