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Sigma fp L vs Sony A7S III

Portability
83
Imaging
82
Features
80
Overall
81
Sigma fp L front
 
Sony Alpha A7S III front
Portability
61
Imaging
65
Features
92
Overall
75

Sigma fp L vs Sony A7S III Key Specs

Sigma fp L
(Full Review)
  • 61MP - Full frame Sensor
  • 3.2" Fixed Screen
  • ISO 100 - 25600 (Bump to 102400)
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Leica L Mount
  • 427g - 113 x 70 x 45mm
  • Announced March 2021
  • Old Model is Sigma fp
Sony A7S III
(Full Review)
  • 12MP - Full frame Sensor
  • 3" Fully Articulated Display
  • ISO 80 - 102400 (Expand to 409600)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 699g - 129 x 97 x 81mm
  • Launched July 2020
  • Replaced the Sony A7S II
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Sigma fp L vs Sony A7S III Overview

Below, we are contrasting the Sigma fp L vs Sony A7S III, one being a Advanced Mirrorless and the other is a Pro Mirrorless by manufacturers Sigma and Sony. There is a crucial difference among the resolutions of the fp L (61MP) and A7S III (12MP) but they possess the exact same sensor size (Full frame).

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The fp L was launched 9 months later than the A7S III which means that they are both of a similar generation. Both the cameras come with different body type with the Sigma fp L being a Rangefinder-style mirrorless camera and the Sony A7S III being a SLR-style mirrorless camera.

Before diving in to a step-by-step comparison, below is a short highlight of how the fp L scores against the A7S III in regards to portability, imaging, features and an overall rating.

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Reasons to pick Sigma fp L over the Sony A7S III

 fp L A7S III 
LaunchedMarch 2021July 2020Fresher by 9 months
Display dimension3.2"3"Larger display (+0.2")
Display resolution2100k1440kSharper display (+660k dot)

Reasons to pick Sony A7S III over the Sigma fp L

 A7S III fp L 
Display typeFully articulatedFixed Fully Articulating display
Selfie screen Easy selfies

Common features in the Sigma fp L and Sony A7S III

 fp L A7S III 
Manually focus Very precise focusing
Touch display Easily navigate

Sigma fp L vs Sony A7S III Physical Comparison

If you're looking to carry your camera frequently, you'll need to take into account its weight and proportions. The Sigma fp L provides physical measurements of 113mm x 70mm x 45mm (4.4" x 2.8" x 1.8") and a weight of 427 grams (0.94 lbs) while the Sony A7S III has measurements of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") and a weight of 699 grams (1.54 lbs).

See the Sigma fp L vs Sony A7S III in the latest Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an Interchangeable Lens Camera will vary based on the lens you are working with during that time. Underneath is the front view over all size comparison of the fp L compared to the A7S III.

Sigma fp L vs Sony A7S III size comparison

Considering size and weight, the portability rating of the fp L and A7S III is 83 and 61 respectively.

Sigma fp L vs Sony A7S III top view buttons comparison

Sigma fp L vs Sony A7S III Sensor Comparison

Usually, it is hard to see the gap in sensor sizing only by checking out technical specs. The visual here might give you a stronger sense of the sensor sizing in the fp L and A7S III.

As you have seen, both of these cameras posses the exact same sensor measurements but not the same MP. You should anticipate the Sigma fp L to show greater detail utilizing its extra 49 Megapixels. Greater resolution will enable you to crop photos somewhat more aggressively. The fresher fp L will have an edge with regard to sensor tech.

Sigma fp L vs Sony A7S III sensor size comparison

Sigma fp L vs Sony A7S III Screen and ViewFinder

Sigma fp L vs Sony A7S III Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Sigma fp L
Portrait photography with Sony A7S III
89
you can focus manually
megapixel count great (61MP)
sensor size is large (Full frame)
has face detect focusing
exports RAW formats
71
manual focus
big sensor size (Full frame)
offers face detection autofocus
supports RAW files
sensor resolution low (12 megapixels)
Photography Glossary

Street Comparison

Sigma fp L as a Street photography camera
Sony A7S III as a Street photography camera
78
sensor size is large (Full frame)
exports RAW formats
boasts focus via touch
weather proof
good high ISO (25,600)
screen is fixed
lack of image stabilization
76
built in image stabilization (Sensor based 5-axis)
big sensor size (Full frame)
supports RAW files
includes touch focus
weather sealing
very good high ISO (102,400)
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Sports Comparison

Sigma fp L Sports photography factors
Sony A7S III Sports photography factors
78
great max shutter speed (1/8,000 seconds)
megapixel count great (61 megapixels)
sensor size is large (Full frame)
has tracking focus
weather proof
sensor has phase detect AF
lack of image stabilization
bad battery power (240 CIPA)
76
high shutter speed (1/8,000 seconds)
built in image stabilization (Sensor based 5-axis)
big sensor size (Full frame)
offers tracking autofocus
weather sealing
better than average battery pack (600 per charge)
has phase detect autofocus
sensor resolution low (12MP)
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Travel Comparison

Travel photography with Sigma fp L
Travel photography with Sony A7S III
73
weather proof
boasts focus via touch
megapixel count great (61 megapixels)
bad battery power (240 shots)
doesn't feature selfie friendly display
70
better than average battery pack (600 CIPA)
weather sealing
has bluetooth
includes touch focus
screen is selfie friendly
sensor resolution low (12 megapixels)
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Landscape Comparison

Sigma fp L Landscape photography advice
Sony A7S III Landscape photography advice
81
you can focus manually
interchangeable lenses (Leica L mount)
good sized screen (3.2 inch)
megapixel count great (61 megapixels)
sensor size is large (Full frame)
good high ISO (25,600)
exports RAW formats
weather proof
lack of image stabilization
bad battery power (240 CIPA)
77
manual focus
swap lenses (Sony E mount)
screen size is good (3 inch)
built in image stabilization (Sensor based 5-axis)
big sensor size (Full frame)
very good high ISO (102,400)
supports RAW files
weather sealing
better than average battery pack (600 CIPA)
has double storage slots
sensor resolution low (12 megapixels)
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Vlogging Comparison

Sigma fp L Vlogging info
Sony A7S III Vlogging info
38
touchscreen enabled
has face detect focusing
great video quality (3840 x 2160 resolution)
includes mic jack
doesn't feature selfie friendly display
lack of image stabilization
77
screen is selfie friendly
touchscreen functionality
built in image stabilization (Sensor based 5-axis)
offers face detection autofocus
high video quality (3840 x 2160 resolution)
has external mic port
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Sigma fp L vs Sony A7S III Specifications

Detailed spec comparison table for Sigma fp L and Sony A7S III
 Sigma fp LSony Alpha A7S III
General Information
Make Sigma Sony
Model Sigma fp L Sony Alpha A7S III
Type Advanced Mirrorless Pro Mirrorless
Announced 2021-03-25 2020-07-21
Body design Rangefinder-style mirrorless SLR-style mirrorless
Sensor Information
Powered by - Bionz XR
Sensor type BSI-CMOS BSI-CMOS
Sensor size Full frame Full frame
Sensor dimensions 36 x 24mm 35.6 x 23.8mm
Sensor area 864.0mm² 847.3mm²
Sensor resolution 61 megapixels 12 megapixels
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2 and 16:9
Max resolution 9520 x 6328 4240 x 2832
Max native ISO 25600 102400
Max enhanced ISO 102400 409600
Minimum native ISO 100 80
RAW images
Minimum enhanced ISO 6 50
Autofocusing
Manual focus
Autofocus touch
Autofocus continuous
Autofocus single
Tracking autofocus
Selective autofocus
Autofocus center weighted
Multi area autofocus
Autofocus live view
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Number of focus points 49 759
Lens
Lens mounting type Leica L Sony E
Number of lenses 40 121
Crop factor 1 1
Screen
Screen type Fixed Type Fully articulated
Screen size 3.2" 3"
Resolution of screen 2,100 thousand dot 1,440 thousand dot
Selfie friendly
Liveview
Touch capability
Viewfinder Information
Viewfinder type Electronic (optional) Electronic
Viewfinder resolution 3,680 thousand dot 9,440 thousand dot
Viewfinder coverage 100% 100%
Viewfinder magnification 0.83x 0.91x
Features
Min shutter speed 30 secs 30 secs
Max shutter speed 1/8000 secs 1/8000 secs
Continuous shutter speed 10.0fps 10.0fps
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Set white balance
Image stabilization
Integrated flash
Flash range no built-in flash no built-in flash
Flash modes no built-in flash no built-in flash
Hot shoe
AE bracketing
WB bracketing
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 3840 x 2160 @ 30p, MOV, H.264, Linear PCM3840 x 2160 @ 25p, MOV, H.264, Linear PCM3840 x 2160 @ 23.98p, MOV, H.264, Linear PCM1920 x 1080 @ 120p, MOV, H.264, Linear PCM1920 x 1080 @ 100p, MOV, H.264, Linear PCM1920 x 1080 @ 60p, MOV, H.264, Linear PCM1920 x 1080 @ 50p, MOV, H.264, Linear PCM1920 x 1080 @ 30p, MOV, H.264, Linear PCM1920 x 1080 @ 25p, MOV, H.264, Linear PCM1920 x 1080 @ 23.98p, MOV, H.264, Linear PCM 3840 x 2160 @ 120p / 280 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 100p / 280 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 60p / 200 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 50p / 200 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 30p / 140 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 25p / 140 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 24p / 100 Mbps, XAVC S, MP4, H.265, Linear PCM 1920 x 1080 @ 120p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 100p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 60p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 50p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 25p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 24p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM
Max video resolution 3840x2160 3840x2160
Video file format MPEG-4, H.264 MPEG-4, XAVC S, XAVC HS, XAVC S-1, H.264, H.265
Mic jack
Headphone jack
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB Yes (USB Power Delivery supported) USB 3.2 Gen 1 (5 GBit/sec)
GPS None None
Physical
Environment seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 427g (0.94 lb) 699g (1.54 lb)
Dimensions 113 x 70 x 45mm (4.4" x 2.8" x 1.8") 129 x 97 x 81mm (5.1" x 3.8" x 3.2")
DXO scores
DXO Overall score not tested 85
DXO Color Depth score not tested 23.6
DXO Dynamic range score not tested 13.3
DXO Low light score not tested 2993
Other
Battery life 240 photographs 600 photographs
Type of battery Battery Pack Battery Pack
Battery model BP-51 NP-FZ100
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec; continuous (3 or 5 exposures))
Time lapse shooting With downloadable app
Type of storage SD/SDHC/SDXC (UHS-II supported) Dual SD/CFexpress Type A slots
Storage slots One Two
Price at release $2,499 $3,499