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Panasonic GH5 vs Pentax K20D

Portability
59
Imaging
60
Features
89
Overall
71
Panasonic Lumix DMC-GH5 front
 
Pentax K20D front
Portability
59
Imaging
53
Features
52
Overall
52

Panasonic GH5 vs Pentax K20D Key Specs

Panasonic GH5
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3.2" Fully Articulated Screen
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 4096 x 2160 video
  • Micro Four Thirds Mount
  • 725g - 139 x 98 x 87mm
  • Launched January 2017
  • Superseded the Panasonic GH4
  • Later Model is Panasonic GH5 II
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
  • Introduced June 2008
  • Old Model is Pentax K10D
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Panasonic GH5 vs Pentax K20D Overview

Following is a extensive overview of the Panasonic GH5 and Pentax K20D, former is a Pro Mirrorless while the latter is a Advanced DSLR by manufacturers Panasonic and Pentax. There is a considerable difference between the sensor resolutions of the GH5 (20MP) and K20D (15MP) and the GH5 (Four Thirds) and K20D (APS-C) enjoy different sensor sizing.

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The GH5 was introduced 8 years after the K20D which is quite a large difference as far as tech is concerned. Each of the cameras offer different body type with the Panasonic GH5 being a SLR-style mirrorless camera and the Pentax K20D being a Mid-size SLR camera.

Before diving in to a detailed comparison, below is a simple introduction of how the GH5 grades against the K20D with respect to portability, imaging, features and an overall score.

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Reasons to pick Panasonic GH5 over the Pentax K20D

 GH5 K20D 
IntroducedJanuary 2017June 2008More modern by 104 months
Screen typeFully ArticulatedFixed Fully Articulating screen
Screen sizing3.2"2.7"Bigger screen (+0.5")
Screen resolution1620k230kSharper screen (+1390k dot)
Selfie screen Easy selfies
Touch screen Quickly navigate

Reasons to pick Pentax K20D over the Panasonic GH5

 K20D GH5 

Common features in the Panasonic GH5 and Pentax K20D

 GH5 K20D 
Focus manually Very exact focus

Panasonic GH5 vs Pentax K20D Physical Comparison

In case you're aiming to carry around your camera often, you should take into account its weight and proportions. The Panasonic GH5 features physical dimensions of 139mm x 98mm x 87mm (5.5" x 3.9" x 3.4") having a weight of 725 grams (1.60 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).

Contrast the Panasonic GH5 and Pentax K20D in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember that, the weight of an ILC will differ depending on the lens you are utilizing at that time. Underneath is the front view over all size comparison of the GH5 vs the K20D.

Panasonic GH5 vs Pentax K20D size comparison

Looking at size and weight, the portability score of the GH5 and K20D is 59 and 59 respectively.

Panasonic GH5 vs Pentax K20D top view buttons comparison

Panasonic GH5 vs Pentax K20D Sensor Comparison

Often, it's tough to picture the gap between sensor sizes just by reviewing technical specs. The image below should give you a clearer sense of the sensor dimensions in the GH5 and K20D.

As you have seen, both cameras offer different megapixels and different sensor sizes. The GH5 with its tinier sensor is going to make shooting bokeh more challenging and the Panasonic GH5 will deliver greater detail using its extra 5MP. Higher resolution will make it easier to crop pictures a little more aggressively. The more modern GH5 should have a benefit with regard to sensor tech.

Panasonic GH5 vs Pentax K20D sensor size comparison

Panasonic GH5 vs Pentax K20D Screen and ViewFinder

Panasonic GH5 vs Pentax K20D Screen and Viewfinder comparison
Photography Glossary

Photography Type Scores

Portrait Comparison

Panasonic GH5 Portrait photography factors
Pentax K20D Portrait photography factors
76
has manual focus
decent sensor resolution (20 megapixels)
decent sensor size (Four Thirds)
provides face detect focusing
exports RAW files
71
you can focus manually
decent sensor resolution (15 megapixels)
good sensor size (APS-C)
delivers RAW files
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Street Comparison

Panasonic GH5 Street photography features
Pentax K20D Street photography features
74
fully articulated screen
image stabilization (Sensor based 5-axis)
decent sensor size (Four Thirds)
exports RAW files
supports touch focus
weather proof
great high ISO (25,600)
65
has image stabilization (Sensor based)
good sensor size (APS-C)
delivers RAW files
weather sealing
screen does not articulate
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Sports Comparison

Panasonic GH5 Sports photography details
Pentax K20D Sports photography details
68
high shutter speed (1/8,000 seconds)
silent mode (1/16,000 seconds)
image stabilization (Sensor based 5-axis)
decent sensor resolution (20MP)
decent sensor size (Four Thirds)
provides tracking focus
weather proof
low battery power (410 CIPA)
no phase detect AF
68
has image stabilization (Sensor based)
decent sensor resolution (15MP)
good sensor size (APS-C)
weather sealing
comes with phase detect AF
low fps (3.0 frames/s)
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Travel Comparison

Panasonic GH5 Travel photography highlights
Pentax K20D Travel photography highlights
68
weather proof
has bluetooth
supports touch focus
decent sensor resolution (20 megapixels)
screen is selfie friendly
low battery power (410 shots)
64
weather sealing
decent sensor resolution (15 megapixels)
has built in flash
screen isn't selfie friendly
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Landscape Comparison

Panasonic GH5 as a Landscape photography camera
Pentax K20D as a Landscape photography camera
75
has manual focus
swap lenses (Micro Four Thirds mount)
nice screen size (3.2")
image stabilization (Sensor based 5-axis)
decent sensor resolution (20 megapixels)
decent sensor size (Four Thirds)
no low pass filter
great high ISO (25,600)
exports RAW files
weather proof
2 card slots
low battery power (410 CIPA)
70
you can focus manually
change lenses (Pentax KAF2 mount)
has image stabilization (Sensor based)
decent sensor resolution (15 megapixels)
good sensor size (APS-C)
delivers RAW files
weather sealing
screen is somewhat small (2.7")
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Vlogging Comparison

Panasonic GH5 Vlogging information
Pentax K20D Vlogging information
75
screen is selfie friendly
touchscreen enabled
image stabilization (Sensor based 5-axis)
provides face detect focusing
high res video (4096 x 2160 resolution)
comes with mic support
9
no video shooting
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Panasonic GH5 vs Pentax K20D Specifications

Detailed spec comparison table for Panasonic GH5 and Pentax K20D
 Panasonic Lumix DMC-GH5Pentax K20D
General Information
Company Panasonic Pentax
Model Panasonic Lumix DMC-GH5 Pentax K20D
Class Pro Mirrorless Advanced DSLR
Launched 2017-01-04 2008-06-25
Body design SLR-style mirrorless Mid-size SLR
Sensor Information
Processor Chip Venus Engine -
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor measurements 17.3 x 13mm 23.4 x 15.6mm
Sensor area 224.9mm² 365.0mm²
Sensor resolution 20 megapixel 15 megapixel
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Max resolution 5184 x 3888 4672 x 3104
Max native ISO 25600 3200
Max enhanced ISO - 6400
Min native ISO 200 100
RAW files
Min enhanced ISO 100 -
Autofocusing
Manual focus
Touch to focus
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
Number of focus points 225 11
Lens
Lens mount Micro Four Thirds Pentax KAF2
Total lenses 107 151
Crop factor 2.1 1.5
Screen
Range of screen Fully Articulated Fixed Type
Screen sizing 3.2 inch 2.7 inch
Screen resolution 1,620k dot 230k dot
Selfie friendly
Liveview
Touch screen
Viewfinder Information
Viewfinder type Electronic Optical (pentaprism)
Viewfinder resolution 3,680k dot -
Viewfinder coverage 100 percent 95 percent
Viewfinder magnification 0.76x 0.64x
Features
Minimum shutter speed 60s 30s
Fastest shutter speed 1/8000s 1/4000s
Fastest silent shutter speed 1/16000s -
Continuous shutter speed 12.0 frames per second 3.0 frames per second
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Change white balance
Image stabilization
Inbuilt flash
Flash range no built-in flash 13.00 m (at ISO 100)
Flash modes Auto, Auto/Redeye Reduction, Forced On, Forced On w/Redeye Reduction, Slow Sync, Slow Sync w/Redeye Reduction, Forced Off Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless
External flash
Auto exposure bracketing
White balance bracketing
Fastest flash sync - 1/180s
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 4096 x 2160 (24p), 3840 x 2160 (60p, 50p, 30p, 25p, 24p), 1920 x 1080 (60p, 50p, 30p, 25p, 24p) -
Max video resolution 4096x2160 None
Video file format MPEG-4, AVCHD, H.264 -
Microphone input
Headphone input
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 3.1 Gen 1(5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 725 grams (1.60 pounds) 800 grams (1.76 pounds)
Dimensions 139 x 98 x 87mm (5.5" x 3.9" x 3.4") 142 x 101 x 70mm (5.6" x 4.0" x 2.8")
DXO scores
DXO Overall score 77 65
DXO Color Depth score 23.9 22.9
DXO Dynamic range score 13.0 11.1
DXO Low light score 807 639
Other
Battery life 410 pictures -
Battery format Battery Pack -
Battery model - D-LI50
Self timer Yes (2 or 10 secs; 10 secs w/3 shots) Yes (2 or 10 sec)
Time lapse feature
Storage media Dual SD/SDHC/SDXC (UHS-II compatible) SD/MMC/SDHC card
Storage slots Two One
Launch pricing $1,298 $700