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Sigma fp L vs Sony A55

Portability
83
Imaging
82
Features
80
Overall
81
Sigma fp L front
 
Sony SLT-A55 front
Portability
67
Imaging
56
Features
80
Overall
65

Sigma fp L vs Sony A55 Key Specs

Sigma fp L
(Full Review)
  • 61MP - Full frame Sensor
  • 3.2" Fixed Screen
  • ISO 100 - 25600 (Boost to 102400)
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Leica L Mount
  • 427g - 113 x 70 x 45mm
  • Introduced March 2021
  • Succeeded the Sigma fp
Sony A55
(Full Review)
  • 16MP - APS-C Sensor
  • 3" Fully Articulated Display
  • ISO 100 - 12800 (Boost to 25600)
  • Sensor based Image Stabilization
  • 1920 x 1080 video
  • Sony/Minolta Alpha Mount
  • 500g - 124 x 92 x 85mm
  • Launched August 2010
  • Newer Model is Sony A57
Photography Glossary

Sigma fp L vs Sony A55 Overview

Here is a comprehensive comparison of the Sigma fp L versus Sony A55, former being a Advanced Mirrorless while the other is a Entry-Level DSLR by companies Sigma and Sony. There is a considerable difference among the sensor resolutions of the fp L (61MP) and A55 (16MP) and the fp L (Full frame) and A55 (APS-C) offer different sensor sizing.

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The fp L was announced 10 years later than the A55 and that is a fairly large difference as far as camera tech is concerned. Both the cameras have different body design with the Sigma fp L being a Rangefinder-style mirrorless camera and the Sony A55 being a Compact SLR camera.

Before delving straight to a in depth comparison, here is a short summation of how the fp L matches up against the A55 with respect to portability, imaging, features and an overall rating.

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Reasons to pick Sigma fp L over the Sony A55

 fp L A55 
LaunchedMarch 2021August 2010Fresher by 129 months
Display dimensions3.2"3"Larger display (+0.2")
Display resolution2100k921kSharper display (+1179k dot)
Touch display Easily navigate

Reasons to pick Sony A55 over the Sigma fp L

 A55 fp L 
Display typeFully ArticulatedFixed Fully Articulating display
Selfie screen Take selfies

Common features in the Sigma fp L and Sony A55

 fp L A55 
Manually focus More precise focus

Sigma fp L vs Sony A55 Physical Comparison

For those who are going to carry your camera often, you have to consider its weight and volume. The Sigma fp L features physical dimensions of 113mm x 70mm x 45mm (4.4" x 2.8" x 1.8") and a weight of 427 grams (0.94 lbs) whilst the Sony A55 has sizing of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") along with a weight of 500 grams (1.10 lbs).

Compare the Sigma fp L versus Sony A55 in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an ILC will change based on the lens you are utilising at that time. Below is a front view physical size comparison of the fp L against the A55.

Sigma fp L vs Sony A55 size comparison

Looking at size and weight, the portability rating of the fp L and A55 is 83 and 67 respectively.

Sigma fp L vs Sony A55 top view buttons comparison

Sigma fp L vs Sony A55 Sensor Comparison

Often, it is very tough to picture the difference in sensor sizing purely by researching technical specs. The photograph below might offer you a more clear sense of the sensor dimensions in the fp L and A55.

As you can tell, both of those cameras provide different megapixel count and different sensor sizing. The fp L with its larger sensor is going to make shooting shallow DOF less difficult and the Sigma fp L will render more detail with its extra 45MP. Greater resolution will also let you crop photos more aggressively. The more recent fp L provides an advantage with regard to sensor tech.

Sigma fp L vs Sony A55 sensor size comparison

Sigma fp L vs Sony A55 Screen and ViewFinder

Sigma fp L vs Sony A55 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Sigma fp L Portrait photography advice
Sony A55 Portrait photography advice
89
has manual focus
high megapixels (61 megapixels)
great sensor size (Full frame)
comes with face detection autofocus
saves RAW files
73
manual focus
MP count decent (16 megapixels)
sensor size is nice (APS-C)
has face detect focusing
saves RAW formats
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Street Comparison

Sigma fp L Street photography factors
Sony A55 Street photography factors
78
great sensor size (Full frame)
saves RAW files
offers focus by touch
environment proofing
very good ISO range (25,600)
fixed screen
lack of image stabilization
77
fully articulated screen
image stabilization (Sensor based)
sensor size is nice (APS-C)
saves RAW formats
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Sports Comparison

Sigma fp L as a Sports photography camera
Sony A55 as a Sports photography camera
78
max shutter speed is good (1/8,000s)
high megapixels (61 megapixels)
great sensor size (Full frame)
comes with tracking autofocus
environment proofing
sensor has phase detect autofocus
lack of image stabilization
not so great battery (240 CIPA)
68
image stabilization (Sensor based)
MP count decent (16MP)
sensor size is nice (APS-C)
comes with phase detect AF
bad battery (380 shots)
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Travel Comparison

Sigma fp L Travel photography information
Sony A55 Travel photography information
73
environment proofing
offers focus by touch
high megapixels (61MP)
not so great battery (240 shots)
doesn't have selfie friendly screen
62
MP count decent (16MP)
built-in flash
selfie friendly screen
does not have Timelapse function
bad battery (380 shots)
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Landscape Comparison

Sigma fp L Landscape photography features
Sony A55 Landscape photography features
81
has manual focus
change lenses (Leica L mount)
screen size is good (3.2 inches)
high megapixels (61 megapixels)
great sensor size (Full frame)
very good ISO range (25,600)
saves RAW files
environment proofing
lack of image stabilization
not so great battery (240 CIPA)
67
manual focus
swap lenses (Sony/Minolta Alpha mount)
pretty good screen size (3")
image stabilization (Sensor based)
MP count decent (16MP)
sensor size is nice (APS-C)
saves RAW formats
bad battery (380 per charge)
does not have Timelapse function
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Vlogging Comparison

Sigma fp L as a Vlogging camera
Sony A55 as a Vlogging camera
38
touchscreen functionality
comes with face detection autofocus
high quality video (3840 x 2160 pixels)
includes external mic port
doesn't have selfie friendly screen
lack of image stabilization
78
selfie friendly screen
image stabilization (Sensor based)
has face detect focusing
video resolution high (1920 x 1080 pixels)
does have microphone socket
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Sigma fp L vs Sony A55 Specifications

Detailed spec comparison table for Sigma fp L and Sony A55
 Sigma fp LSony SLT-A55
General Information
Brand Name Sigma Sony
Model type Sigma fp L Sony SLT-A55
Type Advanced Mirrorless Entry-Level DSLR
Introduced 2021-03-25 2010-08-24
Physical type Rangefinder-style mirrorless Compact SLR
Sensor Information
Processor Chip - Bionz
Sensor type BSI-CMOS CMOS
Sensor size Full frame APS-C
Sensor measurements 36 x 24mm 23.5 x 15.6mm
Sensor area 864.0mm² 366.6mm²
Sensor resolution 61MP 16MP
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2 and 16:9
Highest resolution 9520 x 6328 4912 x 3264
Highest native ISO 25600 12800
Highest boosted ISO 102400 25600
Lowest native ISO 100 100
RAW pictures
Lowest boosted ISO 6 -
Autofocusing
Manual focusing
AF touch
Continuous AF
Single AF
AF tracking
Selective AF
AF center weighted
AF multi area
AF live view
Face detection AF
Contract detection AF
Phase detection AF
Total focus points 49 15
Cross type focus points - 3
Lens
Lens support Leica L Sony/Minolta Alpha
Total lenses 40 143
Focal length multiplier 1 1.5
Screen
Type of screen Fixed Type Fully Articulated
Screen diagonal 3.2 inches 3 inches
Screen resolution 2,100 thousand dots 921 thousand dots
Selfie friendly
Liveview
Touch operation
Viewfinder Information
Viewfinder type Electronic (optional) Electronic
Viewfinder resolution 3,680 thousand dots 1,150 thousand dots
Viewfinder coverage 100% 100%
Viewfinder magnification 0.83x 0.73x
Features
Slowest shutter speed 30 secs 30 secs
Maximum shutter speed 1/8000 secs 1/4000 secs
Continuous shooting rate 10.0fps 10.0fps
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Change WB
Image stabilization
Built-in flash
Flash distance no built-in flash 10.00 m (@ ISO 100)
Flash options no built-in flash Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless
Hot shoe
AEB
White balance bracketing
Maximum flash synchronize - 1/160 secs
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported 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 1920 x 1080 (60, 29.97 fps), 1440 x 1080 (30fps), 640 x 424 (29.97 fps)
Highest video resolution 3840x2160 1920x1080
Video data format MPEG-4, H.264 MPEG-4, AVCHD, H.264
Microphone port
Headphone port
Connectivity
Wireless Built-In Eye-Fi Connected
Bluetooth
NFC
HDMI
USB Yes (USB Power Delivery supported) USB 2.0 (480 Mbit/sec)
GPS None BuiltIn
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 427g (0.94 lbs) 500g (1.10 lbs)
Physical dimensions 113 x 70 x 45mm (4.4" x 2.8" x 1.8") 124 x 92 x 85mm (4.9" x 3.6" x 3.3")
DXO scores
DXO All around rating not tested 73
DXO Color Depth rating not tested 23.0
DXO Dynamic range rating not tested 12.4
DXO Low light rating not tested 816
Other
Battery life 240 photographs 380 photographs
Style of battery Battery Pack Battery Pack
Battery ID BP-51 NP-FW50
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec)
Time lapse feature
Storage type SD/SDHC/SDXC (UHS-II supported) SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo
Card slots 1 1
Launch price $2,499 $800