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Sigma DP3 Merrill vs Sony A55

Portability
83
Imaging
57
Features
33
Overall
47
Sigma DP3 Merrill front
 
Sony SLT-A55 front
Portability
67
Imaging
56
Features
80
Overall
65

Sigma DP3 Merrill vs Sony A55 Key Specs

Sigma DP3 Merrill
(Full Review)
  • 15MP - APS-C Sensor
  • 3" Fixed Display
  • ISO 100 - 6400
  • 640 x 480 video
  • 75mm (F2.8) lens
  • 330g - 122 x 67 x 59mm
  • Announced January 2013
  • Earlier Model is Sigma DP2 Merrill
Sony A55
(Full Review)
  • 16MP - APS-C Sensor
  • 3" Fully Articulated Screen
  • ISO 100 - 12800 (Bump to 25600)
  • Sensor based Image Stabilization
  • 1920 x 1080 video
  • Sony/Minolta Alpha Mount
  • 500g - 124 x 92 x 85mm
  • Released August 2010
  • Successor is Sony A57
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Sigma DP3 Merrill vs Sony A55 Overview

Following is a complete comparison of the Sigma DP3 Merrill and Sony A55, one is a Large Sensor Compact and the latter is a Entry-Level DSLR by manufacturers Sigma and Sony. The image resolution of the DP3 Merrill (15MP) and the A55 (16MP) is relatively comparable and both cameras boast the identical sensor size (APS-C).

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The DP3 Merrill was brought out 2 years after the A55 which is a fairly sizable gap as far as camera technology is concerned. Both of the cameras feature different body design with the Sigma DP3 Merrill being a Large Sensor Compact camera and the Sony A55 being a Compact SLR camera.

Before going straight to a complete comparison, here is a brief introduction of how the DP3 Merrill grades against the A55 with regards to portability, imaging, features and an overall score.

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Reasons to pick Sigma DP3 Merrill over the Sony A55

 DP3 Merrill A55 
ReleasedJanuary 2013August 2010More modern by 29 months

Reasons to pick Sony A55 over the Sigma DP3 Merrill

 A55 DP3 Merrill 
Screen typeFully ArticulatedFixed Fully Articulating screen
Screen resolution921k920kSharper screen (+1k dot)
Selfie screen Take selfies

Common features in the Sigma DP3 Merrill and Sony A55

 DP3 Merrill A55 
Manually focus More exact focusing
Screen size3"3"Same screen size
Touch friendly screen Neither has Touch friendly screen

Sigma DP3 Merrill vs Sony A55 Physical Comparison

If you're intending to carry around your camera, you should think about its weight and measurements. The Sigma DP3 Merrill has outer dimensions of 122mm x 67mm x 59mm (4.8" x 2.6" x 2.3") having a weight of 330 grams (0.73 lbs) whilst the Sony A55 has proportions of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") accompanied by a weight of 500 grams (1.10 lbs).

Analyze the Sigma DP3 Merrill and Sony A55 in the new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an Interchangeable Lens Camera will differ depending on the lens you are utilizing at that time. Here is a front view measurement comparison of the DP3 Merrill vs the A55.

Sigma DP3 Merrill vs Sony A55 size comparison

Factoring in dimensions and weight, the portability score of the DP3 Merrill and A55 is 83 and 67 respectively.

Sigma DP3 Merrill vs Sony A55 top view buttons comparison

Sigma DP3 Merrill vs Sony A55 Sensor Comparison

Typically, it is tough to picture the difference in sensor sizes purely by going through specs. The image underneath might give you a more clear sense of the sensor sizes in the DP3 Merrill and A55.

All in all, the 2 cameras come with the identical sensor size albeit different MP. You should count on the Sony A55 to produce extra detail having its extra 1 Megapixels. Higher resolution will also make it easier to crop photographs a good deal more aggressively. The younger DP3 Merrill should have a benefit when it comes to sensor innovation.

Sigma DP3 Merrill vs Sony A55 sensor size comparison

Sigma DP3 Merrill vs Sony A55 Screen and ViewFinder

Sigma DP3 Merrill vs Sony A55 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Sigma DP3 Merrill Portrait photography details
Sony A55 Portrait photography details
74
focusing manually
decent MP (15 megapixels)
good sensor size (APS-C)
supports RAW formats
73
focusing manually
good megapixels (16 megapixels)
good sensor size (APS-C)
includes face detection focusing
delivers RAW formats
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Street Comparison

Sigma DP3 Merrill Street photography info
Sony A55 Street photography info
65
good sensor size (APS-C)
supports RAW formats
fixed screen
does not have image stabilization
77
screen articulates
has image stabilization (Sensor based)
good sensor size (APS-C)
delivers RAW formats
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Sports Comparison

Sigma DP3 Merrill Sports photography highlights
Sony A55 Sports photography highlights
45
decent MP (15MP)
good sensor size (APS-C)
focal length is fixed (75mm)
slow fps (4.0 frames per second)
does not have image stabilization
no phase detect AF
68
has image stabilization (Sensor based)
good megapixels (16 megapixels)
good sensor size (APS-C)
has phase detect AF
bad battery life (380 per charge)
Photography Glossary

Travel Comparison

Sigma DP3 Merrill Travel photography highlights
Sony A55 Travel photography highlights
54
decent MP (15MP)
missing Time Lapse function
does not offer selfie friendly screen
slow maximum aperture (f2.8)
62
good megapixels (16 megapixels)
has built in flash
screen is selfie friendly
lack of Timelapse recording
bad battery life (380 per charge)
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Landscape Comparison

Sigma DP3 Merrill Landscape photography factors
Sony A55 Landscape photography factors
56
focusing manually
decent sized screen (3 inch)
decent MP (15MP)
good sensor size (APS-C)
supports RAW formats
lens is fixed (fixed lens mount)
focal length is fixed (75mm)
slow maximum aperture (f2.8)
does not have image stabilization
missing Time Lapse function
67
focusing manually
interchangeable lenses (Sony/Minolta Alpha mount)
screen size is good (3 inches)
has image stabilization (Sensor based)
good megapixels (16 megapixels)
good sensor size (APS-C)
delivers RAW formats
bad battery life (380 per charge)
lack of Timelapse recording
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Vlogging Comparison

Sigma DP3 Merrill Vlogging features
Sony A55 Vlogging features
22
slow maximum aperture (f2.8)
does not offer selfie friendly screen
does not have image stabilization
video res low (640 x 480 resolution)
missing mic socket
78
screen is selfie friendly
has image stabilization (Sensor based)
includes face detection focusing
video res high (1920 x 1080 resolution)
has external microphone socket
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Sigma DP3 Merrill vs Sony A55 Specifications

Detailed spec comparison table for Sigma DP3 Merrill and Sony A55
 Sigma DP3 MerrillSony SLT-A55
General Information
Brand Sigma Sony
Model type Sigma DP3 Merrill Sony SLT-A55
Type Large Sensor Compact Entry-Level DSLR
Announced 2013-01-08 2010-08-24
Physical type Large Sensor Compact Compact SLR
Sensor Information
Chip Dual TRUE II engine Bionz
Sensor type CMOS (Foveon X3) CMOS
Sensor size APS-C APS-C
Sensor measurements 24 x 16mm 23.5 x 15.6mm
Sensor area 384.0mm² 366.6mm²
Sensor resolution 15 megapixels 16 megapixels
Anti alias filter
Aspect ratio - 3:2 and 16:9
Peak resolution 4704 x 3136 4912 x 3264
Highest native ISO 6400 12800
Highest enhanced ISO - 25600
Lowest native ISO 100 100
RAW format
Autofocusing
Manual focusing
Touch focus
Continuous autofocus
Single autofocus
Tracking autofocus
Autofocus selectice
Center weighted autofocus
Autofocus multi area
Live view autofocus
Face detect focus
Contract detect focus
Phase detect focus
Total focus points - 15
Cross type focus points - 3
Lens
Lens mount type fixed lens Sony/Minolta Alpha
Lens zoom range 75mm (1x) -
Max aperture f/2.8 -
Amount of lenses - 143
Crop factor 1.5 1.5
Screen
Type of display Fixed Type Fully Articulated
Display sizing 3 inches 3 inches
Display resolution 920k dots 921k dots
Selfie friendly
Liveview
Touch capability
Viewfinder Information
Viewfinder None Electronic
Viewfinder resolution - 1,150k dots
Viewfinder coverage - 100 percent
Viewfinder magnification - 0.73x
Features
Minimum shutter speed - 30 secs
Fastest shutter speed - 1/4000 secs
Continuous shutter rate 4.0 frames per second 10.0 frames per second
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 settings no built-in flash Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless
External flash
AE bracketing
White balance bracketing
Fastest flash synchronize - 1/160 secs
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 640 x 480 1920 x 1080 (60, 29.97 fps), 1440 x 1080 (30fps), 640 x 424 (29.97 fps)
Highest video resolution 640x480 1920x1080
Video file format Motion JPEG MPEG-4, AVCHD, H.264
Microphone port
Headphone port
Connectivity
Wireless None Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None BuiltIn
Physical
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 330g (0.73 lb) 500g (1.10 lb)
Physical dimensions 122 x 67 x 59mm (4.8" x 2.6" x 2.3") 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
Form of battery - Battery Pack
Battery ID - NP-FW50
Self timer - Yes (2 or 10 sec)
Time lapse recording
Storage type - SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo
Card slots Single Single
Pricing at release $1,353 $800