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Pentax K-1 II vs Sony A7 III

Portability
55
Imaging
78
Features
82
Overall
79
Pentax K-1 Mark II front
 
Sony Alpha A7 III front
Portability
63
Imaging
74
Features
92
Overall
81

Pentax K-1 II vs Sony A7 III Key Specs

Pentax K-1 II
(Full Review)
  • 36MP - Full frame Sensor
  • 3.2" Fully Articulated Screen
  • ISO 100 - 819200
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Pentax KAF4 Mount
  • 1010g - 137 x 110 x 86mm
  • Revealed February 2018
  • Superseded the Pentax K-1
Sony A7 III
(Full Review)
  • 24MP - Full frame Sensor
  • 3" Tilting Display
  • ISO 100 - 51200 (Expand to 204800)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 650g - 127 x 96 x 74mm
  • Announced February 2018
  • Earlier Model is Sony A7 II
  • Later Model is Sony A7 IV
Photography Glossary

Pentax K-1 II vs Sony A7 III Overview

Below is a comprehensive review of the Pentax K-1 II vs Sony A7 III, former being a Advanced DSLR while the other is a Pro Mirrorless by manufacturers Pentax and Sony. There exists a noticeable gap among the resolutions of the K-1 II (36MP) and A7 III (24MP) but they possess the same exact sensor dimensions (Full frame).

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The K-1 II was unveiled at a similar time to the A7 III and they are both of a similar age. Each of these cameras offer different body type with the Pentax K-1 II being a Mid-size SLR camera and the Sony A7 III being a SLR-style mirrorless camera.

Before delving in to a in depth comparison, below is a simple introduction of how the K-1 II scores against the A7 III for portability, imaging, features and an overall grade.

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Reasons to pick Pentax K-1 II over the Sony A7 III

 K-1 II A7 III 
Display typeFully ArticulatedTiltingFully Articulating display
Display sizing3.2"3"Larger display (+0.2")
Display resolution1037k922kClearer display (+115k dot)

Reasons to pick Sony A7 III over the Pentax K-1 II

 A7 III K-1 II 
Touch friendly display Easily navigate

Common features in the Pentax K-1 II and Sony A7 III

 K-1 II A7 III 
AnnouncedFebruary 2018February 2018Same age
Manually focus More precise focus
Selfie screen Neither has selfie screen

Pentax K-1 II vs Sony A7 III Physical Comparison

If you're looking to lug around your camera frequently, you have to factor its weight and volume. The Pentax K-1 II has external dimensions of 137mm x 110mm x 86mm (5.4" x 4.3" x 3.4") and a weight of 1010 grams (2.23 lbs) and the Sony A7 III has sizing of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") accompanied by a weight of 650 grams (1.43 lbs).

Look at the Pentax K-1 II vs Sony A7 III in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an ILC will vary depending on the lens you have chosen at the time. The following is the front view sizing comparison of the K-1 II and the A7 III.

Pentax K-1 II vs Sony A7 III size comparison

Taking into account dimensions and weight, the portability score of the K-1 II and A7 III is 55 and 63 respectively.

Pentax K-1 II vs Sony A7 III top view buttons comparison

Pentax K-1 II vs Sony A7 III Sensor Comparison

Quite often, its tough to visualize the difference in sensor measurements merely by researching a spec sheet. The visual underneath will provide you a clearer sense of the sensor dimensions in the K-1 II and A7 III.

As you can see, each of the cameras offer the same exact sensor sizing but different megapixels. You can anticipate the Pentax K-1 II to provide you with more detail having an extra 12MP. Greater resolution can also allow you to crop images a little more aggressively.

Pentax K-1 II vs Sony A7 III sensor size comparison

Pentax K-1 II vs Sony A7 III Screen and ViewFinder

Pentax K-1 II vs Sony A7 III Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-1 II as a Portrait photography camera
Sony A7 III as a Portrait photography camera
86
focusing manually
megapixel count great (36MP)
great sensor size (Full frame)
comes with face detect autofocus
saves RAW formats
84
has manual focus
decent megapixels (24 megapixels)
large sensor size (Full frame)
supports face detection autofocus
saves RAW formats
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Street Comparison

Pentax K-1 II Street photography details
Sony A7 III Street photography details
70
screen articulates
image stabilization (Sensor based 5-axis)
great sensor size (Full frame)
saves RAW formats
environment proof
very good ISO range (819,200)
heavier than average in class (1,010g)
78
screen tilts up and down
image stabilization (Sensor based 5-axis)
large sensor size (Full frame)
saves RAW formats
has touch to focus
environment proofing
above average high ISO (51,200)
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Sports Comparison

Pentax K-1 II Sports photography highlights
Sony A7 III Sports photography highlights
77
max shutter speed is good (1/8,000 seconds)
image stabilization (Sensor based 5-axis)
megapixel count great (36MP)
great sensor size (Full frame)
comes with tracking focus
environment proof
supports phase detect autofocus
very slow continuous shooting (4.4 frames/s)
terrible battery (670 CIPA)
87
maximum shutter speed is high (1/8,000s)
image stabilization (Sensor based 5-axis)
decent megapixels (24 megapixels)
large sensor size (Full frame)
supports tracking autofocus
environment proofing
good battery (610 shots)
has phase detect autofocus
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Travel Comparison

Pentax K-1 II Travel photography highlights
Sony A7 III Travel photography highlights
53
environment proof
megapixel count great (36 megapixels)
terrible battery (670 per charge)
heavier than average in class (1,010 grams)
doesn't feature selfie friendly screen
73
good battery (610 shots)
environment proofing
has bluetooth
has touch to focus
decent megapixels (24 megapixels)
doesn't have a selfie friendly screen
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Landscape Comparison

Pentax K-1 II as a Landscape photography camera
Sony A7 III as a Landscape photography camera
82
focusing manually
change lenses (Pentax KAF4 mount)
nice screen size (3.2 inches)
image stabilization (Sensor based 5-axis)
megapixel count great (36 megapixels)
great sensor size (Full frame)
no anti aliasing filter
very good ISO range (819,200)
saves RAW formats
environment proof
has double storage slots
terrible battery (670 shots)
85
has manual focus
swap lenses (Sony E mount)
nice screen size (3 inch)
image stabilization (Sensor based 5-axis)
decent megapixels (24 megapixels)
large sensor size (Full frame)
above average high ISO (51,200)
saves RAW formats
environment proofing
good battery (610 shots)
two card slots
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Vlogging Comparison

Pentax K-1 II Vlogging features
Sony A7 III Vlogging features
32
image stabilization (Sensor based 5-axis)
comes with face detect autofocus
high video quality (1920 x 1080 pxls)
comes with mic port
doesn't feature selfie friendly screen
heavier than average in class (1,010 grams)
36
touchscreen enabled
image stabilization (Sensor based 5-axis)
supports face detection autofocus
high res video (3840 x 2160 pixels)
has external microphone socket
doesn't have a selfie friendly screen
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Pentax K-1 II vs Sony A7 III Specifications

Detailed spec comparison table for Pentax K-1 II and Sony A7 III
 Pentax K-1 Mark IISony Alpha A7 III
General Information
Brand Name Pentax Sony
Model type Pentax K-1 Mark II Sony Alpha A7 III
Class Advanced DSLR Pro Mirrorless
Revealed 2018-02-22 2018-02-27
Physical type Mid-size SLR SLR-style mirrorless
Sensor Information
Chip PRIME IV Bionz X
Sensor type CMOS BSI-CMOS
Sensor size Full frame Full frame
Sensor measurements 35.9 x 24mm 35.8 x 23.8mm
Sensor area 861.6mm² 852.0mm²
Sensor resolution 36MP 24MP
Anti alias filter
Aspect ratio 3:2 3:2 and 16:9
Highest resolution 7360 x 4912 6000 x 4000
Highest native ISO 819200 51200
Highest boosted ISO - 204800
Minimum native ISO 100 100
RAW format
Minimum boosted ISO - 50
Autofocusing
Focus manually
Touch to focus
Autofocus continuous
Autofocus single
Autofocus tracking
Selective autofocus
Center weighted autofocus
Multi area autofocus
Autofocus live view
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Total focus points 33 693
Cross type focus points 25 -
Lens
Lens mount type Pentax KAF4 Sony E
Amount of lenses 151 121
Focal length multiplier 1 1
Screen
Screen type Fully Articulated Tilting
Screen size 3.2" 3"
Screen resolution 1,037k dots 922k dots
Selfie friendly
Liveview
Touch function
Viewfinder Information
Viewfinder type Optical (pentaprism) Electronic
Viewfinder resolution - 2,359k dots
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.7x 0.78x
Features
Slowest shutter speed 30 secs 30 secs
Maximum shutter speed 1/8000 secs 1/8000 secs
Continuous shooting rate 4.4 frames/s 10.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Set white balance
Image stabilization
Integrated flash
Flash distance 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 no built-in flash
External flash
AE bracketing
White balance bracketing
Maximum 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, 24p) 1920 x 1080 (120p, 60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p)
Highest video resolution 1920x1080 3840x2160
Video format MPEG-4, H.264 MPEG-4, AVCHD, XAVC S, H.264
Microphone port
Headphone port
Connectivity
Wireless 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 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 proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 1010g (2.23 pounds) 650g (1.43 pounds)
Dimensions 137 x 110 x 86mm (5.4" x 4.3" x 3.4") 127 x 96 x 74mm (5.0" x 3.8" x 2.9")
DXO scores
DXO All around rating not tested 96
DXO Color Depth rating not tested 25.0
DXO Dynamic range rating not tested 14.7
DXO Low light rating not tested 3730
Other
Battery life 670 photos 610 photos
Type of battery Battery Pack Battery Pack
Battery ID D-LI90 NP-FZ100
Self timer Yes (2 or 12 sec, custom) Yes (2 or 10 sec; continuous (3 or 5 exposures))
Time lapse shooting
Type of storage Dual SD/SDHC/SDXC (UHS-I) SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo
Card slots 2 2
Launch price $1,737 $1,998