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Pentax WG-3 vs Sony A77

Portability
90
Imaging
40
Features
44
Overall
41
Pentax WG-3 front
 
Sony SLT-A77 front
Portability
59
Imaging
63
Features
83
Overall
71

Pentax WG-3 vs Sony A77 Key Specs

Pentax WG-3
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3" Fixed Screen
  • ISO 125 - 6400
  • Sensor-shift Image Stabilization
  • 1920 x 1080 video
  • 25-100mm (F2.0-4.9) lens
  • 230g - 124 x 64 x 33mm
  • Introduced July 2013
Sony A77
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Fully Articulated Screen
  • ISO 50 - 16000 (Push to 25600)
  • Sensor based Image Stabilization
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Sony/Minolta Alpha Mount
  • 732g - 143 x 104 x 81mm
  • Announced October 2011
  • Superseded the Sony A700
  • Later Model is Sony A77 II
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Pentax WG-3 vs Sony A77 Overview

Its time to take a deeper look at the Pentax WG-3 versus Sony A77, former is a Waterproof while the latter is a Advanced DSLR by rivals Pentax and Sony. There is a substantial difference among the resolutions of the WG-3 (16MP) and A77 (24MP) and the WG-3 (1/2.3") and A77 (APS-C) enjoy different sensor size.

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The WG-3 was announced 22 months after the A77 which makes the cameras a generation away from each other. Both cameras offer different body type with the Pentax WG-3 being a Compact camera and the Sony A77 being a Mid-size SLR camera.

Before getting straight into a in-depth comparison, below is a brief summation of how the WG-3 scores vs the A77 with respect to portability, imaging, features and an overall score.

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Reasons to pick Pentax WG-3 over the Sony A77

 WG-3 A77 
AnnouncedJuly 2013October 2011More modern by 22 months

Reasons to pick Sony A77 over the Pentax WG-3

 A77 WG-3 
Screen typeFully ArticulatedFixed Fully Articulating screen
Screen resolution921k460kSharper screen (+461k dot)
Selfie screen Easy selfies

Common features in the Pentax WG-3 and Sony A77

 WG-3 A77 
Manually focus Very accurate focus
Screen sizing3"3"Equivalent screen size
Touch friendly screen Neither includes Touch friendly screen

Pentax WG-3 vs Sony A77 Physical Comparison

For those who are going to carry around your camera, you have to factor in its weight and size. The Pentax WG-3 features outside measurements of 124mm x 64mm x 33mm (4.9" x 2.5" x 1.3") along with a weight of 230 grams (0.51 lbs) while the Sony A77 has specifications of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") along with a weight of 732 grams (1.61 lbs).

Take a look at the Pentax WG-3 versus Sony A77 in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Don't forget, the weight of an ILC will differ depending on the lens you are working with at that time. Underneath is the front view dimension comparison of the WG-3 and the A77.

Pentax WG-3 vs Sony A77 size comparison

Using size and weight, the portability score of the WG-3 and A77 is 90 and 59 respectively.

Pentax WG-3 vs Sony A77 top view buttons comparison

Pentax WG-3 vs Sony A77 Sensor Comparison

Generally, its difficult to visualize the difference in sensor sizes only by checking out specs. The picture underneath should provide you a far better sense of the sensor measurements in the WG-3 and A77.

As you can plainly see, each of these cameras offer different megapixels and different sensor sizes. The WG-3 having a smaller sensor is going to make shooting shallow DOF more challenging and the Sony A77 will provide more detail with its extra 8 Megapixels. Higher resolution will also let you crop shots a little more aggressively. The more modern WG-3 provides a benefit with regard to sensor innovation.

Pentax WG-3 vs Sony A77 sensor size comparison

Pentax WG-3 vs Sony A77 Screen and ViewFinder

Pentax WG-3 vs Sony A77 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax WG-3 Portrait photography details
Sony A77 Portrait photography details
41
you can focus manually
good megapixels (16 megapixels)
supports face detect focus
no manual control
external flash not possible
very small sensor (1/2.3")
does not have RAW format
77
focusing manually
decent megapixels (24MP)
nice sensor size (APS-C)
offers face detection focus
saves RAW formats
Photography Glossary

Street Comparison

Pentax WG-3 Street photography information
Sony A77 Street photography information
61
image stabilization (Sensor-shift)
weather proof
fixed screen
very small sensor (1/2.3")
does not have RAW format
74
fully articulated screen
image stabilization (Sensor based)
nice sensor size (APS-C)
saves RAW formats
environment sealing
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Sports Comparison

Sports photography with Pentax WG-3
Sports photography with Sony A77
45
image stabilization (Sensor-shift)
good megapixels (16MP)
supports tracking focus
weather proof
lack of shutter priority mode
very small sensor (1/2.3")
not so great battery (240 per charge)
does not have phase detect auto focus
74
max shutter speed is good (1/8,000 seconds)
image stabilization (Sensor based)
decent megapixels (24 megapixels)
nice sensor size (APS-C)
environment sealing
sensor has phase detect auto focus
bad battery (470 shots)
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Travel Comparison

Pentax WG-3 Travel photography info
Sony A77 Travel photography info
72
weather proof
good megapixels (16MP)
flash built-in
quite wide (25mm)
fast maximum aperture (f2.0)
not so great battery (240 CIPA)
display is not selfie friendly
62
environment sealing
decent megapixels (24MP)
flash built-in
screen is selfie friendly
lack of Timelapse mode
bad battery (470 per charge)
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Landscape Comparison

Pentax WG-3 Landscape photography details
Sony A77 Landscape photography details
54
you can focus manually
quite wide (25mm)
fast maximum aperture (f2.0)
screen size is good (3 inch)
image stabilization (Sensor-shift)
good megapixels (16MP)
weather proof
can't swap lens (fixed lens mount)
no manual control
very small sensor (1/2.3")
does not have RAW format
not so great battery (240 per charge)
71
focusing manually
change lenses (Sony/Minolta Alpha mount)
screen size is good (3 inches)
image stabilization (Sensor based)
decent megapixels (24 megapixels)
nice sensor size (APS-C)
saves RAW formats
environment sealing
bad battery (470 shots)
lack of Timelapse mode
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Vlogging Comparison

Pentax WG-3 Vlogging factors
Sony A77 Vlogging factors
36
quite wide (25mm)
fast maximum aperture (f2.0)
image stabilization (Sensor-shift)
supports face detect focus
video res high (1920 x 1080 pxls)
display is not selfie friendly
missing microphone socket
76
screen is selfie friendly
image stabilization (Sensor based)
offers face detection focus
high quality video (1920 x 1080 pixels)
includes external microphone port
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Pentax WG-3 vs Sony A77 Specifications

Detailed spec comparison table for Pentax WG-3 and Sony A77
 Pentax WG-3Sony SLT-A77
General Information
Company Pentax Sony
Model type Pentax WG-3 Sony SLT-A77
Class Waterproof Advanced DSLR
Introduced 2013-07-19 2011-10-25
Body design Compact Mid-size SLR
Sensor Information
Powered by - Bionz
Sensor type BSI-CMOS CMOS
Sensor size 1/2.3" APS-C
Sensor measurements 6.17 x 4.55mm 23.5 x 15.6mm
Sensor area 28.1mm² 366.6mm²
Sensor resolution 16 megapixel 24 megapixel
Anti alias filter
Aspect ratio 1:1, 4:3 and 16:9 3:2 and 16:9
Full resolution 4608 x 3456 6000 x 4000
Max native ISO 6400 16000
Max boosted ISO - 25600
Min native ISO 125 50
RAW pictures
Autofocusing
Manual focusing
Autofocus touch
Continuous autofocus
Single autofocus
Autofocus tracking
Selective autofocus
Autofocus center weighted
Autofocus multi area
Autofocus live view
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Total focus points 9 19
Cross type focus points - 11
Lens
Lens support fixed lens Sony/Minolta Alpha
Lens zoom range 25-100mm (4.0x) -
Highest aperture f/2.0-4.9 -
Macro focusing distance 1cm -
Number of lenses - 143
Focal length multiplier 5.8 1.5
Screen
Range of screen Fixed Type Fully Articulated
Screen size 3" 3"
Resolution of screen 460k dot 921k dot
Selfie friendly
Liveview
Touch capability
Screen tech Widescreen TFT color LCD with anti-reflective coating -
Viewfinder Information
Viewfinder type None Electronic
Viewfinder resolution - 2,359k dot
Viewfinder coverage - 100 percent
Viewfinder magnification - 0.73x
Features
Slowest shutter speed 4s 30s
Maximum shutter speed 1/4000s 1/8000s
Continuous shooting speed 10.0fps 12.0fps
Shutter priority
Aperture priority
Expose Manually
Exposure compensation - Yes
Set white balance
Image stabilization
Inbuilt flash
Flash distance 3.40 m 12.00 m
Flash settings Auto, On, Off, Red-eye, Soft Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless
Hot shoe
Auto exposure bracketing
WB bracketing
Maximum flash sync - 1/250s
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions 1920 x 1080 (30 fps), 1280 x 720 (60, 30 fps) 1920 x 1080 (60, 24 fps), 1440 x 1080 (30fps), 640 x 424 (29.97 fps)
Max video resolution 1920x1080 1920x1080
Video file format MPEG-4, H.264 MPEG-4, AVCHD, H.264
Microphone jack
Headphone jack
Connectivity
Wireless Eye-Fi Connected Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None BuiltIn
Physical
Environmental seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 230 grams (0.51 lbs) 732 grams (1.61 lbs)
Dimensions 124 x 64 x 33mm (4.9" x 2.5" x 1.3") 143 x 104 x 81mm (5.6" x 4.1" x 3.2")
DXO scores
DXO All around rating not tested 78
DXO Color Depth rating not tested 24.0
DXO Dynamic range rating not tested 13.2
DXO Low light rating not tested 801
Other
Battery life 240 pictures 470 pictures
Battery form Battery Pack Battery Pack
Battery ID D-LI92 NP-FM500H
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec)
Time lapse recording
Storage media SD/SDHC/SDXC card, Internal SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo
Storage slots Single Single
Launch price $300 $900