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Sigma fp vs Sony A9

Portability
84
Imaging
76
Features
79
Overall
77
Sigma fp front
 
Sony Alpha A9 front
Portability
65
Imaging
74
Features
93
Overall
81

Sigma fp vs Sony A9 Key Specs

Sigma fp
(Full Review)
  • 25MP - Full frame Sensor
  • 3.2" Fixed Screen
  • ISO 100 - 25600 (Bump to 102400)
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Leica L Mount
  • 422g - 113 x 70 x 45mm
  • Introduced July 2019
  • Successor is Sigma fp L
Sony A9
(Full Review)
  • 24MP - Full frame Sensor
  • 3" Tilting Display
  • ISO 100 - 51200 (Increase to 204800)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 673g - 127 x 96 x 63mm
  • Introduced April 2017
  • Newer Model is Sony A9 II
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Sigma fp vs Sony A9 Overview

Let's look a little more closely at the Sigma fp vs Sony A9, one being a Advanced Mirrorless and the other is a Pro Mirrorless by rivals Sigma and Sony. The sensor resolution of the fp (25MP) and the A9 (24MP) is very similar and both cameras have the same sensor dimensions (Full frame).

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The fp was manufactured 2 years later than the A9 and that is quite a sizable gap as far as technology is concerned. The two cameras have different body design with the Sigma fp being a Rangefinder-style mirrorless camera and the Sony A9 being a SLR-style mirrorless camera.

Before delving straight to a in-depth comparison, here is a concise summary of how the fp grades against the A9 in terms of portability, imaging, features and an overall rating.

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Reasons to pick Sigma fp over the Sony A9

 fp A9 
IntroducedJuly 2019April 2017Fresher by 28 months
Display dimensions3.2"3"Larger display (+0.2")
Display resolution2100k1440kClearer display (+660k dot)

Reasons to pick Sony A9 over the Sigma fp

 A9 fp 
Display typeTiltingFixed Tilting display

Common features in the Sigma fp and Sony A9

 fp A9 
Focus manually Very precise focusing
Selfie screen Neither has selfie screen
Touch display Easily navigate

Sigma fp vs Sony A9 Physical Comparison

If you're looking to carry your camera regularly, you're going to have to take into account its weight and measurements. The Sigma fp has outer measurements of 113mm x 70mm x 45mm (4.4" x 2.8" x 1.8") having a weight of 422 grams (0.93 lbs) whilst the Sony A9 has proportions of 127mm x 96mm x 63mm (5.0" x 3.8" x 2.5") accompanied by a weight of 673 grams (1.48 lbs).

Check out the Sigma fp vs Sony A9 in the latest Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an Interchangeable Lens Camera will change depending on the lens you are employing at that time. Following is a front view physical size comparison of the fp versus the A9.

Sigma fp vs Sony A9 size comparison

Considering dimensions and weight, the portability rating of the fp and A9 is 84 and 65 respectively.

Sigma fp vs Sony A9 top view buttons comparison

Sigma fp vs Sony A9 Sensor Comparison

More often than not, it is tough to imagine the contrast between sensor sizing just by reading specifications. The graphic below might give you a better sense of the sensor sizing in the fp and A9.

To sum up, the two cameras have the same sensor dimensions but different resolution. You should expect to see the Sigma fp to offer extra detail due to its extra 1 Megapixels. Greater resolution will also enable you to crop pics a bit more aggressively. The more modern fp provides a benefit with regard to sensor innovation.

Sigma fp vs Sony A9 sensor size comparison

Sigma fp vs Sony A9 Screen and ViewFinder

Sigma fp vs Sony A9 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Sigma fp
Portrait photography with Sony A9
85
manual focus
fantastic MP (25MP)
sensor size is great (Full frame)
has face detection focus
delivers RAW files
84
has manual focus
decent sensor resolution (24 megapixels)
sensor size is large (Full frame)
has face detect focusing
delivers RAW files
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Street Comparison

Sigma fp as a Street photography camera
Sony A9 as a Street photography camera
77
sensor size is great (Full frame)
delivers RAW files
comes with touch focus
weather proofing
good high ISO (25,600)
no articulating screen
lack of image stabilization
79
screen tilts
has image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
delivers RAW files
features focus via touch
environment sealing
good ISO range (51,200)
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Sports Comparison

Sigma fp Sports photography details
Sony A9 Sports photography details
73
max shutter speed is good (1/8,000s)
fantastic MP (25 megapixels)
sensor size is great (Full frame)
has tracking autofocus
weather proofing
lack of image stabilization
does not have phase detect auto focus
87
great max shutter speed (1/8,000 seconds)
silent mode (1/32,000 seconds)
high max frames per second (20.0 frames per second)
has image stabilization (Sensor based 5-axis)
decent sensor resolution (24 megapixels)
sensor size is large (Full frame)
has tracking focus
environment sealing
great battery life (650 per charge)
supports phase detect AF
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Travel Comparison

Sigma fp Travel photography factors
Sony A9 Travel photography factors
78
weather proofing
comes with touch focus
fantastic MP (25 megapixels)
does not contain selfie friendly screen
74
great battery life (650 CIPA)
environment sealing
has bluetooth
features focus via touch
decent sensor resolution (24 megapixels)
screen isn't selfie friendly
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Landscape Comparison

Sigma fp as a Landscape photography camera
Sony A9 as a Landscape photography camera
83
manual focus
change lenses (Leica L mount)
nice screen size (3.2")
fantastic MP (25 megapixels)
sensor size is great (Full frame)
good high ISO (25,600)
delivers RAW files
weather proofing
lack of image stabilization
86
has manual focus
change lenses (Sony E mount)
pretty good screen size (3 inches)
has image stabilization (Sensor based 5-axis)
decent sensor resolution (24MP)
sensor size is large (Full frame)
good ISO range (51,200)
delivers RAW files
environment sealing
great battery life (650 CIPA)
has dual storage slots
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Vlogging Comparison

Sigma fp as a Vlogging camera
Sony A9 as a Vlogging camera
37
touchscreen functionality
has face detection focus
video resolution high (3840 x 2160 pxls)
does have external microphone jack
does not contain selfie friendly screen
lack of image stabilization
37
has touchscreen
has image stabilization (Sensor based 5-axis)
has face detect focusing
video resolution high (3840 x 2160 pixels)
comes with mic jack
screen isn't selfie friendly
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Sigma fp vs Sony A9 Specifications

Detailed spec comparison table for Sigma fp and Sony A9
 Sigma fpSony Alpha A9
General Information
Brand Name Sigma Sony
Model Sigma fp Sony Alpha A9
Category Advanced Mirrorless Pro Mirrorless
Introduced 2019-07-11 2017-04-19
Body design Rangefinder-style mirrorless SLR-style mirrorless
Sensor Information
Processor - BIONZ X
Sensor type BSI-CMOS BSI-CMOS
Sensor size Full frame Full frame
Sensor dimensions 35.9 x 23.9mm 35.6 x 23.8mm
Sensor area 858.0mm² 847.3mm²
Sensor resolution 25 megapixel 24 megapixel
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2 and 16:9
Peak resolution 6000 x 4000 6000 x 4000
Highest native ISO 25600 51200
Highest enhanced ISO 102400 204800
Minimum native ISO 100 100
RAW photos
Minimum enhanced ISO 6 50
Autofocusing
Manual focus
AF touch
AF continuous
Single AF
AF tracking
Selective AF
Center weighted AF
Multi area AF
AF live view
Face detection focusing
Contract detection focusing
Phase detection focusing
Number of focus points 49 693
Lens
Lens mount Leica L Sony E
Available lenses 30 121
Focal length multiplier 1 1
Screen
Screen type Fixed Type Tilting
Screen size 3.2" 3"
Resolution of screen 2,100k dot 1,440k dot
Selfie friendly
Liveview
Touch friendly
Viewfinder Information
Viewfinder None Electronic
Viewfinder resolution - 3,686k dot
Viewfinder coverage - 100 percent
Viewfinder magnification - 0.78x
Features
Minimum shutter speed 30 secs 30 secs
Fastest shutter speed 1/8000 secs 1/8000 secs
Fastest silent shutter speed - 1/32000 secs
Continuous shutter speed 12.0 frames per sec 20.0 frames per sec
Shutter priority
Aperture priority
Expose Manually
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
Hot shoe
Auto exposure bracketing
WB bracketing
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 -
Highest video resolution 3840x2160 3840x2160
Video file format MPEG-4, H.264 MPEG-4, AVCHD, H.264
Mic input
Headphone input
Connectivity
Wireless No Built-In
Bluetooth
NFC
HDMI
USB Yes USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 422 gr (0.93 pounds) 673 gr (1.48 pounds)
Physical dimensions 113 x 70 x 45mm (4.4" x 2.8" x 1.8") 127 x 96 x 63mm (5.0" x 3.8" x 2.5")
DXO scores
DXO Overall score not tested 92
DXO Color Depth score not tested 24.9
DXO Dynamic range score not tested 13.3
DXO Low light score not tested 3517
Other
Battery life - 650 images
Battery format - Battery Pack
Battery model BP-51 NP-FZ100
Self timer Yes (2 or 10 wec) Yes (2, 5, 10 secs + continuous)
Time lapse feature
Type of storage SD/SDHC/SDXC (UHS-II supported) Dual SD/SDHC/SDXC slots (UHS-II compatible)
Storage slots 1 2
Price at release $2,050 $4,498