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Panasonic GX1 vs Pentax K20D

Portability
87
Imaging
52
Features
54
Overall
52
Panasonic Lumix DMC-GX1 front
 
Pentax K20D front
Portability
59
Imaging
53
Features
52
Overall
52

Panasonic GX1 vs Pentax K20D Key Specs

Panasonic GX1
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Fixed Display
  • ISO 160 - 12800
  • 1920 x 1080 video
  • Micro Four Thirds Mount
  • 318g - 116 x 68 x 39mm
  • Released February 2012
  • Refreshed by Panasonic GX7
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
  • Launched June 2008
  • Superseded the Pentax K10D
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Panasonic GX1 vs Pentax K20D Overview

The following is a in-depth overview of the Panasonic GX1 and Pentax K20D, former is a Entry-Level Mirrorless while the latter is a Advanced DSLR by brands Panasonic and Pentax. The sensor resolution of the GX1 (16MP) and the K20D (15MP) is relatively close but the GX1 (Four Thirds) and K20D (APS-C) offer totally different sensor dimensions.

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The GX1 was introduced 3 years after the K20D which is a fairly big difference as far as camera technology is concerned. Both the cameras feature different body design with the Panasonic GX1 being a Rangefinder-style mirrorless camera and the Pentax K20D being a Mid-size SLR camera.

Before going straight to a comprehensive comparison, here is a simple summation of how the GX1 grades versus the K20D in relation to portability, imaging, features and an overall mark.

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Reasons to pick Panasonic GX1 over the Pentax K20D

 GX1 K20D 
LaunchedFebruary 2012June 2008Newer by 45 months
Screen size3"2.7"Bigger screen (+0.3")
Screen resolution460k230kCrisper screen (+230k dot)
Touch friendly screen Quickly navigate

Reasons to pick Pentax K20D over the Panasonic GX1

 K20D GX1 

Common features in the Panasonic GX1 and Pentax K20D

 GX1 K20D 
Manually focus Dial exact focus
Screen typeFixed Fixed Fixed screen
Selfie screen Lacking selfie screen

Panasonic GX1 vs Pentax K20D Physical Comparison

For anyone who is intending to travel with your camera regularly, you'll need to consider its weight and proportions. The Panasonic GX1 features external dimensions of 116mm x 68mm x 39mm (4.6" x 2.7" x 1.5") with a weight of 318 grams (0.70 lbs) while the Pentax K20D has measurements of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") having a weight of 800 grams (1.76 lbs).

Look at the Panasonic GX1 and Pentax K20D in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an ILC will differ dependant on the lens you are working with during that time. Following is a front view size comparison of the GX1 and the K20D.

Panasonic GX1 vs Pentax K20D size comparison

Looking at dimensions and weight, the portability rating of the GX1 and K20D is 87 and 59 respectively.

Panasonic GX1 vs Pentax K20D top view buttons comparison

Panasonic GX1 vs Pentax K20D Sensor Comparison

More often than not, it is very difficult to envision the difference in sensor dimensions only by looking through a spec sheet. The image below will give you a greater sense of the sensor dimensions in the GX1 and K20D.

Clearly, each of these cameras come with different megapixels and different sensor dimensions. The GX1 using its smaller sensor will make shooting shallow DOF more challenging and the Panasonic GX1 will result in extra detail using its extra 1 Megapixels. Higher resolution can also let you crop photographs a good deal more aggressively. The younger GX1 is going to have an edge when it comes to sensor tech.

Panasonic GX1 vs Pentax K20D sensor size comparison

Panasonic GX1 vs Pentax K20D Screen and ViewFinder

Panasonic GX1 vs Pentax K20D Screen and Viewfinder comparison
Photography Glossary

Photography Type Scores

Portrait Comparison

Panasonic GX1 Portrait photography details
Pentax K20D Portrait photography details
71
has manual focus
megapixel count decent (16MP)
sensor size is good (Four Thirds)
offers face detection focusing
saves RAW files
71
manual focus
resolution is good (15 megapixels)
sensor size is decent (APS-C)
delivers RAW formats
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Street Comparison

Street photography with Panasonic GX1
Street photography with Pentax K20D
70
sensor size is good (Four Thirds)
saves RAW files
provides touch focus
screen is fixed
no image stabilization
65
image stabilization (Sensor based)
sensor size is decent (APS-C)
delivers RAW formats
environment proofing
screen is fixed
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Sports Comparison

Panasonic GX1 as a Sports photography camera
Pentax K20D as a Sports photography camera
47
megapixel count decent (16 megapixels)
sensor size is good (Four Thirds)
offers tracking autofocus
max fps very slow (4.0 frames/s)
no image stabilization
terrible battery (300 CIPA)
does not have phase detect AF
68
image stabilization (Sensor based)
resolution is good (15 megapixels)
sensor size is decent (APS-C)
environment proofing
supports phase detect AF
continuous shooting slow (3.0 fps)
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Travel Comparison

Travel photography with Panasonic GX1
Travel photography with Pentax K20D
65
provides touch focus
megapixel count decent (16 megapixels)
has built in flash
missing Timelapse function
terrible battery (300 CIPA)
screen isn't selfie friendly
64
environment proofing
resolution is good (15 megapixels)
flash built-in
display is not selfie friendly
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Landscape Comparison

Landscape photography with Panasonic GX1
Landscape photography with Pentax K20D
62
has manual focus
swap lenses (Micro Four Thirds mount)
screen size is good (3")
megapixel count decent (16MP)
sensor size is good (Four Thirds)
saves RAW files
no image stabilization
terrible battery (300 shots)
missing Timelapse function
70
manual focus
interchangeable lenses (Pentax KAF2 mount)
image stabilization (Sensor based)
resolution is good (15MP)
sensor size is decent (APS-C)
delivers RAW formats
environment proofing
screen is small (2.7")
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Vlogging Comparison

Panasonic GX1 Vlogging info
Pentax K20D Vlogging info
32
touch screen
offers face detection focusing
high quality video (1920 x 1080 pixels)
screen isn't selfie friendly
no image stabilization
missing external microphone jack
9
can't shoot video
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Panasonic GX1 vs Pentax K20D Specifications

Detailed spec comparison table for Panasonic GX1 and Pentax K20D
 Panasonic Lumix DMC-GX1Pentax K20D
General Information
Make Panasonic Pentax
Model type Panasonic Lumix DMC-GX1 Pentax K20D
Category Entry-Level Mirrorless Advanced DSLR
Released 2012-02-14 2008-06-25
Physical type Rangefinder-style mirrorless Mid-size SLR
Sensor Information
Processor Chip Venus Engine FHD -
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor dimensions 17.3 x 13mm 23.4 x 15.6mm
Sensor area 224.9mm² 365.0mm²
Sensor resolution 16MP 15MP
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Peak resolution 4592 x 3448 4672 x 3104
Highest native ISO 12800 3200
Highest enhanced ISO - 6400
Minimum native ISO 160 100
RAW images
Autofocusing
Focus manually
Touch to focus
Continuous AF
Single AF
AF tracking
Selective AF
AF center weighted
AF multi area
AF live view
Face detect focusing
Contract detect focusing
Phase detect focusing
Total focus points 23 11
Lens
Lens mount type Micro Four Thirds Pentax KAF2
Total lenses 107 151
Focal length multiplier 2.1 1.5
Screen
Display type Fixed Type Fixed Type
Display size 3" 2.7"
Resolution of display 460 thousand dots 230 thousand dots
Selfie friendly
Liveview
Touch functionality
Display technology TFT Color LCD with wide-viewing angle -
Viewfinder Information
Viewfinder type Electronic (optional) Optical (pentaprism)
Viewfinder coverage - 95%
Viewfinder magnification - 0.64x
Features
Minimum shutter speed 60s 30s
Fastest shutter speed 1/4000s 1/4000s
Continuous shutter rate 4.0fps 3.0fps
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change WB
Image stabilization
Integrated flash
Flash distance 7.60 m 13.00 m (at ISO 100)
Flash options Auto, On, Off, Red-Eye, Slow Sync Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless
External flash
Auto exposure bracketing
White balance bracketing
Fastest flash synchronize 1/160s 1/180s
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 1920 x 1080 (60 fps) 1280 x 720 (60, 30 fps), 640 x 480 (30fps), 320 x 240 (30fps) -
Highest video resolution 1920x1080 None
Video format MPEG-4, AVCHD -
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
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 318 gr (0.70 pounds) 800 gr (1.76 pounds)
Physical dimensions 116 x 68 x 39mm (4.6" x 2.7" x 1.5") 142 x 101 x 70mm (5.6" x 4.0" x 2.8")
DXO scores
DXO Overall rating 55 65
DXO Color Depth rating 20.8 22.9
DXO Dynamic range rating 10.6 11.1
DXO Low light rating 703 639
Other
Battery life 300 pictures -
Type of battery Battery Pack -
Battery ID - D-LI50
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec)
Time lapse feature
Type of storage SD/SDHC/SDXC SD/MMC/SDHC card
Card slots 1 1
Retail cost $228 $700