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Pentax K-1 II vs Sony A6400

Portability
55
Imaging
78
Features
82
Overall
79
Pentax K-1 Mark II front
 
Sony Alpha a6400 front
Portability
83
Imaging
69
Features
88
Overall
76

Pentax K-1 II vs Sony A6400 Key Specs

Pentax K-1 II
(Full Review)
  • 36MP - Full frame Sensor
  • 3.2" Fully Articulated Display
  • ISO 100 - 819200
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Pentax KAF4 Mount
  • 1010g - 137 x 110 x 86mm
  • Revealed February 2018
  • Old Model is Pentax K-1
Sony A6400
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Tilting Display
  • ISO 100 - 32000 (Push to 102400)
  • 3840 x 2160 video
  • Sony E Mount
  • 403g - 120 x 67 x 50mm
  • Announced January 2019
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Pentax K-1 II vs Sony A6400 Overview

Lets look more closely at the Pentax K-1 II versus Sony A6400, former is a Advanced DSLR while the other is a Advanced Mirrorless by competitors Pentax and Sony. There is a large difference between the resolutions of the K-1 II (36MP) and A6400 (24MP) and the K-1 II (Full frame) and A6400 (APS-C) posses totally different sensor sizes.

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The K-1 II was announced 10 months earlier than the A6400 and they are of a similar age. Both of these cameras have different body design with the Pentax K-1 II being a Mid-size SLR camera and the Sony A6400 being a Rangefinder-style mirrorless camera.

Before diving right into a more detailed comparison, here is a short view of how the K-1 II matches up against the A6400 when it comes to portability, imaging, features and an overall mark.

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Reasons to pick Pentax K-1 II over the Sony A6400

 K-1 II A6400 
Display typeFully ArticulatedTiltingFully Articulating display
Display dimensions3.2"3"Larger display (+0.2")
Display resolution1037k922kSharper display (+115k dot)

Reasons to pick Sony A6400 over the Pentax K-1 II

 A6400 K-1 II 
AnnouncedJanuary 2019February 2018Newer by 10 months
Selfie screen Take selfies
Touch display Easily navigate

Common features in the Pentax K-1 II and Sony A6400

 K-1 II A6400 
Manual focus Very exact focus

Pentax K-1 II vs Sony A6400 Physical Comparison

In case you're aiming to travel with your camera, you'll need to factor its weight and measurements. The Pentax K-1 II has got exterior dimensions of 137mm x 110mm x 86mm (5.4" x 4.3" x 3.4") with a weight of 1010 grams (2.23 lbs) whilst the Sony A6400 has proportions of 120mm x 67mm x 50mm (4.7" x 2.6" x 2.0") having a weight of 403 grams (0.89 lbs).

Take a look at the Pentax K-1 II versus Sony A6400 in our brand new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an ILC will change depending on the lens you have attached at that moment. Following is a front view over all size comparison of the K-1 II and the A6400.

Pentax K-1 II vs Sony A6400 size comparison

Using size and weight, the portability rating of the K-1 II and A6400 is 55 and 83 respectively.

Pentax K-1 II vs Sony A6400 top view buttons comparison

Pentax K-1 II vs Sony A6400 Sensor Comparison

Usually, it is difficult to envision the difference between sensor dimensions merely by reading specifications. The picture here might provide you a clearer sense of the sensor sizes in the K-1 II and A6400.

Plainly, the 2 cameras have different megapixels and different sensor dimensions. The K-1 II having a larger sensor will make achieving shallower DOF simpler and the Pentax K-1 II will deliver extra detail with its extra 12 Megapixels. Greater resolution can also make it easier to crop pics a bit more aggressively. The more aged K-1 II is going to be behind with regard to sensor technology.

Pentax K-1 II vs Sony A6400 sensor size comparison

Pentax K-1 II vs Sony A6400 Screen and ViewFinder

Pentax K-1 II vs Sony A6400 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-1 II Portrait photography highlights
Sony A6400 Portrait photography highlights
86
focusing manually
fantastic sensor resolution (36MP)
large sensor size (Full frame)
provides face detection focus
exports RAW files
81
focusing manually
good megapixels (24MP)
sensor size is decent (APS-C)
has face detection focus
saves RAW files
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Street Comparison

Pentax K-1 II Street photography factors
Sony A6400 Street photography factors
70
screen articulates fully
image stabilization (Sensor based 5-axis)
large sensor size (Full frame)
exports RAW files
weather proof
above average high ISO (819,200)
more heavy than competition (1,010 grams)
81
has a tilting screen
sensor size is decent (APS-C)
saves RAW files
boasts touch focus
weather sealing
very good ISO range (32,000)
lack of image stabilization
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Sports Comparison

Pentax K-1 II Sports photography features
Sony A6400 Sports photography features
77
high shutter speed (1/8,000s)
image stabilization (Sensor based 5-axis)
fantastic sensor resolution (36MP)
large sensor size (Full frame)
provides tracking autofocus
weather proof
supports phase detect auto focus
continuous shooting slow (4.4 frames per second)
bad battery power (670 per charge)
76
good megapixels (24MP)
sensor size is decent (APS-C)
has tracking autofocus
weather sealing
sensor has phase detect auto focus
lack of image stabilization
Photography Glossary

Travel Comparison

Pentax K-1 II as a Travel photography camera
Sony A6400 as a Travel photography camera
53
weather proof
fantastic sensor resolution (36 megapixels)
bad battery power (670 per charge)
more heavy than competition (1,010 grams)
doesn't posses selfie friendly screen
87
weather sealing
connects via bluetooth
boasts touch focus
good megapixels (24 megapixels)
has built in flash
display is selfie friendly
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Landscape Comparison

Pentax K-1 II as a Landscape photography camera
Sony A6400 as a Landscape photography camera
82
focusing manually
change lenses (Pentax KAF4 mount)
pretty good screen size (3.2 inches)
image stabilization (Sensor based 5-axis)
fantastic sensor resolution (36 megapixels)
large sensor size (Full frame)
doesnt have low pass filter
above average high ISO (819,200)
exports RAW files
weather proof
two card slots
bad battery power (670 per charge)
80
focusing manually
switch lenses (Sony E mount)
good sized screen (3")
good megapixels (24 megapixels)
sensor size is decent (APS-C)
very good ISO range (32,000)
saves RAW files
weather sealing
lack of image stabilization
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Vlogging Comparison

Pentax K-1 II Vlogging details
Sony A6400 Vlogging details
32
image stabilization (Sensor based 5-axis)
provides face detection focus
high video quality (1920 x 1080 pxls)
comes with external microphone socket
doesn't posses selfie friendly screen
more heavy than competition (1,010g)
80
display is selfie friendly
built-in touchscreen
has face detection focus
high quality video (3840 x 2160 pxls)
includes external microphone port
lack of image stabilization
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Pentax K-1 II vs Sony A6400 Specifications

Detailed spec comparison table for Pentax K-1 II and Sony A6400
 Pentax K-1 Mark IISony Alpha a6400
General Information
Make Pentax Sony
Model Pentax K-1 Mark II Sony Alpha a6400
Category Advanced DSLR Advanced Mirrorless
Revealed 2018-02-22 2019-01-15
Body design Mid-size SLR Rangefinder-style mirrorless
Sensor Information
Chip PRIME IV Bionz X
Sensor type CMOS CMOS
Sensor size Full frame APS-C
Sensor measurements 35.9 x 24mm 23.5 x 15.6mm
Sensor surface area 861.6mm² 366.6mm²
Sensor resolution 36 megapixel 24 megapixel
Anti aliasing filter
Aspect ratio 3:2 1:1, 3:2 and 16:9
Highest resolution 7360 x 4912 6000 x 4000
Highest native ISO 819200 32000
Highest boosted ISO - 102400
Min native ISO 100 100
RAW files
Autofocusing
Focus manually
AF touch
Continuous AF
AF single
Tracking AF
AF selectice
AF center weighted
AF multi area
Live view AF
Face detect AF
Contract detect AF
Phase detect AF
Number of focus points 33 425
Cross focus points 25 -
Lens
Lens mounting type Pentax KAF4 Sony E
Amount of lenses 151 121
Crop factor 1 1.5
Screen
Range of display Fully Articulated Tilting
Display size 3.2 inch 3 inch
Resolution of display 1,037k dot 922k dot
Selfie friendly
Liveview
Touch friendly
Viewfinder Information
Viewfinder type Optical (pentaprism) Electronic
Viewfinder resolution - 2,359k dot
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.7x 0.7x
Features
Slowest shutter speed 30s 30s
Maximum shutter speed 1/8000s 1/4000s
Continuous shooting speed 4.4 frames per sec 11.0 frames per sec
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Set WB
Image stabilization
Built-in flash
Flash range no built-in flash 6.00 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 Off, auto, on, slow sync, rear sync, redeye reduction, wireless, hi-speed sync
Hot shoe
AEB
White balance bracketing
Maximum flash sync 1/200s -
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported 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
Highest video resolution 1920x1080 3840x2160
Video format MPEG-4, H.264 MPEG-4, H.264, XAVC-S
Microphone jack
Headphone jack
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 2.0 (480 Mbit/sec)
GPS Built-in None
Physical
Environment seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 1010g (2.23 lbs) 403g (0.89 lbs)
Physical dimensions 137 x 110 x 86mm (5.4" x 4.3" x 3.4") 120 x 67 x 50mm (4.7" x 2.6" x 2.0")
DXO scores
DXO All around score not tested 83
DXO Color Depth score not tested 24.0
DXO Dynamic range score not tested 13.6
DXO Low light score not tested 1431
Other
Battery life 670 images 410 images
Battery form Battery Pack Battery Pack
Battery model D-LI90 NP-FW50
Self timer Yes (2 or 12 sec, custom) Yes
Time lapse recording
Storage media Dual SD/SDHC/SDXC (UHS-I) SD/SDHC/SDXC/Memory Stick DUO (UHS-I compliant)
Storage slots 2 One
Cost at launch $1,737 $898