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Pentax K-1 vs Sony A9 II

Portability
55
Imaging
75
Features
82
Overall
77
Pentax K-1 front
 
Sony Alpha A9 Mark II front
Portability
62
Imaging
75
Features
93
Overall
82

Pentax K-1 vs Sony A9 II 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 Maximum Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 1010g - 137 x 110 x 86mm
  • Introduced February 2016
  • New Model is Pentax K-1 II
Sony A9 II
(Full Review)
  • 24MP - Full frame Sensor
  • 3" Tilting Screen
  • ISO 100 - 51200 (Raise to 204800)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 678g - 129 x 96 x 76mm
  • Launched October 2019
  • Replaced the Sony A9
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Pentax K-1 vs Sony A9 II Overview

Let's look a bit more in depth at the Pentax K-1 and Sony A9 II, former is a Advanced DSLR while the latter is a Pro Mirrorless by companies Pentax and Sony. There is a sizable difference among the image resolutions of the K-1 (36MP) and A9 II (24MP) but both cameras offer the identical sensor size (Full frame).

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The K-1 was manufactured 4 years earlier than the A9 II which is a fairly significant difference as far as camera tech is concerned. Each of these cameras feature different body design with the Pentax K-1 being a Mid-size SLR camera and the Sony A9 II being a SLR-style mirrorless camera.

Before diving right into a complete comparison, here is a simple summary of how the K-1 scores versus the A9 II in relation to portability, imaging, features and an overall mark.

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Reasons to pick Pentax K-1 over the Sony A9 II

 K-1 A9 II 
Screen typeFully ArticulatedTiltingFully Articulating screen
Screen size3.2"3"Bigger screen (+0.2")

Reasons to pick Sony A9 II over the Pentax K-1

 A9 II K-1 
LaunchedOctober 2019February 2016Newer by 44 months
Screen resolution1440k1037kCrisper screen (+403k dot)
Touch friendly screen Quickly navigate

Common features in the Pentax K-1 and Sony A9 II

 K-1 A9 II 
Manually focus More exact focusing
Selfie screen Neither provides selfie screen

Pentax K-1 vs Sony A9 II Physical Comparison

For anyone who is intending to travel with your camera regularly, you will need to take into account its weight and measurements. The Pentax K-1 provides outer measurements of 137mm x 110mm x 86mm (5.4" x 4.3" x 3.4") having a weight of 1010 grams (2.23 lbs) whilst the Sony A9 II has proportions of 129mm x 96mm x 76mm (5.1" x 3.8" x 3.0") with a weight of 678 grams (1.49 lbs).

Analyze the Pentax K-1 and Sony A9 II in our brand new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an ILC will differ dependant on the lens you have chosen at that time. Here is a front view size comparison of the K-1 against the A9 II.

Pentax K-1 vs Sony A9 II size comparison

Using size and weight, the portability grade of the K-1 and A9 II is 55 and 62 respectively.

Pentax K-1 vs Sony A9 II top view buttons comparison

Pentax K-1 vs Sony A9 II Sensor Comparison

Oftentimes, its hard to envision the gap in sensor dimensions only by viewing a spec sheet. The picture below might offer you a clearer sense of the sensor sizing in the K-1 and A9 II.

Clearly, both of these cameras feature the identical sensor size albeit not the same MP. You can count on the Pentax K-1 to result in extra detail due to its extra 12MP. Higher resolution will also enable you to crop shots way more aggressively. The more aged K-1 will be behind with regard to sensor tech.

Pentax K-1 vs Sony A9 II sensor size comparison

Pentax K-1 vs Sony A9 II Screen and ViewFinder

Pentax K-1 vs Sony A9 II Screen and Viewfinder comparison
Photography Glossary

Photography Type Scores

Portrait Comparison

Pentax K-1 Portrait photography details
Sony A9 II Portrait photography details
85
you can focus manually
great MP (36MP)
sensor size is great (Full frame)
comes with face detection focusing
delivers RAW files
85
has manual focus
good MP (24MP)
large sensor size (Full frame)
features face detection autofocus
exports RAW files
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Street Comparison

Street photography with Pentax K-1
Street photography with Sony A9 II
70
screen articulates
image stabilization (Sensor based 5-axis)
sensor size is great (Full frame)
delivers RAW files
environment proof
above average ISO range (204,800)
heavier than others in class (1,010 grams)
78
screen tilts up and down
has image stabilization (Sensor based 5-axis)
large sensor size (Full frame)
exports RAW files
has touch to focus
environment proofing
great ISO range (51,200)
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Sports Comparison

Sports photography with Pentax K-1
Sports photography with Sony A9 II
76
maximum shutter speed is high (1/8,000 seconds)
image stabilization (Sensor based 5-axis)
great MP (36MP)
sensor size is great (Full frame)
comes with tracking autofocus
environment proof
comes with phase detect AF
max fps low (4.4 fps)
low battery life (760 shots)
87
max shutter speed is good (1/8,000s)
quiet mode (1/32,000s)
fast continuous shooting (20.0 frames per second)
has image stabilization (Sensor based 5-axis)
good MP (24MP)
large sensor size (Full frame)
features tracking autofocus
environment proofing
good battery power (690 shots)
has phase detect autofocus
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Travel Comparison

Pentax K-1 as a Travel photography camera
Sony A9 II as a Travel photography camera
53
environment proof
great MP (36MP)
low battery life (760 shots)
heavier than others in class (1,010 grams)
screen isn't selfie friendly
73
good battery power (690 shots)
environment proofing
has bluetooth
has touch to focus
good MP (24MP)
display isn't selfie friendly
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Landscape Comparison

Pentax K-1 as a Landscape photography camera
Sony A9 II as a Landscape photography camera
81
you can focus manually
change lenses (Pentax KAF2 mount)
screen is a decent size (3.2 inches)
image stabilization (Sensor based 5-axis)
great MP (36MP)
sensor size is great (Full frame)
doesnt have anti aliasing filter
above average ISO range (204,800)
delivers RAW files
environment proof
two card slots
low battery life (760 CIPA)
86
has manual focus
switch lenses (Sony E mount)
screen size is good (3")
has image stabilization (Sensor based 5-axis)
good MP (24MP)
large sensor size (Full frame)
great ISO range (51,200)
exports RAW files
environment proofing
good battery power (690 per charge)
2 card slots
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Vlogging Comparison

Pentax K-1 Vlogging highlights
Sony A9 II Vlogging highlights
31
image stabilization (Sensor based 5-axis)
comes with face detection focusing
video resolution high (1920 x 1080 pxls)
does have external mic socket
screen isn't selfie friendly
heavier than others in class (1,010g)
36
touchscreen capability
has image stabilization (Sensor based 5-axis)
features face detection autofocus
video resolution high (3840 x 2160 pxls)
has external mic support
display isn't selfie friendly
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Pentax K-1 vs Sony A9 II Specifications

Detailed spec comparison table for Pentax K-1 and Sony A9 II
 Pentax K-1Sony Alpha A9 Mark II
General Information
Brand Pentax Sony
Model Pentax K-1 Sony Alpha A9 Mark II
Type Advanced DSLR Pro Mirrorless
Introduced 2016-02-17 2019-10-03
Physical type Mid-size SLR SLR-style mirrorless
Sensor Information
Powered by - BIONZ X
Sensor type CMOS BSI-CMOS
Sensor size Full frame Full frame
Sensor dimensions 35.9 x 24mm 35.6 x 23.8mm
Sensor surface area 861.6mm² 847.3mm²
Sensor resolution 36MP 24MP
Anti aliasing filter
Aspect ratio 3:2 3:2
Maximum resolution 7360 x 4912 6000 x 4000
Maximum native ISO 204800 51200
Maximum boosted ISO - 204800
Lowest native ISO 100 100
RAW photos
Lowest boosted ISO - 50
Autofocusing
Focus manually
AF touch
Continuous AF
AF single
AF tracking
AF selectice
AF center weighted
AF multi area
Live view AF
Face detect AF
Contract detect AF
Phase detect AF
Number of focus points 33 693
Cross focus points 25 -
Lens
Lens mount Pentax KAF2 Sony E
Number of lenses 151 121
Focal length multiplier 1 1
Screen
Display type Fully Articulated Tilting
Display diagonal 3.2 inches 3 inches
Resolution of display 1,037k dots 1,440k dots
Selfie friendly
Liveview
Touch friendly
Viewfinder Information
Viewfinder Optical (pentaprism) Electronic
Viewfinder resolution - 3,686k dots
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.7x 0.78x
Features
Lowest shutter speed 30 secs 30 secs
Highest shutter speed 1/8000 secs 1/8000 secs
Highest quiet shutter speed - 1/32000 secs
Continuous shooting rate 4.4 frames/s 20.0 frames/s
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Set WB
Image stabilization
Built-in flash
Flash range no built-in flash no built-in flash
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 Flash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction, Wireless, Hi-speed sync
External flash
AE bracketing
White balance bracketing
Highest flash synchronize 1/200 secs -
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p) 3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM
Maximum video resolution 1920x1080 3840x2160
Video data format MPEG-4, H.264 MPEG-4, AVCHD, H.264
Mic support
Headphone support
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 3.1 Gen 1 (5 GBit/sec)
GPS Built-in None
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 1010 gr (2.23 lb) 678 gr (1.49 lb)
Physical dimensions 137 x 110 x 86mm (5.4" x 4.3" x 3.4") 129 x 96 x 76mm (5.1" x 3.8" x 3.0")
DXO scores
DXO All around score 96 not tested
DXO Color Depth score 25.4 not tested
DXO Dynamic range score 14.6 not tested
DXO Low light score 3280 not tested
Other
Battery life 760 images 690 images
Style of battery Battery Pack Battery Pack
Battery model D-LI90 NP-FZ100
Self timer Yes (2 or 12 sec, custom) Yes (2, 5, 10 secs + continuous, 3 or 5 frames)
Time lapse recording
Type of storage Dual SD/SDHC/SDXC (UHS-I) Dual SD/SDHC/SDXC slots (UHS-II compatible)
Card slots Two Two
Retail cost $1,499 $4,498