• APS-C 364.3mm2
  • 19.6 megapixels
  • ISO 100 - 6400
  • 35mm 858.0mm2
  • 33.0 megapixels
  • ISO 100 - 51,200
  • Detailed specifications
  • Sigma sd Quattro
  • Sony Alpha ILCE-A7 IV
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Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:   Sony A7 III
A7 III vs A7 IV
Successor:    
General
Model Number: sd Quattro A7 IV
Alternate Model Number(s):   ILCE-7M4
Camera Format: Compact System Camera Compact System Camera
Currently Manufactured: Yes Yes
Retail Price: $799.99 $2500.00
Street Price: $699.00 $2,231.33
Date Available: 2016-07-15 2021-12-31
Tripod Mount: Yes Yes
Weight: 22.0 oz (625 g) 23.2 oz (658 g)
includes batteries
Size: 5.8 x 3.7 x 3.6 in.
(147 x 95 x 91 mm)
5.2 x 3.8 x 3.1 in.
(131 x 96 x 80 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Foveon X3 Quattro Sony
Effective Megapixels: 19.6 33.0
Sensor Format: APS-C 35mm
Sensor size: 364.25mm2 (23.50mm x 15.50mm) 858.01mm2 (35.90mm x 23.90mm)
Approximate Pixel Pitch: 4.33 microns 5.12 microns
Focal Length Multiplier: 1.5x 1.0x
Aspect Ratio: 3:2 3:2
Color Filter Type: Full Color RGBG
Anti Aliasing Filter: Not needed None
Self-Cleaning: No Yes
Sensor shift image stabilization: No Yes
On-Sensor Phase Detect: Yes No
DxO Sensor Score:    
DxO Color Depth Score (bits):    
DxO Dynamic Range Score (evs):    
DxO Maximum Effective ISO Score (iso):    
Image Capture
Image Resolution: 5424 x 3616 (19.6 MP, 3:2),
4816 x 3616 (17.4 MP, 4:3),
5424 x 3048 (16.5 MP, 16:9),
3616 x 3616 (13.1 MP, 1:1),
4480 x 3616 (16.2 MP, Other),
5424 x 2328 (12.6 MP, Other),
7680 x 5120 (39.3 MP, 3:2),
6816 x 5120 (34.9 MP, 4:3),
7680 x 4320 (33.2 MP, 16:9),
5120 x 5120 (26.2 MP, 1:1),
7680 x 3296 (25.3 MP, Other),
6352 x 5120 (32.5 MP, Other)
7008 x 4672 (32.7 MP, 3:2),
4608 x 3072 (14.2 MP, 3:2),
3504 x 2336 (8.2 MP, 3:2),
7008 x 3944 (27.6 MP, 16:9),
4608 x 2592 (11.9 MP, 16:9),
3504 x 1968 (6.9 MP, 16:9),
6224 x 4672 (29.1 MP, 4:3),
4096 x 3072 (12.6 MP, 4:3),
3120 x 2336 (7.3 MP, Other),
4672 x 4672 (21.8 MP, 1:1),
3072 x 3072 (9.4 MP, 1:1),
2336 x 2336 (5.5 MP, 1:1)
Image File Format: JPEG (EXIF 2.3), Lossless compressed 14-bit X3F RAW, (Uncompressed 12-bit DNG via upcoming firmware update), RAW(X3F)+JPEG JPEG (8-bit), HEIF (10-bit), RAW (14-bit ARW 2.3), RAW+JPEG, RAW+HEIF
Continuous-mode frames/second: n/a 10.0
Video Capture
Can take movies: No Yes
Movie Resolution: 3840x2160 (60p/​50p/​30p/​25p/​24p)
1920x1080 (120p/​60p/​50p/​30p/​25p/​24p)
Movie File Format:   XAVC S (Long GOP, H.264 MP4); XAVC HS (Long GOP, H.265 HEVC); XAVC S-I (All-Intra, H.264 MP4)
Composite Video Out: No No
NTSC/PAL Switchable Video: n/a n/a
Video Usable as Viewfinder: n/a n/a
HD Video Out: Yes Yes
HD Video Connection: HDMI HDMI
Lens & Optics
Lens Mount: Sigma SA bayonet Sony E
Lens: n/a Sony FE 28-70mm f/3.5-5.6 OSS SEL2870
Focal Length (35mm equivalent):   28 - 70mm
Focal Length (actual):   28 - 70mm
Zoom Ratio:   2.50x
Aperture Range:   f/3.5-22 (W) / f/5.6-36 (T)
Integrated ND Filter: No
Normal Focus Range:   40 cm to Infinity
15.7 in to Infinity
Macro Focus Range:    
Filter Thread: n/a 55.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: Yes
Digital Zoom Values:   Up to 4x; 2x Clear Image Digital Zoom
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Hybrid Phase/Contrast Detect AF: 9 points select mode, Free move mode (It is possible to change the size of Focus Frame to Spot, Regular and Large), Face Detection AF Mode Fast Hybrid 4D AF: 759 points (PDAF), 425 points (contrast-detection AF); Wide (759 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 / LCD EVF / LCD
Viewfinder Type: EVF: 2,360K-dot LCD, 100% coverage, 1.10x magnification, 21mm eyepoint, -4 to +2 diopter EVF: 1.3 cm (0.5 type) 3.68M-dot UXGA color OLED, 100% coverage, 0.78x magnification, -4.0 to +3.0 diopter, 23mm eyepoint from the eyepiece lens
Focus Peaking: Yes Yes
EVF Resolution: 2,360,000 dots 3,686,400 dots (1,228,800 pixels)
Viewfinder Magnification (35mm equivalent): 0.73x  
Viewfinder Magnification (nominal/claimed): 1.10x  
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.0
Rear Display Resolution: 1,620,000 dots 3,680,000 dots
Touchscreen: No Yes
Articulating Screen: No Yes
Tilt Swivel Screen: No Yes
Selfie Screen: No Yes
Max Playback Zoom:   13.3x
Top Deck Display: No No
Exposure
Maximum ISO (native): 6400 51200
Minimum ISO (native): 100 100
ISO Settings: Auto, 100-6400 in 1/3 EV steps; Auto has programmable High/Low limits Auto, 100 - 51200, expandable to 50 - 204800
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Auto (Lighting Source Priority), Daylight, Shade, Overcast, Incandescent, Fluorescent, Color Temperature, Flash, Custom 1/2/3 Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent (4 settings), Flash, Custom, Color Temp./ Filter (2500-9900K with 57-step Magenta/Green and 29-step Amber/Blue compensation), Underwater
Shutter Speed Range: 1/4000 - 30 sec 1/8000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 5.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: Evaluative, center-weighted average, spot 1200-zone Evaluative Multi-segment, Center-weighted, 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: Color modes: Standard, Vivid, Neutral, Portrait, Landscape, Cinema, Sunset Red, Forest Green, FOV Classic Blue, FOV Classic Yellow, Monochrome 3 Custom Settings; Creative Look; Slow & Quick Motion; HDR: Auto Exposure Difference, Exposure difference Level (1-6 EV at 1.0 EV step)
Self Timer: 2 or 10 seconds 2, 5, 10; 3/5 shots after 2/5/10 seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: No No
Flash Modes: n/a Auto, Fill Flash, Hi-Speed Sync, Off, Rear Sync, Red-Eye Reduction, Slow Sync
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: n/a n/a
Max Flash Sync: 1/180 1/250
Flash Exposure Compensation: +/- 3.0 EV in 0.3EV steps +/- 3.0 EV in 0.3EV steps
External Flash Connection: Hot Shoe, PC Socket Enhanced Multi Interface Hot Shoe, Sync Terminal
Built-In Wireless Flash Control: No No
Image Storage
Usable Memory Types: SD / SDHC / SDXC MS PRO Duo / SD / SDHC / SDXC / CFexpress
UHS Support:   UHS-I
Other Memory:   2x:CFexpress Type A, SD UHS-II
Dual Card Slots: No Yes
RAW Capture Support: Yes Yes
Uncompressed Format: Lossless compressed 14-bit X3F RAW, (Uncompressed 12-bit DNG via upcoming firmware update), RAW(X3F)+JPEG RAW (14-bit ARW 2.3), RAW+JPEG, RAW+HEIF
Movie File Format:   XAVC S (Long GOP, H.264 MP4); XAVC HS (Long GOP, H.265 HEVC); XAVC S-I (All-Intra, H.264 MP4)
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No Yes
NFC: No Yes
Bluetooth: No Yes
Built-In GPS: No No
Microphone Jack: No Yes
Headphone Jack: No Yes
External Connections: USB 3.0 Super Speed USB 2.0 High Speed,USB 3.0 Super Speed,Bluetooth,WiFi
PictBridge Compliant: No No
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional wired (Cable Release Switch CR-3) Yes, via USB or Wi-Fi
Connections (extended): Mini (Type-C) HDMI USB-C (USB 3.2 Gen2, 10Gbps), Multi-Terminal Micro USB (with remote support), Type-A HDMI, 3.5mm Microphone and Headphone jacks
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):    
Cycle time for RAW shooting in single shot mode (seconds per frame):    
Buffer size for RAW shooting in single shot mode (frames):    
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):    
Camera penalizes early shutter press?
JPEG shooting speed in burst mode (fps, max resolution):   10.0
Buffer size for JPEG shooting in burst mode (frames, max resolution):   828
RAW shooting speed in burst mode (fps): 3.6  
Buffer size for RAW shooting in burst mode (frames): 14  
RAW+JPEG shooting speed in burst mode (fps):    
Buffer Size for RAW+JPEG shooting in burst mode (frames):    
Shutter lag (full AF, wide/mid):    
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus):    
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused):    
Shutter Lag (notes):    
Startup Time:    
Play -> Record Time:    
Flash cycle time, full power:    
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):    
Battery Life, Still (CIPA Rating OVF/EVF):    
Battery Life, Video:    
Battery Form Factor: Proprietary BP-61 Proprietary
Usable Battery Types: Lithium-ion rechargeable NP-FZ100 Lithium-ion rechargeable
Batteries Included: 1 x Proprietary BP-61 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 Yes
Internal Charging Supported: No Yes
Software
Included Software: SIGMA Photo Pro Download Capture One Express (for Sony) free download
OS Compatibility: Windows, Mac OS Windows, Mac OS X
Miscellaneous
Notes & Features: