Compare Sony a7R III vs Sigma sd Quattro H vs Sigma fp
Connectivity
Ports
HDMI + Headphone + Microphone + Remote Control + USB 3.2 Gen 1
HDMI + Remote Control + USB 3.0
HDMI + Headphone + Microphone + Remote Control + USB 3.2 Gen 1
Wireless Connectivity
802.11b/g/n + NFC + Bluetooth
Construction
Form Factor
Mirrorless camera
Mirrorless camera
Mirrorless camera
Image Size
Full frame (35.9 x 24 mm)
APS-H (26.6 x 17.9 mm)
Full frame (35.9 x 23.9 mm)
Lens Mount
Sony E-mount
Sigma SA-mount
Leica L-mount
Microphone
Stereo
None
Stereo
Sensor | Resolution
42 MP (7952 x 5304)
45 MP (6200 x 4152)
25 MP (6000 x 4000)
Sensor | Type
BSI-CMOS
CMOS (Foveon X3)
BSI-CMOS
Speakers
Mono
None
Mono
Dimensions
Size | Depth
74 mm / 2.91 in
91 mm / 3.58 in
45 mm / 1.77 in
Size | Height
96 mm / 3.78 in
95 mm / 3.74 in
70 mm / 2.76 in
Size | Width
127 mm / 5.00 in
147 mm / 5.79 in
113 mm / 4.45 in
Weight
657 g / 23.22 oz
422 g / 14.91 oz
Display
Display Diagonal
3 inch
3 inch
3.2 inch
Display Type
Tilting TFT LCD
Fixed TFT LCD
Fixed TFT LCD
Resolution
1,440,000 dots
1,620,000 dots
2,100,000 dots
Viewfinder | Coverage
100%
100%
Viewfinder | Magnification
0.78x
1.09x
Viewfinder | Resolution
3,686,400 dots
2,360,000 dots
Viewfinder | Type
Electronic
Electronic
None
Function
AE Bracketing
±5 (3, 5 frames at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV, 2 EV steps)
±3 (3, 5 frames at 1/3 EV steps)
±3 (3, 5 frames at 1/3 EV steps)
Autofocus
399 focus points
9 focus points
49 focus points
Crop Factor
1.0
1.0
Exposure Compensation
±5 (at 1/3 EV, 1/2 EV steps)
±5 (at 1/3 EV steps)
±5 (at 1/3 EV steps)
Exposure Mode
Auto / Aperture Priority / Shutter Priority / Manual
Auto / Aperture Priority / Shutter Priority / Manual
Auto / Aperture Priority / Shutter Priority / Manual
GPS
No
No
No
ISO Range
100 ~ 32000 (expands to 50 ~ 102400)
100 ~ 6400
100 ~ 25600 (expands to 6 ~ 102400)
Image Stabilization
5-axis (5.5 stops)
No
No
Intervalometer
No
Yes
Processor
Bionz X
Dual TRUE III
Touch Screen
Yes
No
Yes
Video Codecs
MPEG-4, AVCHD, XAVC S
MPEG-4, H.264
Weather Resistance
Yes
Yes
Yes
Performance
Battery Life
650 shots
280 shots
Max Burst Rate
10.0 fps
3.8 fps
18.0 fps
Storage
Two SD/SDHC/SDXC slots (UHS-II support on one)
SD/SDHC/SDXC
SD/SDHC/SDXC (UHS-II supported)
Production
Battery
NP-FZ100 lithium-ion battery and charger
BP-61 lithium-ion battery & charger
BP-51 lithium-ion battery and charger
Debut
2017-10-25
2016-02-23
2019-07-11
Model Name
ILCE-7RM3
Reviews
Neofiliac score
74%
49%
75%
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
- High 45 MP resolution
- Weather-sealed
- Viewfinder with great 1.09x magnification
- Foveon sensor
- High 18.0 fps burst rate
- Exceptionally compact
- Quite light
- Weather-sealed
Cons
- Viewfinder with low 0.78x magnification
- Lacks intervalometer for timelapse
- Menu not touch-enabled
- Very low 3.8 fps burst rate
- Low resolution EVF
- Poor battery life
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