Sony A7R III vs Sigma Quattro H Comparison

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Sony A7R III

42 MP | Full frame (35.9 x 24 mm) BSI-CMOS Sensor

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Sigma Quattro H

45 MP | APS-H (26.6 x 17.9 mm) CMOS (Foveon X3) Sensor

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Sony A7R III vs Sigma Quattro H Comparison Overview

Here we are comparing two Mirrorless cameras from Sony and Sigma. Sony A7R III was introduced to market in October 2017 and Sigma Quattro H was launched in February 2016. There is 20 months difference between A7R III and Quattro H so we don't expect to see a huge technology difference between these two cameras but it would still give an advantage to younger A7R III, especially in sensor tech.

Sony A7R III has a 42.0MP Full frame sensor whereas Sigma Quattro H has a 45.0MP APS-H sensor.

Here is a brief look at the main features of Sony A7R III and Sigma Quattro H before getting into our more detailed comparison.

Sony A7R III Key Specs

Announcement Date: 2017-10-25

42MP - Full frame BSI-CMOS Sensor

No Anti-aliasing (AA) filter

ISO 100 - 32000 ( expands to 50-102400)

Sony E Mount

Sensor-shift Image Stabilization

3 Tilting Screen

3686k dot Electronic viewfinder

10.0 fps continuous shooting

4K (UHD) - 3840 x 2160 video resolution

Built-in Wireless

657g. 127 x 96 x 74 mm

Weather Sealed Body

Replaced Sony Alpha 7R II Compare

Sigma Quattro H Key Specs

Announcement Date: 2016-02-23

45MP - APS-H CMOS (Foveon X3) Sensor

ISO 100 - 6400

Sigma SA Bayonet Mount

3" Fixed Type Screen

2360k dot Electronic viewfinder

3.8 fps continuous shooting

- video resolution

g. 147 x 95 x 91 mm

Weather Sealed Body

Sony A7R III was replaced by Sony Alpha A7R IV. You may also be interested in these comparisons:
Sony Alpha A7R IV vs Sony Alpha A7R III
Sony Alpha A7R IV vs Sigma sd Quattro H

Let's read on the following sections in order to better understand in detail how Sony A7R III and Sigma Quattro H compares and hopefully end up with enough arguments to decide which one is better for you.

Reasons to choose Sony Alpha A7R III over Sigma sd Quattro H

Wireless Connection	Built-In vs None	Better connectivity
Image Stabilization	Sensor-shift vs None	Sharper images at longer focal lengths and long exposures
LCD Screen	Tilting vs Fixed Type	Flexible shooting positions
Touch Screen	Yes vs No	Easy control of camera functions
Viewfinder Magnification	0.78x vs 0.73x	Larger Viewfinder
Max ISO	32.000 vs 6.400	400% higher Max ISO
Number of Focus Points	425 vs 9	416 more focus points
Max Mech. Shutter	1/8000s vs 1/4000s	faster mechanical shutter
Continuous Shooting	10.0fps vs 3.8fps	6.2 fps faster
Microphone Port	Yes vs No	High quality audio recording option
Headphone Port	Yes vs No	better video control
Timelapse Recording	Yes vs No	creative shooting
Viewfinder Resolution	3686.4k dot vs 2360k dot	56% higher resolution
Sensor Pixel Area	20.43µm² vs 18.49µm²	10% larger pixel area
AE Bracketing Range	±5 EV vs ±3 EV	Wide Bracketing range is useful for HDR
Flash Sync Port	Yes vs No	Connect off-camera flash
NFC Connection	Yes vs No	Easy wireless connectivity with compatible devices
Bluetooth	Yes vs No	Connect your camera to other devices via Blueetooth
Storage Slot	2 vs 1	Extra storage slot
Smartphone Remote	Yes vs No	Remote control your camera with a smartphone
Autofocus at f/8 aperture	425 points vs none	Autofocus with teleconverters
UHS Card Support	UHS-II vs none	Read/Write in Ultra High Speeds
Animal Eye AF Tracking	Yes vs No	Easily lock and track focus on animals
Anti Flicker	Yes vs No	Reduced uneven color and exposure under flickering light
Eye Tracking Focus	Yes vs No	Autofocus system locks on the eye and tracks the subject

Reasons to choose Sigma sd Quattro H over Sony Alpha A7R III

Max Sensor Resolution	45 MP vs 42 MP	7% more pixels
LCD Screen Resolution	1.620k dots vs 1.440k dots	12% higher resolution screen
Weight	g vs 657 g	657 g lighter

Common Strengths of Sony Alpha A7R III and Sigma sd Quattro H

External Flash Shoe	Yes vs Yes	Better for flash photography
Viewfinder	Yes (Electronic) vs Yes (Electronic)	Better framing and control
RAW Support	Yes vs Yes	Better image quality
Face Detection Focus	Yes vs Yes	very handy for portraits
Max Resolution	42 MP vs 45 MP	Bigger prints and more details
LCD Screen Resolution	1.440k dots vs 1.620k dots	High resolution screens
Environmental Sealing	Yes vs Yes	shoot at tough conditions
AE Bracketing	Yes vs Yes	Useful for tough lighting conditions and HDR

Common Weaknesses of Sony Alpha A7R III and Sigma sd Quattro H

Built-in Flash	No vs No	Require external flash

Sony A7R III vs Sigma Quattro H: Physical Specs and Body features Comparison

Size and weight is a big decision factor when you are trying to find the ideal camera for your needs. In this section, We are going to illustrate Sony A7R III and Sigma Quattro H side-by-side from the front, back and top in their relative dimensions. Sony A7R III has external dimensions of 127 x 96 x 74 mm (5 x 3.78 x 2.91″) and weighs 657 g (1.45 lb / 23.17 oz) (including batteries). Sigma Quattro H has external dimensions of 147 x 95 x 91 mm (5.79 x 3.74 x 3.58″) and weighs (including batteries).

Below you can see the front view size comparison of Sony A7R III and Sigma Quattro H. Sony A7R III is 20mm narrower and 17mm thinner than Sigma Quattro H but it is also 1mm taller.

Comparison image of Sony A7R III and Sigma Quattro H Size, Weight and External Dimensions - Front View

Here is the back view size comparison of Sony A7R III and Sigma Quattro H.

Comparison image of Sony A7R III and Sigma Quattro H Size and Weight - Back View

Now lets look at the top view comparison of Sony A7R III and Sigma Quattro H.

Top View Comparison image of Sony A7R III and Sigma Quattro H Size

Weight is another important factor especially when deciding on a camera that you want to carry with you all day. Sigma Quattro H is 657g lighter than the Sony A7R III but we don't think this will make a significant difference.

Also keep in mind that body weight is not the only deciding factor when comparing two interchangeable camera bodies, you have to also take into account the lenses that you will be using with these bodies. Since Sony A7R III has a Full frame sensor and Sigma Quattro H has a smaller APS-H sensor, Sigma Quattro H's lenses for a similar focal length and aperture will generally be lighter and smaller than the Sony A7R III lenses.

Weight Comparison

Mirrorless Cameras

A7R III

Quattro H

Min

Average

Max

Thickness Comparison

Mirrorless Cameras

A7R III

Quattro H

Min

Average

Max

Weather Sealing

Both A7R III and Quattro H have weather sealings in their body, making them resistant to water and dust.

LCD Screen Size and Features

Sony A7R III and Sigma Quattro H's LCD screens has the same diagonal size of 3.

On the other hand, Sony A7R III features a Tilting screen where you can change the angle of the screen to make it easier to shoot from waist or over the head levels whereas the Sigma Quattro H has a fixed type screen which provides less flexibility in shooting positions compared to A7R III.

Sony A7R III vs Sigma Quattro H: Sensor Comparison

Sony A7R III has a 42.0MP Full frame (35.9 x 24 mm ) sized BSI-CMOS sensor and features Bionz X processor. On the other hand, Sigma Quattro H has a 45.0MP APS-H (26.6 x 17.9 mm ) sized CMOS (Foveon X3) sensor and features Dual TRUE III processor.

Another difference between these two cameras is that Sony A7R III's sensor lacks anti-alias (Low-Pass) filter. Removing anti-alias filter increases the sharpness and level of detail but at the same time, it increases the chance of moire occurring in certain scenes.

Below you can see the A7R III and Quattro H sensor size comparison.

Sensor Size and Resolution Comparison image of Sony A7R III and Sigma Quattro H Cameras

As seen above, Sony A7R III has a 1.8x Larger sensor area than Sigma Quattro H. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.

Sony A7R III vs Sigma Quattro H Comparison of Available Lenses

Which camera has more lenses?

Number of available lenses is a big decision factor while choosing your interchangeable lens camera. When we look at the available lenses for these two cameras, we see that Sony A7R III has an advantage over Sigma Quattro H. There are 123 lenses for Sony A7R III's Sony E mount, on the other hand there are only 76 lenses for Sigma Quattro H's Sigma SA Bayonet lens mount.

Another important factor is the availability of image stabilization. Sony A7R III has a big advantage in this regard because it has a sensor based image stabilization (IS) which means that all the lenses mounted to this body will be stabilized. A7R III's built-in Image stabilization system is effective to compensate vibration up to 5.0-stops according to CIPA standards.
28 lenses for Sigma SA Bayonet mount with Optical Image Stabilization features.

Lens Type	# of Sony A7R III Lenses	# of Sigma Quattro H Lenses
Standard Zoom	12 (9 Full Frame)	9
Standard Prime	18 (9 Full Frame)	5
Wideangle Zoom	7 (6 Full Frame)	8
Wideangle Prime	39 (23 Full Frame)	8
Telephoto Zoom	9 (7 Full Frame)	18
Telephoto Prime	18 (14 Full Frame)	8
SuperZoom	8 (1 Full Frame)	9
Wideangle Fisheye Prime	2 (0 Full Frame)	4
Macro Prime	8 (7 Full Frame)	7
Perspective Control Prime	2 (2 Full Frame)	n/a
Telephoto Mirror Prime	n/a	n/a
TOTAL	123 (78 Full Frame)	76

What types of Photography are Sony A7R III and Sigma Quattro H Good for?

In this section, we rank and compare Sony A7R III and Sigma Quattro H for five different photography types in order to make your decision process easier in case you are specifically interested in one or more of these areas.

Sony A7R III for Portrait Photography

EXCELLENT

Sigma Quattro H for Portrait Photography

GOOD

Large Full frame (35.9 x 24 mm) sensor
Very High Resolution Sensor: 42.0MP
Image Stabilization
Electronic Built-in Viewfinder
Good Ergonomics&Handling
Read the details

Large APS-H (26.6 x 17.9 mm) sensor
Very High Resolution Sensor: 45.0MP
Electronic Built-in Viewfinder
Average Ergonomics&Handling
No Image Stabilization
Read the details

Sony A7R III for Street Photography

EXCELLENT

Sigma Quattro H for Street Photography

AVERAGE

Large Full frame (35.9 x 24 mm) sensor
Image Stabilization
Electronic Built-in Viewfinder
Live-view
Face-Detection Focusing
Tilting LCD Screen
Medium sized Body
Read the details

Large APS-H (26.6 x 17.9 mm) sensor
Electronic Built-in Viewfinder
Live-view
Face-Detection Focusing
Medium sized Body
No Image Stabilization
Read the details

Sony A7R III for Sports Photography

GOOD

Sigma Quattro H for Sports Photography

AVERAGE

Image Stabilization
Electronic Built-in Viewfinder
Good Ergonomics&Handling
Fast Continuous Shooting: 10.0fps
Anti Flicker feature
Environmental Sealings
Fast Max shutter speed: 1/8000s
425 Focus Points
Good Battery Life: 650 shots
Good Low Light ISO
Wireless Connection
Read the details

Electronic Built-in Viewfinder
Environmental Sealings
Fast Max shutter speed: 1/4000s
Average Ergonomics&Handling
Average Continuous Shooting: 3.8fps
No Image Stabilization
Slow Continuous Shooting: 3.8fps
9 Focus Points
Read the details

Sony A7R III for Daily Photography

EXCELLENT

Sigma Quattro H for Daily Photography

AVERAGE

Large Full frame (35.9 x 24 mm) sensor
Anti Flicker feature
Environmental Sealings
Medium size Body
657g
Body Thickness 74mm
Read the details

Large APS-H (26.6 x 17.9 mm) sensor
Environmental Sealings
Medium size Body
Body Thickness 91mm
Read the details

Sony A7R III for Landscape Photography

GOOD

Sigma Quattro H for Landscape Photography

AVERAGE

Large Full frame (35.9 x 24 mm) sensor
Very High Resolution Sensor: 42.0MP
Environmental Sealings
Live-view
Read the details

Large APS-H (26.6 x 17.9 mm) sensor
Very High Resolution Sensor: 45.0MP
Environmental Sealings
Live-view
Read the details

Sony A7R III vs Sigma Quattro H: OUR DECISION

You may have already made your decision about which camera suits better for your needs and your budget so far but in case you wonder how we rated Sony A7R III and Sigma Quattro H, below you can find their scores in five different aspects. Our Decision Algorithm dynamically scores cameras using 63 different specs, current price and DxO Mark scores (where possible) in order to make a more objective and consistent comparison.

Here is a summary of how Sony A7R III and Sigma Quattro H scores compare:

Sony A7R III

Imaging

Features

Value

Portability

Overall

Ranked #4 out of 85 in SLR-style mirrorless cameras
Ranked #4 out of 1219 in all Cameras

Sigma Quattro H

Imaging

Features

Value

Portability

Overall

Ranked #76 out of 126 in Rangefinder-style mirrorless cameras
Ranked #341 out of 1219 in all Cameras

Sony A7R III is the clear winner of this comparison. It has a higher Overall Score and beats Sigma Quattro H in all criteria. It has better general image quality, more features, more compact body and offers more value for the money

Sigma Quattro H vs Sony A7R III Specs Table

Detailed comparison of specifications

General	Sony Alpha A7R III	Sigma sd Quattro H
Brand	Sony	Sigma
Announced	2017-10-25	2016-02-23
Body Type	SLR-style mirrorless	Rangefinder-style mirrorless
Sensor
Type	BSI-CMOS	CMOS (Foveon X3)
Size	Full frame	APS-H
Dimensions	35.9 x 24 mm	26.6 x 17.9 mm
Area	861.60mm²	476.14mm²
Megapixels	42 megapixels	45 megapixels
Max Resolution	7952 x 5304	6200 x 4152
Max Native Light sensitivity	32,000 ISO	6,400 ISO
Max Boosted Light Sensitivity	102400 ISO	-
Min Native Light sensitivity	100 ISO	100 ISO
Min Boosted Light Sensitivity	50 ISO	-
RAW Support
Autofocus
AF Touch
AF Continuous
AF Single
AF Tracking
AF Selective
AF Center
AF Multi Area
AF Live View
AF Face Detection
AF Contrast Detection
AF Phase Detection
Number of Focus Points	425	9
Lens
Manual Focus
Lens Mount	Sony E	Sigma SA Bayonet
Number of Available Lenses	123	76
Screen
Type	Tilting	Fixed type
Size	3	3"
Resolution	1,440k dots	1,620k dots
Touch Screen
Viewfinder
Viewfinder	Electronic	Electronic
Viewfinder Resolution	3,686k dots	2,360k dots
Viewfinder Coverage	100%	100%
Viewfinder Magnification	0.78x	0.73x
Photography Features
Max Mechanical Shutter	1/8000s	1/4000s
Shutter Priority
Aperture Priority
Manual Exposure Mode
Custom White Balance
Image Stabilization	Sensor-shift	No
Built-in Flash
External Flash
Continuous Shooting	10.0 fps	3.8 fps
Multi-Segment
Average
Spot
Partial
AF-Area
Center Weighted
AE Bracketing
WB Bracketing
Video Features
Max Video Resolution	3840 x 2160	n/a
Video Formats	MPEG-4, AVCHD, XAVC S	n/a
Microphone Port
Headphone Port
Connectivity
Wireless Connectivity	Built-In	None
HDMI
Physical
Environmental Sealing
Weight	657g	n/a
Dimensions	127 x 96 x 74mm	147 x 95 x 91mm
Battery Life	650 shots	n/a
Other Features
Timelapse Recording
GPS	None	None
DxO Sensor Scores
DxO Overall Score	100	not tested
DxO Color Depth	26.0	not tested
DxO Dynamic Range	14.7	not tested
DxO Low Light ISO	3523	not tested
	Report a correction	Report a correction