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Pentax K-1 vs Pentax K20D

Portability
55
Imaging
76
Features
82
Overall
78
Pentax K-1 front
 
Pentax K20D front
Portability
59
Imaging
54
Features
52
Overall
53

Pentax K-1 vs Pentax K20D Key Specs

Pentax K-1
(Full Review)
  • 36MP - Full frame Sensor
  • 3.2" Fully Articulated Display
  • ISO 100 - 204800
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 1010g - 137 x 110 x 86mm
  • Announced February 2016
  • Refreshed by Pentax K-1 II
Pentax K20D
(Full Review)
  • 15MP - APS-C Sensor
  • 2.7" Fixed Display
  • ISO 100 - 3200 (Bump to 6400)
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 800g - 142 x 101 x 70mm
  • Announced June 2008
  • Old Model is Pentax K10D
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Pentax K-1 vs Pentax K20D Overview

Lets look more closely at the Pentax K-1 vs Pentax K20D, both Advanced DSLR digital cameras and both are manufactured by Pentax. There is a huge difference between the sensor resolutions of the K-1 (36MP) and K20D (15MP) and the K-1 (Full frame) and K20D (APS-C) provide different sensor measurements.

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The K-1 was brought out 7 years after the K20D which is quite a significant gap as far as tech is concerned. Both the cameras feature the same body design (Mid-size SLR).

Before delving right into a in-depth comparison, here is a simple highlight of how the K-1 grades versus the K20D in the way of portability, imaging, features and an overall score.

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Reasons to pick Pentax K-1 over the Pentax K20D

 K-1 K20D 
AnnouncedFebruary 2016June 2008More modern by 94 months
Display typeFully ArticulatedFixed Fully Articulating display
Display size3.2"2.7"Larger display (+0.5")
Display resolution1037k230kCrisper display (+807k dot)

Reasons to pick Pentax K20D over the Pentax K-1

 K20D K-1 

Common features in the Pentax K-1 and Pentax K20D

 K-1 K20D 
Focus manually More precise focusing
Selfie screen Neither contains selfie screen
Touch display Neither contains Touch display

Pentax K-1 vs Pentax K20D Physical Comparison

If you're intending to carry around your camera, you'll have to factor its weight and measurements. The Pentax K-1 has got external measurements of 137mm x 110mm x 86mm (5.4" x 4.3" x 3.4") along with a weight of 1010 grams (2.23 lbs) while the Pentax K20D has proportions of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") having a weight of 800 grams (1.76 lbs).

Check out the Pentax K-1 vs Pentax K20D in the all new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an Interchangeable Lens Camera will vary based on the lens you are working with at the time. Following is a front view over all size comparison of the K-1 compared to the K20D.

Pentax K-1 vs Pentax K20D size comparison

Using size and weight, the portability grade of the K-1 and K20D is 55 and 59 respectively.

Pentax K-1 vs Pentax K20D top view buttons comparison

Pentax K-1 vs Pentax K20D Sensor Comparison

Usually, it can be hard to picture the gap between sensor sizes only by reading through technical specs. The pic underneath should give you a clearer sense of the sensor sizing in the K-1 and K20D.

As you can tell, both of the cameras come with different megapixel count and different sensor sizes. The K-1 due to its larger sensor is going to make achieving shallow depth of field less difficult and the Pentax K-1 will give you greater detail having its extra 21 Megapixels. Greater resolution will also make it easier to crop images a good deal more aggressively. The younger K-1 should have an advantage in sensor technology.

Pentax K-1 vs Pentax K20D sensor size comparison

Pentax K-1 vs Pentax K20D Screen and ViewFinder

Pentax K-1 vs Pentax K20D Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-1 as a Portrait photography camera
Pentax K20D as a Portrait photography camera
85
focusing manually
amazing megapixels (36 megapixels)
sensor size is big (Full frame)
provides face detect focusing
supports RAW files
72
manual focus
good MP (15 megapixels)
sensor size is nice (APS-C)
supports RAW formats
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Street Comparison

Pentax K-1 Street photography factors
Pentax K20D Street photography factors
70
screen can move to multiple angles
has image stabilization (Sensor based 5-axis)
sensor size is big (Full frame)
supports RAW files
environment proofing
great high ISO (204,800)
more heavy than competition in class (1,010g)
65
image stabilization (Sensor based)
sensor size is nice (APS-C)
supports RAW formats
environment proof
fixed screen
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Sports Comparison

Pentax K-1 as a Sports photography camera
Pentax K20D as a Sports photography camera
76
maximum shutter speed is high (1/8,000s)
has image stabilization (Sensor based 5-axis)
amazing megapixels (36 megapixels)
sensor size is big (Full frame)
provides tracking focus
environment proofing
sensor has phase detect AF
continuous shooting slow (4.4 frames/s)
not so great battery pack (760 per charge)
68
image stabilization (Sensor based)
good MP (15MP)
sensor size is nice (APS-C)
environment proof
sensor has phase detect auto focus
max frames per second very slow (3.0 fps)
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Travel Comparison

Travel photography with Pentax K-1
Travel photography with Pentax K20D
53
environment proofing
amazing megapixels (36MP)
not so great battery pack (760 CIPA)
more heavy than competition in class (1,010g)
does not posses selfie friendly screen
64
environment proof
good MP (15 megapixels)
flash built-in
does not have a selfie friendly display
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Landscape Comparison

Pentax K-1 Landscape photography details
Pentax K20D Landscape photography details
81
focusing manually
swap lenses (Pentax KAF2 mount)
screen size is decent (3.2")
has image stabilization (Sensor based 5-axis)
amazing megapixels (36MP)
sensor size is big (Full frame)
no low pass filter
great high ISO (204,800)
supports RAW files
environment proofing
2 card slots
not so great battery pack (760 shots)
71
manual focus
switch lenses (Pentax KAF2 mount)
image stabilization (Sensor based)
good MP (15 megapixels)
sensor size is nice (APS-C)
supports RAW formats
environment proof
tiny screen (2.7")
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Vlogging Comparison

Vlogging with Pentax K-1
Vlogging with Pentax K20D
31
has image stabilization (Sensor based 5-axis)
provides face detect focusing
video resolution high (1920 x 1080 resolution)
includes microphone support
does not posses selfie friendly screen
more heavy than competition in class (1,010 grams)
9
can't record video
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Pentax K-1 vs Pentax K20D Specifications

Detailed spec comparison table for Pentax K-1 and Pentax K20D
 Pentax K-1Pentax K20D
General Information
Manufacturer Pentax Pentax
Model type Pentax K-1 Pentax K20D
Class Advanced DSLR Advanced DSLR
Announced 2016-02-17 2008-06-25
Physical type Mid-size SLR Mid-size SLR
Sensor Information
Sensor type CMOS CMOS
Sensor size Full frame APS-C
Sensor dimensions 35.9 x 24mm 23.4 x 15.6mm
Sensor surface area 861.6mm² 365.0mm²
Sensor resolution 36 megapixel 15 megapixel
Anti alias filter
Aspect ratio 3:2 3:2
Highest Possible resolution 7360 x 4912 4672 x 3104
Maximum native ISO 204800 3200
Maximum enhanced ISO - 6400
Min native ISO 100 100
RAW format
Autofocusing
Manual focusing
Autofocus touch
Continuous autofocus
Autofocus single
Tracking autofocus
Autofocus selectice
Autofocus center weighted
Autofocus multi area
Live view autofocus
Face detect autofocus
Contract detect autofocus
Phase detect autofocus
Total focus points 33 11
Cross type focus points 25 -
Lens
Lens support Pentax KAF2 Pentax KAF2
Amount of lenses 151 151
Focal length multiplier 1 1.5
Screen
Type of display Fully Articulated Fixed Type
Display size 3.2 inch 2.7 inch
Display resolution 1,037k dots 230k dots
Selfie friendly
Liveview
Touch functionality
Viewfinder Information
Viewfinder Optical (pentaprism) Optical (pentaprism)
Viewfinder coverage 100 percent 95 percent
Viewfinder magnification 0.7x 0.64x
Features
Min shutter speed 30s 30s
Max shutter speed 1/8000s 1/4000s
Continuous shutter rate 4.4 frames/s 3.0 frames/s
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Set white balance
Image stabilization
Inbuilt flash
Flash distance no built-in flash 13.00 m (at ISO 100)
Flash settings Auto Flash Discharge, Auto Flash + Red-eye Reduction, Flash On, Flash On + Red-eye Reduction, Slow-speed Sync, Slow-speed Sync + Red-eye, P-TTL, Trailing Curtain Sync, Contrast-control-sync, High-speed sync, Wireless sync Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless
External flash
AE bracketing
White balance bracketing
Max flash synchronize 1/200s 1/180s
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) -
Maximum video resolution 1920x1080 None
Video data format MPEG-4, H.264 -
Mic port
Headphone port
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS Built-in None
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 1010 gr (2.23 lb) 800 gr (1.76 lb)
Physical dimensions 137 x 110 x 86mm (5.4" x 4.3" x 3.4") 142 x 101 x 70mm (5.6" x 4.0" x 2.8")
DXO scores
DXO Overall rating 96 65
DXO Color Depth rating 25.4 22.9
DXO Dynamic range rating 14.6 11.1
DXO Low light rating 3280 639
Other
Battery life 760 pictures -
Form of battery Battery Pack -
Battery ID D-LI90 D-LI50
Self timer Yes (2 or 12 sec, custom) Yes (2 or 10 sec)
Time lapse feature
Storage type Dual SD/SDHC/SDXC (UHS-I) SD/MMC/SDHC card
Card slots Dual 1
Retail cost $1,499 $700