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Sony A7c vs Sony RX100 III

Portability
78
Imaging
76
Features
88
Overall
80
Sony Alpha A7c front
 
Sony Cyber-shot DSC-RX100 III front
Portability
89
Imaging
51
Features
77
Overall
61

Sony A7c vs Sony RX100 III Key Specs

Sony A7c
(Full Review)
  • 24MP - Full frame Sensor
  • 3" Fully Articulated Screen
  • ISO 100 - 51200 (Expand to 204800)
  • Sensor based 5-axis Image Stabilization
  • 3840 x 2160 video
  • Sony E Mount
  • 509g - 124 x 71 x 60mm
  • Launched September 2020
Sony RX100 III
(Full Review)
  • 20MP - 1" Sensor
  • 3" Tilting Display
  • ISO 125 - 12800
  • Optical Image Stabilization
  • 1920 x 1080 video
  • 24-70mm (F1.8-2.8) lens
  • 290g - 102 x 58 x 41mm
  • Introduced May 2014
  • Old Model is Sony RX100 II
  • Successor is Sony RX100 IV
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Sony A7c vs Sony RX100 III Overview

Following is a complete review of the Sony A7c versus Sony RX100 III, one is a Advanced Mirrorless and the other is a Large Sensor Compact and both of them are sold by Sony. The resolution of the A7c (24MP) and the RX100 III (20MP) is fairly close but the A7c (Full frame) and RX100 III (1") enjoy different sensor sizes.

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The A7c was manufactured 6 years after the RX100 III which is a fairly big gap as far as camera technology is concerned. Both cameras offer different body type with the Sony A7c being a Rangefinder-style mirrorless camera and the Sony RX100 III being a Large Sensor Compact camera.

Before diving straight into a in depth comparison, below is a brief synopsis of how the A7c matches up against the RX100 III for portability, imaging, features and an overall score.

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Reasons to pick Sony A7c over the Sony RX100 III

 A7c RX100 III 
IntroducedSeptember 2020May 2014More modern by 78 months
Display typeFully articulatedTiltingFully Articulating display
Touch display Easily navigate

Reasons to pick Sony RX100 III over the Sony A7c

 RX100 III A7c 
Display resolution1229k922kCrisper display (+307k dot)

Common features in the Sony A7c and Sony RX100 III

 A7c RX100 III 
Focus manually More accurate focusing
Display sizing3"3"Equivalent display dimensions
Selfie screen Both are selfie friendly

Sony A7c vs Sony RX100 III Physical Comparison

For those who are aiming to carry around your camera, you'll need to take into account its weight and size. The Sony A7c has external dimensions of 124mm x 71mm x 60mm (4.9" x 2.8" x 2.4") with a weight of 509 grams (1.12 lbs) whilst the Sony RX100 III has specifications of 102mm x 58mm x 41mm (4.0" x 2.3" x 1.6") along with a weight of 290 grams (0.64 lbs).

See the Sony A7c versus Sony RX100 III in the latest Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an Interchangeable Lens Camera will vary depending on the lens you choose at that moment. Here is the front view scale comparison of the A7c against the RX100 III.

Sony A7c vs Sony RX100 III size comparison

Factoring in dimensions and weight, the portability rating of the A7c and RX100 III is 78 and 89 respectively.

Sony A7c vs Sony RX100 III top view buttons comparison

Sony A7c vs Sony RX100 III Sensor Comparison

Typically, its tough to picture the contrast in sensor sizes just by researching specifications. The picture underneath may give you a more clear sense of the sensor dimensions in the A7c and RX100 III.

Plainly, both cameras enjoy different resolutions and different sensor sizes. The A7c because of its larger sensor is going to make getting shallower depth of field less difficult and the Sony A7c will provide you with more detail due to its extra 4 Megapixels. Greater resolution will also help you crop images far more aggressively. The more recent A7c should have an edge when it comes to sensor technology.

Sony A7c vs Sony RX100 III sensor size comparison

Sony A7c vs Sony RX100 III Screen and ViewFinder

Sony A7c vs Sony RX100 III Screen and Viewfinder comparison
Photography Glossary

Photography Type Scores

Portrait Comparison

Portrait photography with Sony A7c
Portrait photography with Sony RX100 III
78
focusing manually
MP count good (24MP)
great sensor size (Full frame)
offers face detection autofocus
delivers RAW files
can't use external flash
64
has manual focus
above average flash sync speed (1/2,000s)
MP count decent (20MP)
sensor size is decent (1")
supports face detection focus
exports RAW formats
no external flash support
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Street Comparison

Sony A7c Street photography features
Sony RX100 III Street photography features
85
built in image stabilization (Sensor based 5-axis)
great sensor size (Full frame)
delivers RAW files
comes with touch to focus
weather sealing
above average high ISO (51,200)
85
screen tilts up and down
image stabilization (Optical)
sensor size is decent (1")
exports RAW formats
lighter than others (290g)
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Sports Comparison

Sony A7c as a Sports photography camera
Sony RX100 III as a Sports photography camera
88
quiet mode (1/8,000 seconds)
built in image stabilization (Sensor based 5-axis)
MP count good (24 megapixels)
great sensor size (Full frame)
offers tracking autofocus
weather sealing
good battery life (740 CIPA)
comes with phase detect autofocus
65
image stabilization (Optical)
MP count decent (20 megapixels)
sensor size is decent (1")
supports tracking autofocus
lack of phase detect auto focus
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Travel Comparison

Sony A7c Travel photography details
Sony RX100 III Travel photography details
86
good battery life (740 per charge)
weather sealing
supports bluetooth
comes with touch to focus
MP count good (24MP)
selfie friendly screen
85
lighter than others (290g)
MP count decent (20MP)
flash built-in
selfie friendly screen
reasonably wide (24mm)
good maximum aperture (f1.8)
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Landscape Comparison

Landscape photography with Sony A7c
Landscape photography with Sony RX100 III
88
focusing manually
switch lenses (Sony E mount)
screen is a good size (3 inches)
built in image stabilization (Sensor based 5-axis)
MP count good (24 megapixels)
great sensor size (Full frame)
above average high ISO (51,200)
delivers RAW files
weather sealing
good battery life (740 per charge)
73
has manual focus
reasonably wide (24mm)
good maximum aperture (f1.8)
screen size is good (3")
image stabilization (Optical)
MP count decent (20MP)
sensor size is decent (1")
exports RAW formats
lens is fixed (fixed lens mount)
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Vlogging Comparison

Vlogging with Sony A7c
Vlogging with Sony RX100 III
86
selfie friendly screen
touchscreen
built in image stabilization (Sensor based 5-axis)
offers face detection autofocus
high res video (3840 x 2160 pixels)
does have external mic socket
80
reasonably wide (24mm)
good maximum aperture (f1.8)
selfie friendly screen
image stabilization (Optical)
supports face detection focus
high res video (1920 x 1080 pixels)
lighter than others (290 grams)
doesn't have external microphone jack
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Sony A7c vs Sony RX100 III Specifications

Detailed spec comparison table for Sony A7c and Sony RX100 III
 Sony Alpha A7cSony Cyber-shot DSC-RX100 III
General Information
Make Sony Sony
Model type Sony Alpha A7c Sony Cyber-shot DSC-RX100 III
Type Advanced Mirrorless Large Sensor Compact
Launched 2020-09-14 2014-05-15
Body design Rangefinder-style mirrorless Large Sensor Compact
Sensor Information
Chip - Bionz X
Sensor type BSI-CMOS BSI-CMOS
Sensor size Full frame 1"
Sensor measurements 35.8 x 23.8mm 13.2 x 8.8mm
Sensor area 852.0mm² 116.2mm²
Sensor resolution 24 megapixels 20 megapixels
Anti alias filter
Aspect ratio 3:2 and 16:9 1:1, 4:3, 3:2 and 16:9
Highest resolution 6000 x 4000 5472 x 3648
Highest native ISO 51200 12800
Highest boosted ISO 204800 -
Lowest native ISO 100 125
RAW support
Lowest boosted ISO 50 -
Autofocusing
Manual focusing
Touch focus
AF continuous
AF single
Tracking AF
Selective AF
Center weighted AF
Multi area AF
AF live view
Face detection AF
Contract detection AF
Phase detection AF
Total focus points 693 25
Lens
Lens support Sony E fixed lens
Lens zoom range - 24-70mm (2.9x)
Highest aperture - f/1.8-2.8
Macro focusing distance - 5cm
Amount of lenses 122 -
Crop factor 1 2.7
Screen
Range of screen Fully articulated Tilting
Screen sizing 3 inches 3 inches
Resolution of screen 922k dot 1,229k dot
Selfie friendly
Liveview
Touch friendly
Viewfinder Information
Viewfinder Electronic Electronic
Viewfinder resolution 2,360k dot 1,440k dot
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.59x 0.59x
Features
Lowest shutter speed 30s 30s
Highest shutter speed 1/4000s 1/2000s
Highest silent shutter speed 1/8000s -
Continuous shooting speed 10.0 frames/s 10.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom WB
Image stabilization
Inbuilt flash
Flash distance no built-in flash -
Flash modes no built-in flash -
External flash
AEB
WB bracketing
Highest flash sync - 1/2000s
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions 3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 (60p/60i/24p), 1280 x 720 (60p/30p/24p/120p), 1440 x 1080 (30 fps), 640 x 480 (30 fps)
Highest video resolution 3840x2160 1920x1080
Video data format MPEG-4, XAVC S, H.264 MPEG-4, AVCHD, XAVC S
Microphone input
Headphone input
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 3.2 Gen 1 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 509 gr (1.12 pounds) 290 gr (0.64 pounds)
Dimensions 124 x 71 x 60mm (4.9" x 2.8" x 2.4") 102 x 58 x 41mm (4.0" x 2.3" x 1.6")
DXO scores
DXO All around rating not tested 67
DXO Color Depth rating not tested 22.4
DXO Dynamic range rating not tested 12.3
DXO Low light rating not tested 495
Other
Battery life 740 photographs 320 photographs
Form of battery Battery Pack Battery Pack
Battery ID NP-FZ100 NP-BX1
Self timer Yes (2 or 10 sec; continuous (3 or 5 exposures)) Yes (2 or 10 sec, self-portrait, continuous)
Time lapse feature With downloadable app
Storage media SD/SDHC/SDXC card (UHS-II supported) SD/ SDHC/SDXC, Memory Stick Pro Duo/ Pro-HG Duo
Storage slots One One
Launch price $1,800 $748