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Pentax K-70 vs Sony G3

Portability
62
Imaging
66
Features
81
Overall
72
Pentax K-70 front
 
Sony Cyber-shot DSC-G3 front
Portability
94
Imaging
32
Features
30
Overall
31

Pentax K-70 vs Sony G3 Key Specs

Pentax K-70
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Fully Articulated Screen
  • ISO 100 - 102400
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/6000s Maximum Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 688g - 126 x 93 x 74mm
  • Introduced June 2016
  • Updated by Pentax KF
Sony G3
(Full Review)
  • 10MP - 1/2.3" Sensor
  • 3.5" Fixed Screen
  • ISO 80 - 3200
  • Optical Image Stabilization
  • 640 x 480 video
  • 35-140mm (F3.5-10.0) lens
  • 185g - 97 x 59 x 22mm
  • Launched January 2009
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Pentax K-70 vs Sony G3 Overview

Let's examine more closely at the Pentax K-70 versus Sony G3, one is a Entry-Level DSLR and the latter is a Small Sensor Compact by rivals Pentax and Sony. There is a significant difference between the resolutions of the K-70 (24MP) and G3 (10MP) and the K-70 (APS-C) and G3 (1/2.3") use totally different sensor size.

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The K-70 was released 7 years after the G3 which is quite a sizable gap as far as tech is concerned. Both of the cameras come with different body type with the Pentax K-70 being a Compact SLR camera and the Sony G3 being a Compact camera.

Before delving in to a in-depth comparison, below is a simple view of how the K-70 grades against the G3 in terms of portability, imaging, features and an overall mark.

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Reasons to pick Pentax K-70 over the Sony G3

 K-70 G3 
LaunchedJune 2016January 2009Newer by 91 months
Screen typeFully ArticulatedFixed Fully Articulating screen
Selfie screen Easy selfies

Reasons to pick Sony G3 over the Pentax K-70

 G3 K-70 
Screen dimension3.5"3"Bigger screen (+0.5")
Touch screen Quickly navigate

Common features in the Pentax K-70 and Sony G3

 K-70 G3 
Manually focus Dial precise focusing
Screen resolution921k921kEqual screen resolution

Pentax K-70 vs Sony G3 Physical Comparison

For anyone who is looking to travel with your camera, you'll need to take into account its weight and volume. The Pentax K-70 has got external measurements of 126mm x 93mm x 74mm (5.0" x 3.7" x 2.9") accompanied by a weight of 688 grams (1.52 lbs) whilst the Sony G3 has sizing of 97mm x 59mm x 22mm (3.8" x 2.3" x 0.9") along with a weight of 185 grams (0.41 lbs).

See the Pentax K-70 versus Sony G3 in the all new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an Interchangeable Lens Camera will change based on the lens you are working with at that time. Here is the front view dimensions comparison of the K-70 versus the G3.

Pentax K-70 vs Sony G3 size comparison

Looking at size and weight, the portability grade of the K-70 and G3 is 62 and 94 respectively.

Pentax K-70 vs Sony G3 top view buttons comparison

Pentax K-70 vs Sony G3 Sensor Comparison

Generally, it can be difficult to see the contrast between sensor dimensions only by reading through specifications. The pic here might give you a more clear sense of the sensor sizing in the K-70 and G3.

To sum up, both of these cameras posses different resolutions and different sensor dimensions. The K-70 featuring a bigger sensor will make shooting shallower depth of field less difficult and the Pentax K-70 will resolve more detail as a result of its extra 14 Megapixels. Higher resolution will let you crop shots somewhat more aggressively. The newer K-70 is going to have a benefit with regard to sensor technology.

Pentax K-70 vs Sony G3 sensor size comparison

Pentax K-70 vs Sony G3 Screen and ViewFinder

Pentax K-70 vs Sony G3 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-70 Portrait photography factors
Sony G3 Portrait photography factors
79
has manual focus
sensor resolution is decent (24 megapixels)
sensor size is nice (APS-C)
comes with face detection focus
supports RAW formats
25
has manual focus
manual exposure not possible
external flash not possible
sensor resolution not great (10 megapixels)
tiny sensor (1/2.3")
doesn't have RAW format
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Street Comparison

Street photography with Pentax K-70
Street photography with Sony G3
71
screen articulates fully
has image stabilization (Sensor based)
sensor size is nice (APS-C)
supports RAW formats
environment proofing
above average high ISO (102,400)
heavier than others in class (688g)
56
image stabilization (Optical)
fixed screen
tiny sensor (1/2.3")
doesn't have RAW format
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Sports Comparison

Pentax K-70 Sports photography advice
Sony G3 Sports photography advice
71
max shutter speed is good (1/6,000s)
has image stabilization (Sensor based)
sensor resolution is decent (24 megapixels)
sensor size is nice (APS-C)
comes with tracking autofocus
environment proofing
comes with phase detect auto focus
continuous shooting slow (6.0 fps)
low battery pack (410 CIPA)
23
image stabilization (Optical)
maximum shutter speed is a little low (1/1,000 seconds)
max fps low (2.0 frames per second)
lack of shutter priority mode
sensor resolution not great (10MP)
tiny sensor (1/2.3")
doesn't have phase detect autofocus
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Travel Comparison

Pentax K-70 Travel photography details
Sony G3 Travel photography details
64
environment proofing
sensor resolution is decent (24MP)
has built in flash
selfie friendly screen
low battery pack (410 shots)
heavier than others in class (688g)
50
flash built-in
does not have Timelapse mode
sensor resolution not great (10MP)
screen isn't selfie friendly
wide angle not great (35mm)
sluggish maximum aperture (f3.5)
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Landscape Comparison

Pentax K-70 Landscape photography highlights
Sony G3 Landscape photography highlights
78
has manual focus
change lenses (Pentax KAF2 mount)
screen size is good (3 inch)
has image stabilization (Sensor based)
sensor resolution is decent (24MP)
sensor size is nice (APS-C)
does not have anti-alias filter
above average high ISO (102,400)
supports RAW formats
environment proofing
low battery pack (410 shots)
35
has manual focus
big screen (3.5")
image stabilization (Optical)
lens is fixed (fixed lens mount)
wide angle not great (35mm)
sluggish maximum aperture (f3.5)
manual exposure not possible
sensor resolution not great (10 megapixels)
tiny sensor (1/2.3")
doesn't have RAW format
does not have Timelapse mode
Photography Glossary

Vlogging Comparison

Pentax K-70 as a Vlogging camera
Sony G3 as a Vlogging camera
71
selfie friendly screen
has image stabilization (Sensor based)
comes with face detection focus
high quality video (1920 x 1080 pixels)
does have external mic socket
heavier than others in class (688g)
27
touch screen
image stabilization (Optical)
wide angle not great (35mm)
sluggish maximum aperture (f3.5)
screen isn't selfie friendly
low quality video (640 x 480 pixels)
does not have microphone support
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Pentax K-70 vs Sony G3 Specifications

Detailed spec comparison table for Pentax K-70 and Sony G3
 Pentax K-70Sony Cyber-shot DSC-G3
General Information
Make Pentax Sony
Model Pentax K-70 Sony Cyber-shot DSC-G3
Class Entry-Level DSLR Small Sensor Compact
Introduced 2016-06-08 2009-01-08
Physical type Compact SLR Compact
Sensor Information
Processor Chip PRIME MII -
Sensor type CMOS CCD
Sensor size APS-C 1/2.3"
Sensor measurements 23.5 x 15.6mm 6.17 x 4.55mm
Sensor area 366.6mm² 28.1mm²
Sensor resolution 24 megapixel 10 megapixel
Anti aliasing filter
Aspect ratio 3:2 4:3, 3:2 and 16:9
Highest Possible resolution 6000 x 4000 3648 x 2736
Maximum native ISO 102400 3200
Minimum native ISO 100 80
RAW images
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 11 9
Cross focus points 9 -
Lens
Lens mount Pentax KAF2 fixed lens
Lens focal range - 35-140mm (4.0x)
Largest aperture - f/3.5-10.0
Total lenses 151 -
Focal length multiplier 1.5 5.8
Screen
Type of screen Fully Articulated Fixed Type
Screen sizing 3 inch 3.5 inch
Resolution of screen 921k dots 921k dots
Selfie friendly
Liveview
Touch function
Viewfinder Information
Viewfinder Optical (pentaprism) None
Viewfinder coverage 100 percent -
Viewfinder magnification 0.63x -
Features
Minimum shutter speed 30 secs 1 secs
Fastest shutter speed 1/6000 secs 1/1000 secs
Continuous shutter rate 6.0 frames/s 2.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes -
Set WB
Image stabilization
Inbuilt flash
Flash range 12.00 m (at ISO 100) 4.30 m (Auto ISO)
Flash modes Auto, auto w/redeye reduction, flash on, flash + redeye reduction, slow sync, trailing curtain sync, manual Auto, On, Off, Red-Eye reduction, Slow Sync
Hot shoe
AEB
WB bracketing
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p) 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps)
Maximum video resolution 1920x1080 640x480
Video data format MPEG-4, H.264 Motion JPEG
Microphone support
Headphone support
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional None
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 688 gr (1.52 lb) 185 gr (0.41 lb)
Dimensions 126 x 93 x 74mm (5.0" x 3.7" x 2.9") 97 x 59 x 22mm (3.8" x 2.3" x 0.9")
DXO scores
DXO Overall score not tested not tested
DXO Color Depth score not tested not tested
DXO Dynamic range score not tested not tested
DXO Low light score not tested not tested
Other
Battery life 410 photos -
Battery style Battery Pack -
Self timer Yes (2 or 12 secs, continuous) Yes (2 or 10 sec)
Time lapse recording
Storage type SD/SDHC/SDXC (UHS-I compatible) Memory Stick Duo/Pro Duo, Internal
Card slots 1 1
Launch cost $649 $200