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Sigma fp vs Sony A55

Portability
84
Imaging
76
Features
79
Overall
77
Sigma fp front
 
Sony SLT-A55 front
Portability
67
Imaging
56
Features
80
Overall
65

Sigma fp vs Sony A55 Key Specs

Sigma fp
(Full Review)
  • 25MP - Full frame Sensor
  • 3.2" Fixed Display
  • ISO 100 - 25600 (Boost to 102400)
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Leica L Mount
  • 422g - 113 x 70 x 45mm
  • Released July 2019
  • Newer Model is Sigma fp L
Sony A55
(Full Review)
  • 16MP - APS-C Sensor
  • 3" Fully Articulated Display
  • ISO 100 - 12800 (Increase to 25600)
  • Sensor based Image Stabilization
  • 1920 x 1080 video
  • Sony/Minolta Alpha Mount
  • 500g - 124 x 92 x 85mm
  • Revealed August 2010
  • Updated by Sony A57
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Sigma fp vs Sony A55 Overview

Lets take a more detailed look at the Sigma fp and Sony A55, one being a Advanced Mirrorless and the other is a Entry-Level DSLR by companies Sigma and Sony. There is a big difference between the sensor resolutions of the fp (25MP) and A55 (16MP) and the fp (Full frame) and A55 (APS-C) come with totally different sensor dimensions.

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The fp was brought out 9 years later than the A55 and that is quite a big gap as far as tech is concerned. Each of these cameras come with different body type with the Sigma fp being a Rangefinder-style mirrorless camera and the Sony A55 being a Compact SLR camera.

Before delving straight into a thorough comparison, below is a concise summation of how the fp scores against the A55 in regards to portability, imaging, features and an overall grade.

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Reasons to pick Sigma fp over the Sony A55

 fp A55 
RevealedJuly 2019August 2010More recent by 109 months
Display dimension3.2"3"Larger display (+0.2")
Display resolution2100k921kCrisper display (+1179k dot)
Touch friendly display Easily navigate

Reasons to pick Sony A55 over the Sigma fp

 A55 fp 
Display typeFully ArticulatedFixed Fully Articulating display
Selfie screen Easy selfies

Common features in the Sigma fp and Sony A55

 fp A55 
Manual focus Dial exact focusing

Sigma fp vs Sony A55 Physical Comparison

For those who are looking to lug around your camera frequently, you will want to consider its weight and size. The Sigma fp provides outside dimensions of 113mm x 70mm x 45mm (4.4" x 2.8" x 1.8") along with a weight of 422 grams (0.93 lbs) and the Sony A55 has specifications of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") accompanied by a weight of 500 grams (1.10 lbs).

Compare the Sigma fp and Sony A55 in the all new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an Interchangeable Lens Camera will change based on the lens you are utilizing during that time. Following is the front view dimension comparison of the fp vs the A55.

Sigma fp vs Sony A55 size comparison

Taking into consideration size and weight, the portability grade of the fp and A55 is 84 and 67 respectively.

Sigma fp vs Sony A55 top view buttons comparison

Sigma fp vs Sony A55 Sensor Comparison

Often, its tough to envision the difference between sensor measurements only by reading through a spec sheet. The graphic here will help offer you a stronger sense of the sensor sizes in the fp and A55.

Clearly, the 2 cameras posses different megapixel count and different sensor measurements. The fp featuring a larger sensor will make shooting bokeh less difficult and the Sigma fp will resolve extra detail having its extra 9 Megapixels. Greater resolution will help you crop pics somewhat more aggressively. The more recent fp will have an edge with regard to sensor innovation.

Sigma fp vs Sony A55 sensor size comparison

Sigma fp vs Sony A55 Screen and ViewFinder

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

Portrait Comparison

Sigma fp as a Portrait photography camera
Sony A55 as a Portrait photography camera
85
has manual focus
fantastic MP (25 megapixels)
big sensor size (Full frame)
features face detect focus
delivers RAW formats
73
focusing manually
good megapixels (16 megapixels)
nice sensor size (APS-C)
supports face detect autofocus
supports RAW formats
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Street Comparison

Sigma fp Street photography details
Sony A55 Street photography details
77
big sensor size (Full frame)
delivers RAW formats
offers focus via touch
environment proof
very good high ISO (25,600)
no moving screen
no image stabilization
77
screen can move to multiple angles
image stabilization (Sensor based)
nice sensor size (APS-C)
supports RAW formats
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Sports Comparison

Sigma fp Sports photography highlights
Sony A55 Sports photography highlights
73
high shutter speed (1/8,000s)
fantastic MP (25MP)
big sensor size (Full frame)
features tracking focus
environment proof
no image stabilization
lack of phase detect auto focus
68
image stabilization (Sensor based)
good megapixels (16MP)
nice sensor size (APS-C)
supports phase detect autofocus
low battery pack (380 shots)
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Travel Comparison

Travel photography with Sigma fp
Travel photography with Sony A55
78
environment proof
offers focus via touch
fantastic MP (25MP)
does not feature selfie friendly display
62
good megapixels (16 megapixels)
flash built-in
selfie friendly display
doesn't have Time Lapse recording
low battery pack (380 per charge)
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Landscape Comparison

Sigma fp Landscape photography highlights
Sony A55 Landscape photography highlights
83
has manual focus
switch lenses (Leica L mount)
screen size is good (3.2 inch)
fantastic MP (25 megapixels)
big sensor size (Full frame)
very good high ISO (25,600)
delivers RAW formats
environment proof
no image stabilization
67
focusing manually
switch lenses (Sony/Minolta Alpha mount)
screen size is good (3 inches)
image stabilization (Sensor based)
good megapixels (16 megapixels)
nice sensor size (APS-C)
supports RAW formats
low battery pack (380 CIPA)
doesn't have Time Lapse recording
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Vlogging Comparison

Sigma fp as a Vlogging camera
Sony A55 as a Vlogging camera
37
touchscreen functionality
features face detect focus
video res high (3840 x 2160 pxls)
includes microphone port
does not feature selfie friendly display
no image stabilization
78
selfie friendly display
image stabilization (Sensor based)
supports face detect autofocus
high res video (1920 x 1080 pixels)
comes with mic support
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Sigma fp vs Sony A55 Specifications

Detailed spec comparison table for Sigma fp and Sony A55
 Sigma fpSony SLT-A55
General Information
Make Sigma Sony
Model type Sigma fp Sony SLT-A55
Type Advanced Mirrorless Entry-Level DSLR
Released 2019-07-11 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 dimensions 35.9 x 23.9mm 23.5 x 15.6mm
Sensor area 858.0mm² 366.6mm²
Sensor resolution 25MP 16MP
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2 and 16:9
Highest Possible resolution 6000 x 4000 4912 x 3264
Maximum native ISO 25600 12800
Maximum enhanced ISO 102400 25600
Lowest native ISO 100 100
RAW pictures
Lowest enhanced ISO 6 -
Autofocusing
Focus manually
Touch focus
Autofocus continuous
Single autofocus
Tracking autofocus
Selective autofocus
Autofocus center weighted
Multi area autofocus
Autofocus live view
Face detect autofocus
Contract detect autofocus
Phase detect autofocus
Total focus points 49 15
Cross type focus points - 3
Lens
Lens support Leica L Sony/Minolta Alpha
Total lenses 30 143
Crop factor 1 1.5
Screen
Display type Fixed Type Fully Articulated
Display sizing 3.2 inches 3 inches
Display resolution 2,100k dots 921k dots
Selfie friendly
Liveview
Touch functionality
Viewfinder Information
Viewfinder None Electronic
Viewfinder resolution - 1,150k dots
Viewfinder coverage - 100 percent
Viewfinder magnification - 0.73x
Features
Min shutter speed 30 secs 30 secs
Max shutter speed 1/8000 secs 1/4000 secs
Continuous shutter rate 12.0 frames per sec 10.0 frames per sec
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change white balance
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
Auto exposure bracketing
White balance bracketing
Max flash synchronize - 1/160 secs
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 3840 x 2160 @ 30p, MOV, H.264, Linear PCM 1920 x 1080 (60, 29.97 fps), 1440 x 1080 (30fps), 640 x 424 (29.97 fps)
Maximum video resolution 3840x2160 1920x1080
Video data format MPEG-4, H.264 MPEG-4, AVCHD, H.264
Mic support
Headphone support
Connectivity
Wireless No Eye-Fi Connected
Bluetooth
NFC
HDMI
USB Yes USB 2.0 (480 Mbit/sec)
GPS None BuiltIn
Physical
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 422 gr (0.93 lbs) 500 gr (1.10 lbs)
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 Overall 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 - 380 pictures
Battery style - Battery Pack
Battery ID BP-51 NP-FW50
Self timer Yes (2 or 10 wec) Yes (2 or 10 sec)
Time lapse shooting
Type of storage SD/SDHC/SDXC (UHS-II supported) SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo
Card slots One One
Price at release $2,050 $800