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Sigma fp vs Sony A7R IV

Portability
84
Imaging
76
Features
79
Overall
77
Sigma fp front
 
Sony Alpha A7R IV front
Portability
62
Imaging
81
Features
93
Overall
85

Sigma fp vs Sony A7R IV Key Specs

Sigma fp
(Full Review)
  • 25MP - Full frame Sensor
  • 3.2" Fixed Display
  • ISO 100 - 25600 (Push to 102400)
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Leica L Mount
  • 422g - 113 x 70 x 45mm
  • Launched July 2019
  • Renewed by Sigma fp L
Sony A7R IV
(Full Review)
  • 61MP - Full frame Sensor
  • 3" Tilting Screen
  • ISO 100 - 32000 (Raise to 102800)
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 665g - 129 x 96 x 78mm
  • Launched July 2019
  • Previous Model is Sony A7R III
  • Successor is Sony A7R V
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Sigma fp vs Sony A7R IV Overview

The following is a comprehensive assessment of the Sigma fp vs Sony A7R IV, one is a Advanced Mirrorless and the latter is a Pro Mirrorless by companies Sigma and Sony. There is a huge difference between the image resolutions of the fp (25MP) and A7R IV (61MP) but they come with the exact same sensor dimensions (Full frame).

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The fp was released at a similar time to the A7R IV so they are of a similar generation. Both the cameras come with different body type with the Sigma fp being a Rangefinder-style mirrorless camera and the Sony A7R IV being a SLR-style mirrorless camera.

Before getting in to a step-by-step comparison, below is a brief overview of how the fp grades vs the A7R IV in the way of portability, imaging, features and an overall mark.

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Reasons to pick Sigma fp over the Sony A7R IV

 fp A7R IV 
Screen dimension3.2"3"Bigger screen (+0.2")
Screen resolution2100k1440kCrisper screen (+660k dot)

Reasons to pick Sony A7R IV over the Sigma fp

 A7R IV fp 
Screen typeTiltingFixed Tilting screen

Common features in the Sigma fp and Sony A7R IV

 fp A7R IV 
LaunchedJuly 2019July 2019Similar generation
Focus manually Dial precise focusing
Selfie screen Lack of selfie screen
Touch screen Quickly navigate

Sigma fp vs Sony A7R IV Physical Comparison

For anyone who is planning to travel with your camera regularly, you will want to think about its weight and size. The Sigma fp features physical dimensions of 113mm x 70mm x 45mm (4.4" x 2.8" x 1.8") and a weight of 422 grams (0.93 lbs) whilst the Sony A7R IV has specifications of 129mm x 96mm x 78mm (5.1" x 3.8" x 3.1") and a weight of 665 grams (1.47 lbs).

Check the Sigma fp vs Sony A7R IV in the all new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an Interchangeable Lens Camera will differ depending on the lens you are employing at that moment. Here is the front view measurement comparison of the fp vs the A7R IV.

Sigma fp vs Sony A7R IV size comparison

Factoring in size and weight, the portability rating of the fp and A7R IV is 84 and 62 respectively.

Sigma fp vs Sony A7R IV top view buttons comparison

Sigma fp vs Sony A7R IV Sensor Comparison

Usually, it's tough to picture the difference between sensor dimensions only by going over technical specs. The image here might give you a better sense of the sensor dimensions in the fp and A7R IV.

As you can tell, both of the cameras have got the exact same sensor measurements albeit different MP. You should count on the Sony A7R IV to offer you extra detail as a result of its extra 36 Megapixels. Higher resolution will also let you crop photographs much more aggressively.

Sigma fp vs Sony A7R IV sensor size comparison

Sigma fp vs Sony A7R IV Screen and ViewFinder

Sigma fp vs Sony A7R IV Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Sigma fp
Portrait photography with Sony A7R IV
85
you can focus manually
amazing resolution (25MP)
sensor size is large (Full frame)
has face detection focusing
supports RAW files
88
you can focus manually
megapixel count fantastic (61MP)
sensor size is large (Full frame)
supports face detection focusing
saves RAW files
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Street Comparison

Street photography with Sigma fp
Street photography with Sony A7R IV
77
sensor size is large (Full frame)
supports RAW files
features focus by touch
environment sealing
very good ISO range (25,600)
screen is fixed
does not have image stabilization
79
screen tilts up and down
image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
saves RAW files
supports touch to focus
environment sealing
above average ISO range (32,000)
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Sports Comparison

Sigma fp Sports photography information
Sony A7R IV Sports photography information
73
max shutter speed is good (1/8,000s)
amazing resolution (25MP)
sensor size is large (Full frame)
has tracking autofocus
environment sealing
does not have image stabilization
no phase detect AF
90
great max shutter speed (1/8,000 seconds)
image stabilization (Sensor based 5-axis)
megapixel count fantastic (61 megapixels)
sensor size is large (Full frame)
supports tracking autofocus
environment sealing
good battery (670 per charge)
supports phase detect AF
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Travel Comparison

Sigma fp as a Travel photography camera
Sony A7R IV as a Travel photography camera
78
environment sealing
features focus by touch
amazing resolution (25 megapixels)
does not feature selfie friendly display
74
good battery (670 shots)
environment sealing
supports bluetooth
supports touch to focus
megapixel count fantastic (61MP)
doesn't offer selfie friendly display
Photography Glossary

Landscape Comparison

Sigma fp Landscape photography advice
Sony A7R IV Landscape photography advice
83
you can focus manually
switch lenses (Leica L mount)
good sized screen (3.2 inch)
amazing resolution (25MP)
sensor size is large (Full frame)
very good ISO range (25,600)
supports RAW files
environment sealing
does not have image stabilization
88
you can focus manually
switch lenses (Sony E mount)
screen size is good (3")
image stabilization (Sensor based 5-axis)
megapixel count fantastic (61MP)
sensor size is large (Full frame)
doesnt have low pass filter
above average ISO range (32,000)
saves RAW files
environment sealing
good battery (670 shots)
two card slots
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Vlogging Comparison

Sigma fp as a Vlogging camera
Sony A7R IV as a Vlogging camera
37
touchscreen functionality
has face detection focusing
high quality video (3840 x 2160 resolution)
comes with external microphone port
does not feature selfie friendly display
does not have image stabilization
37
has touchscreen
image stabilization (Sensor based 5-axis)
supports face detection focusing
video res high (3840 x 2160 pixels)
comes with external mic socket
doesn't offer selfie friendly display
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Sigma fp vs Sony A7R IV Specifications

Detailed spec comparison table for Sigma fp and Sony A7R IV
 Sigma fpSony Alpha A7R IV
General Information
Make Sigma Sony
Model Sigma fp Sony Alpha A7R IV
Class Advanced Mirrorless Pro Mirrorless
Launched 2019-07-11 2019-07-16
Physical type Rangefinder-style mirrorless SLR-style mirrorless
Sensor Information
Powered by - Bionz X
Sensor type BSI-CMOS BSI-CMOS
Sensor size Full frame Full frame
Sensor dimensions 35.9 x 23.9mm 35.8 x 23.8mm
Sensor surface area 858.0mm² 852.0mm²
Sensor resolution 25MP 61MP
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 1:1, 4:3, 3:2 and 16:9
Full resolution 6000 x 4000 9504 x 6336
Max native ISO 25600 32000
Max boosted ISO 102400 102800
Min native ISO 100 100
RAW photos
Min boosted ISO 6 50
Autofocusing
Focus manually
AF touch
AF continuous
AF single
AF tracking
AF selectice
Center weighted AF
Multi area AF
Live view AF
Face detect AF
Contract detect AF
Phase detect AF
Number of focus points 49 567
Lens
Lens mount Leica L Sony E
Number of lenses 30 121
Focal length multiplier 1 1
Screen
Display type Fixed Type Tilting
Display diagonal 3.2" 3"
Display resolution 2,100k dots 1,440k dots
Selfie friendly
Liveview
Touch capability
Viewfinder Information
Viewfinder None Electronic
Viewfinder resolution - 5,760k dots
Viewfinder coverage - 100 percent
Viewfinder magnification - 0.78x
Features
Slowest shutter speed 30s 30s
Maximum shutter speed 1/8000s 1/8000s
Continuous shooting rate 12.0fps 10.0fps
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Set WB
Image stabilization
Inbuilt flash
Flash range no built-in flash no built-in flash
Flash modes no built-in flash Flash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction, Wireless, Hi-speed sync.
External flash
AE bracketing
WB bracketing
Maximum flash synchronize - 1/250s
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 3840 x 2160 @ 30p, MOV, H.264, Linear PCM 3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM
Max video resolution 3840x2160 3840x2160
Video data format MPEG-4, H.264 MPEG-4, XAVC S, H.264
Mic port
Headphone port
Connectivity
Wireless No Built-In
Bluetooth
NFC
HDMI
USB Yes USB 3.1 Gen 1(5 GBit/sec)
GPS None None
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 422g (0.93 lbs) 665g (1.47 lbs)
Dimensions 113 x 70 x 45mm (4.4" x 2.8" x 1.8") 129 x 96 x 78mm (5.1" x 3.8" x 3.1")
DXO scores
DXO All around score not tested 99
DXO Color Depth score not tested 26.0
DXO Dynamic range score not tested 14.8
DXO Low light score not tested 3344
Other
Battery life - 670 photographs
Type of battery - Battery Pack
Battery model BP-51 NP-FZ100
Self timer Yes (2 or 10 wec) Yes
Time lapse recording
Type of storage SD/SDHC/SDXC (UHS-II supported) Dual SD/SDHC/SDXC (UHS-II compatible)
Card slots 1 Dual
Price at launch $2,050 $3,498