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Panasonic G2 vs Pentax K20D

Portability
72
Imaging
48
Features
60
Overall
52
Panasonic Lumix DMC-G2 front
 
Pentax K20D front
Portability
59
Imaging
54
Features
52
Overall
53

Panasonic G2 vs Pentax K20D Key Specs

Panasonic G2
(Full Review)
  • 12MP - Four Thirds Sensor
  • 3" Fully Articulated Screen
  • ISO 100 - 6400
  • 1280 x 720 video
  • Micro Four Thirds Mount
  • 428g - 124 x 84 x 74mm
  • Announced July 2010
  • Succeeded the Panasonic G1
  • New Model is Panasonic G3
Pentax K20D
(Full Review)
  • 15MP - APS-C Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 3200 (Raise to 6400)
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 800g - 142 x 101 x 70mm
  • Revealed June 2008
  • Previous Model is Pentax K10D
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Panasonic G2 vs Pentax K20D Overview

Below, we will be evaluating the Panasonic G2 and Pentax K20D, former is a Entry-Level Mirrorless while the latter is a Advanced DSLR by competitors Panasonic and Pentax. The sensor resolution of the G2 (12MP) and the K20D (15MP) is pretty comparable but the G2 (Four Thirds) and K20D (APS-C) come with totally different sensor size.

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The G2 was released 2 years after the K20D which is a fairly sizable difference as far as camera tech is concerned. The two cameras come with different body type with the Panasonic G2 being a SLR-style mirrorless camera and the Pentax K20D being a Mid-size SLR camera.

Before we go in to a in depth comparison, below is a brief highlight of how the G2 matches up against the K20D when considering portability, imaging, features and an overall mark.

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Reasons to pick Panasonic G2 over the Pentax K20D

 G2 K20D 
RevealedJuly 2010June 2008Newer by 25 months
Screen typeFully ArticulatedFixed Fully Articulating screen
Screen dimension3"2.7"Bigger screen (+0.3")
Screen resolution460k230kCrisper screen (+230k dot)
Selfie screen Easy selfies
Touch screen Quickly navigate

Reasons to pick Pentax K20D over the Panasonic G2

 K20D G2 

Common features in the Panasonic G2 and Pentax K20D

 G2 K20D 
Focus manually More accurate focusing

Panasonic G2 vs Pentax K20D Physical Comparison

If you're intending to travel with your camera, you are going to need to factor its weight and measurements. The Panasonic G2 offers physical measurements of 124mm x 84mm x 74mm (4.9" x 3.3" x 2.9") and a weight of 428 grams (0.94 lbs) whilst the Pentax K20D has proportions of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") with a weight of 800 grams (1.76 lbs).

Check out the Panasonic G2 and Pentax K20D in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an ILC will vary dependant on the lens you are using at that moment. Below is the front view dimension comparison of the G2 vs the K20D.

Panasonic G2 vs Pentax K20D size comparison

Considering size and weight, the portability score of the G2 and K20D is 72 and 59 respectively.

Panasonic G2 vs Pentax K20D top view buttons comparison

Panasonic G2 vs Pentax K20D Sensor Comparison

Generally, it is very hard to envision the gap in sensor dimensions purely by going through technical specs. The pic here may offer you a stronger sense of the sensor measurements in the G2 and K20D.

As you can tell, each of the cameras posses different megapixel count and different sensor dimensions. The G2 due to its smaller sensor will make shooting shallow DOF more challenging and the Pentax K20D will produce greater detail as a result of its extra 3 Megapixels. Higher resolution will also help you crop pictures somewhat more aggressively. The younger G2 will have an edge in sensor innovation.

Panasonic G2 vs Pentax K20D sensor size comparison

Panasonic G2 vs Pentax K20D Screen and ViewFinder

Panasonic G2 vs Pentax K20D Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Panasonic G2
Portrait photography with Pentax K20D
60
you can focus manually
good sensor size (Four Thirds)
has face detect focus
saves RAW formats
sensor resolution low (12 megapixels)
72
has manual focus
decent MP (15MP)
sensor size is good (APS-C)
delivers RAW files
Photography Glossary

Street Comparison

Panasonic G2 Street photography highlights
Pentax K20D Street photography highlights
65
screen can move to multiple angles
good sensor size (Four Thirds)
saves RAW formats
has touch focus
no image stabilization
heavier than competitors (428 grams)
65
has image stabilization (Sensor based)
sensor size is good (APS-C)
delivers RAW files
weather proofing
no articulating screen
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Sports Comparison

Panasonic G2 Sports photography factors
Pentax K20D Sports photography factors
40
good sensor size (Four Thirds)
has tracking focus
max fps very slow (3.0 frames/s)
no image stabilization
sensor resolution low (12 megapixels)
doesn't have phase detect auto focus
68
has image stabilization (Sensor based)
decent MP (15MP)
sensor size is good (APS-C)
weather proofing
has phase detect auto focus
slow fps (3.0 frames per second)
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Travel Comparison

Panasonic G2 as a Travel photography camera
Pentax K20D as a Travel photography camera
58
has touch focus
built-in flash
selfie friendly screen
does not have Time Lapse function
heavier than competitors (428g)
sensor resolution low (12MP)
64
weather proofing
decent MP (15 megapixels)
has built in flash
screen isn't selfie friendly
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Landscape Comparison

Panasonic G2 Landscape photography advice
Pentax K20D Landscape photography advice
57
you can focus manually
interchangeable lenses (Micro Four Thirds mount)
screen size is good (3 inch)
good sensor size (Four Thirds)
saves RAW formats
no image stabilization
sensor resolution low (12 megapixels)
does not have Time Lapse function
71
has manual focus
swap lenses (Pentax KAF2 mount)
has image stabilization (Sensor based)
decent MP (15 megapixels)
sensor size is good (APS-C)
delivers RAW files
weather proofing
small screen (2.7 inch)
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Vlogging Comparison

Panasonic G2 Vlogging info
Pentax K20D Vlogging info
61
selfie friendly screen
touch screen
has face detect focus
has mic jack
no image stabilization
video quality not great (1280 x 720 resolution)
heavier than competitors (428g)
9
can't record video
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Panasonic G2 vs Pentax K20D Specifications

Detailed spec comparison table for Panasonic G2 and Pentax K20D
 Panasonic Lumix DMC-G2Pentax K20D
General Information
Company Panasonic Pentax
Model Panasonic Lumix DMC-G2 Pentax K20D
Type Entry-Level Mirrorless Advanced DSLR
Announced 2010-07-12 2008-06-25
Physical type SLR-style mirrorless Mid-size SLR
Sensor Information
Powered by Venus Engine HD II -
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor dimensions 17.3 x 13mm 23.4 x 15.6mm
Sensor surface area 224.9mm² 365.0mm²
Sensor resolution 12 megapixel 15 megapixel
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Max resolution 4000 x 3000 4672 x 3104
Max native ISO 6400 3200
Max enhanced ISO - 6400
Min native ISO 100 100
RAW pictures
Autofocusing
Focus manually
Touch to focus
Continuous autofocus
Autofocus single
Autofocus tracking
Selective autofocus
Autofocus center weighted
Autofocus multi area
Autofocus live view
Face detection focus
Contract detection focus
Phase detection focus
Number of focus points - 11
Lens
Lens mounting type Micro Four Thirds Pentax KAF2
Number of lenses 107 151
Crop factor 2.1 1.5
Screen
Screen type Fully Articulated Fixed Type
Screen sizing 3 inch 2.7 inch
Resolution of screen 460 thousand dots 230 thousand dots
Selfie friendly
Liveview
Touch friendly
Screen technology TFT Color LCD with wide-viewing angle -
Viewfinder Information
Viewfinder type Electronic Optical (pentaprism)
Viewfinder resolution 1,440 thousand dots -
Viewfinder coverage 100% 95%
Viewfinder magnification 0.55x 0.64x
Features
Minimum shutter speed 60 secs 30 secs
Fastest shutter speed 1/4000 secs 1/4000 secs
Continuous shutter rate 3.0 frames/s 3.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Inbuilt flash
Flash range 11.00 m 13.00 m (at ISO 100)
Flash modes Auto, On, Off, Red-Eye, Slow Sync Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless
External flash
AE bracketing
White balance bracketing
Fastest flash synchronize 1/160 secs 1/180 secs
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 1280 x 720 (30 fps), 848 x 480 (30 fps), 640 x 480 (30 fps), 320 x 240 (30 fps) -
Max video resolution 1280x720 None
Video file format AVCHD Lite, Motion JPEG -
Mic support
Headphone support
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 428 gr (0.94 lb) 800 gr (1.76 lb)
Dimensions 124 x 84 x 74mm (4.9" x 3.3" x 2.9") 142 x 101 x 70mm (5.6" x 4.0" x 2.8")
DXO scores
DXO Overall score 53 65
DXO Color Depth score 21.2 22.9
DXO Dynamic range score 10.3 11.1
DXO Low light score 493 639
Other
Battery life 360 images -
Style of battery Battery Pack -
Battery model - D-LI50
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec)
Time lapse shooting
Storage type SD/SDHC/SDXC SD/MMC/SDHC card
Card slots 1 1
Launch pricing $1,000 $700