• 4/3 226.2mm2
  • 20.4 megapixels
  • ISO 200 - 25,600
  • 35mm 858.0mm2
  • 33.0 megapixels
  • ISO 100 - 51,200
  • Detailed specifications
  • Olympus OM-D E-M1 II
  • Sony Alpha ILCE-A7 IV
Links
Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor: Olympus E-M1
E-M1 vs E-M1 II
Sony A7 III
A7 III vs A7 IV
Successor: Olympus E-M1 Mark III
E-M1 II vs E-M1 Mark III
 
General
Model Number: E-M1 II A7 IV
Alternate Model Number(s):   ILCE-7M4
Camera Format: Compact System Camera Compact System Camera
Currently Manufactured: Yes Yes
Retail Price: $1999.99 $2500.00
Street Price: $899.00 $2,298.00
Date Available: 2016-12-31 2021-12-31
Tripod Mount: Yes Yes
Weight: 20.2 oz (574 g)
includes batteries
23.2 oz (658 g)
includes batteries
Size: 5.3 x 3.6 x 2.7 in.
(134 x 91 x 69 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: Live MOS CMOS
Sensor Manufacturer:   Sony
Effective Megapixels: 20.4 33.0
Sensor Format: 4/3 35mm
Sensor size: 226.2mm2 (17.40mm x 13.00mm) 858.01mm2 (35.90mm x 23.90mm)
Approximate Pixel Pitch: 3.36 microns 5.12 microns
Focal Length Multiplier: 2.0x 1.0x
Aspect Ratio: 4:3 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: None None
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes Yes
On-Sensor Phase Detect: Yes No
DxO Sensor Score: 80  
DxO Color Depth Score (bits): 23.7  
DxO Dynamic Range Score (evs): 12.8  
DxO Maximum Effective ISO Score (iso): 1,312  
Image Capture
Image Resolution: 5184 x 3888 (20.2 MP, 4:3),
3712 x 2784 (10.3 MP, 4:3),
2624 x 1968 (5.2 MP, 4:3),
1824 x 1368 (2.5 MP, 4:3),
1024 x 768 (0.8 MP, 4:3)
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, 12-bit lossless compressed RAW (.ORF), RAW + JPEG JPEG (8-bit), HEIF (10-bit), RAW (14-bit ARW 2.3), RAW+JPEG, RAW+HEIF
Continuous-mode frames/second: 60.6 10.0
Video Capture
Can take movies: Yes Yes
Movie Resolution: 4096x2160 (24p)
3840x2160 (30p/​25p/​24p)
1920x1080 (60p/​50p/​30p/​25p/​24p)
1280x720 (60p/​50p/​30p/​25p/​24p)
4096x2160 (15p/​12p/​8p/​6p/​3p)
3840x2160 (25p/​24p/​15p/​12p/​8p/​6p/​3p)
1920x1080 (60p/​50p/​25p/​24p/​15p/​12p/​8p/​6p/​3p)
1280x720 (60p/​50p/​25p/​24p/​15p/​12p/​8p/​6p/​3p)
3840x2160 (60p/​50p/​30p/​25p/​24p)
1920x1080 (120p/​60p/​50p/​30p/​25p/​24p)
Movie File Format: MOV (MPEG-4 AVC/H.264 with stereo sound), AVI (Motion JPEG) 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: Micro Four Thirds 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 Yes
Digital Zoom Values: 2x (3x in movie mode) Up to 4x; 2x Clear Image Digital Zoom
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Advanced Dual FAST AF: Hybrid Phase-detect/Contrast-detect AF, 121 AF points, all cross-type; All target, group target (9-area or 5- area), single target 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; High-speed (120fps) low latency (6ms) 2.36M-dot LCD, 1.30x - 1.48x magnification, 100% coverage, 21mm eyepoint, -4 to +2 diopter, eye sensor 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): 0.74x  
Viewfinder Magnification (nominal/claimed): 1.48x  
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.0
Rear Display Resolution: 1,037,000 dots (345,667 px) 3,680,000 dots
Touchscreen: Yes Yes
Articulating Screen: Yes Yes
Tilt Swivel Screen: Yes Yes
Selfie Screen: Yes Yes
Max Playback Zoom: 14.0x 13.3x
Top Deck Display: No No
Exposure
Maximum ISO (native): 25600 51200
Minimum ISO (native): 200 100
ISO Settings: AUTO ISO: LOW (approx. 64) - 6400 with customizable upper limit (200 - 6400); Manual ISO: Low (approx. 64) - 25600, 1/3 or 1 EV steps selectable Auto, 100 - 51200, expandable to 50 - 204800
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Lamp, Fluorescent, Daylight, Flash, Cloudy, Shade, Custom WB (Kelvin), One-touch WB (4); WB Tuning: +/-7 steps along A-B / G-M axis 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: 1/32000 - 60 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: Digital ESP metering (324-area multi pattern metering), Center weighted average metering, Spot metering, Spot metering with highlight control, Spot metering with shadow control 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: 3 Custom settings; Art Filter (Pop Art, Soft Focus, Pale & Light Color, Light Tone, Grainy Film, Pin Hole, Diorama, Cross Process, Gentle Sepia, Dramatic Tone, Key Line, Water Color, Vintage, Partial Color, Soft Focus Effect, Pin-Hole Effect, White Edge Effect, Frame Effect, Star Light Effect, Blur Effect, B&W Effect, Picture Tone, Shade Effect), Underwater Wide/Underwater Macro, HDR1/2, Live Bulb, Live Time, Live Composite, Focus Stacking 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, 10, Custom seconds 2, 5, 10; 3/5 shots after 2/5/10 seconds
Time Lapse (intervalometer): Yes  
High Resolution Composite: 80.0 megapixels No
Flash
Built-in Flash: No No
Flash Modes: Flash Auto, Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual 1/1 (FULL) - 1/64 Auto, Fill Flash, Hi-Speed Sync, Off, Rear Sync, Red-Eye Reduction, Slow Sync
Flash Guide Number (ISO 100): 9.0 m / 29.5 ft. n/a
Flash Range Description: Bundled FL-LM3 flash has GN of 9m/ISO 100 n/a
Max Flash Sync: 1/250 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 Sync Terminal 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-II UHS-I
Other Memory: Slot 1: UHS-II, Slot 2: UHS-I 2x:CFexpress Type A, SD UHS-II
Dual Card Slots: Yes Yes
RAW Capture Support: Yes Yes
Uncompressed Format: 12-bit lossless compressed RAW (.ORF), RAW + JPEG RAW (14-bit ARW 2.3), RAW+JPEG, RAW+HEIF
Movie File Format: MOV (MPEG-4 AVC/H.264 with stereo sound), AVI (Motion JPEG) 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: Yes Yes
NFC: No Yes
Bluetooth: No Yes
Built-In GPS: No No
Microphone Jack: Yes Yes
Headphone Jack: Yes Yes
External Connections: USB 3.0 Super 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 or via Wi-Fi Yes, via USB or Wi-Fi
Connections (extended): Micro HDMI (Type-D), USB 3.0 Type C, 3.5mm external mic jack, 3.5mm external headphone jack, 2.5mm wired remote jack 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): <0.3  
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): <0.3  
Camera penalizes early shutter press? No
JPEG shooting speed in burst mode (fps, max resolution): 60.6 10.0
Buffer size for JPEG shooting in burst mode (frames, max resolution): 51 828
RAW shooting speed in burst mode (fps): 60.6  
Buffer size for RAW shooting in burst mode (frames): 51  
RAW+JPEG shooting speed in burst mode (fps): 60.6  
Buffer Size for RAW+JPEG shooting in burst mode (frames): 50  
Shutter lag (full AF, wide/mid): 0.11 seconds  
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus): 0.052 seconds  
Shutter lag (full AF, with flash): 0.37 seconds  
Shutter Lag (prefocused): 0.032 seconds  
Shutter Lag (notes):    
Startup Time: 0.8 seconds  
Play -> Record Time: 0.6 seconds  
Flash cycle time, full power: 6.9 seconds  
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 440 shots  
Battery Life, Still (CIPA Rating OVF/EVF):    
Battery Life, Video: 90 minutes  
Battery Form Factor: Proprietary BLH-1 Proprietary
Usable Battery Types: 1720mAh Lithium-ion rechargeable NP-FZ100 Lithium-ion rechargeable
Batteries Included: 1 x Proprietary BLH-1 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: Olympus Viewer 3 Capture One Express (for Sony) free download
OS Compatibility:   Windows, Mac OS X
Miscellaneous
Notes & Features: