Compare Sony a7R III vs Nikon D850
Connectivity
Ports
HDMI + Headphone + Microphone + Remote Control + USB 3.2 Gen 1
HDMI + Headphone + Microphone + Remote Control + USB 3.0
Wireless Connectivity
802.11b/g/n + NFC + Bluetooth
802.11b/g + NFC + Bluetooth 4.1 LE
Construction
Form Factor
Mirrorless camera
DSLR camera
Image Size
Full frame (35.9 x 24 mm)
Full frame (35.9 x 23.9 mm)
Lens Mount
Sony E-mount
Nikon F-mount
Microphone
Stereo
Stereo
Sensor | Resolution
42 MP (7952 x 5304)
45 MP (8256 x 5504)
Sensor | Type
BSI-CMOS
BSI-CMOS
Speakers
Mono
Mono
Dimensions
Size | Depth
74 mm / 2.91 in
79 mm / 3.11 in
Size | Height
96 mm / 3.78 in
124 mm / 4.88 in
Size | Width
127 mm / 5.00 in
146 mm / 5.75 in
Weight
657 g / 23.22 oz
1005 g / 35.51 oz
Display
Display Diagonal
3 inch
3.2 inch
Display Type
Tilting TFT LCD
Tilting TFT LCD
Resolution
1,440,000 dots
2,359,000 dots
Viewfinder | Coverage
100%
100%
Viewfinder | Magnification
0.78x
0.75x
Viewfinder | Resolution
3,686,400 dots
Viewfinder | Type
Electronic
Optical (pentaprism)
Function
AE Bracketing
±5 (3, 5 frames at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV, 2 EV steps)
±5 (2, 3, 5, 7 frames at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV steps)
Autofocus
399 focus points
151 focus points
Crop Factor
1.0
1.0
Exposure Compensation
±5 (at 1/3 EV, 1/2 EV steps)
±5 (at 1/3 EV, 1/2 EV, 1 EV steps)
Exposure Mode
Auto / Aperture Priority / Shutter Priority / Manual
Auto / Aperture Priority / Shutter Priority / Manual
GPS
No
No
ISO Range
100 ~ 32000 (expands to 50 ~ 102400)
64 ~ 25600 (expands to 32 ~ 102400)
Image Stabilization
5-axis (5.5 stops)
No
Intervalometer
No
Yes
Processor
Bionz X
Expeed 5
Touch Screen
Yes
Yes
Video Codecs
MPEG-4, AVCHD, XAVC S
MPEG-4
Weather Resistance
Yes
Yes
Performance
Battery Life
650 shots
1840 shots
Max Burst Rate
10.0 fps
7.0 fps
Storage
Two SD/SDHC/SDXC slots (UHS-II support on one)
SD/SDHC/SDXC (UHS-II supported) + XQD
Production
Battery
NP-FZ100 lithium-ion battery and charger
EN-EL15a lithium-ion battery & charger
Debut
2017-10-25
2017-07-25
Model Name
ILCE-7RM3
Reviews
Neofiliac score
74%
73%
Pros
- Long battery life
- 5.5 stops of IBIS
- Good 10.0 fps burst rate
- Rather compact
- High 42 MP resolution
- Weather-sealed
- Supports both WiFi and Bluetooth
- Exceptional battery life
- 64 base ISO
- High 45 MP resolution
- Weather-sealed
- Supports both WiFi and Bluetooth
- Exceptional ergonomics
Cons
- Viewfinder with low 0.78x magnification
- Lacks intervalometer for timelapse
- Low 7.0 fps burst rate
- Very heavy
- Viewfinder with low 0.75x magnification
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