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Pentax K-1 II vs Sony A77 II

Portability
55
Imaging
78
Features
82
Overall
79
Pentax K-1 Mark II front
 
Sony SLT-A77 II front
Portability
62
Imaging
65
Features
85
Overall
73

Pentax K-1 II vs Sony A77 II 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 Maximum Shutter
  • 1920 x 1080 video
  • Pentax KAF4 Mount
  • 1010g - 137 x 110 x 86mm
  • Announced February 2018
  • Old Model is Pentax K-1
Sony A77 II
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Fully Articulated Screen
  • ISO 50 - 25600
  • Sensor based Image Stabilization
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Sony/Minolta Alpha Mount
  • 647g - 143 x 104 x 81mm
  • Released May 2014
  • Replaced the Sony A77
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Pentax K-1 II vs Sony A77 II Overview

The following is a in-depth assessment of the Pentax K-1 II vs Sony A77 II, both Advanced DSLR cameras by manufacturers Pentax and Sony. There is a sizable difference among the resolutions of the K-1 II (36MP) and A77 II (24MP) and the K-1 II (Full frame) and A77 II (APS-C) come with totally different sensor measurements.

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The K-1 II was introduced 3 years after the A77 II which is a fairly significant difference as far as camera tech is concerned. Both the cameras offer the identical body type (Mid-size SLR).

Before going in to a more detailed comparison, below is a quick highlight of how the K-1 II grades vs the A77 II in relation to portability, imaging, features and an overall mark.

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Reasons to pick Pentax K-1 II over the Sony A77 II

 K-1 II A77 II 
ReleasedFebruary 2018May 2014Newer by 46 months
Screen sizing3.2"3"Bigger screen (+0.2")

Reasons to pick Sony A77 II over the Pentax K-1 II

 A77 II K-1 II 
Screen resolution1229k1037kClearer screen (+192k dot)
Selfie screen Easy selfies

Common features in the Pentax K-1 II and Sony A77 II

 K-1 II A77 II 
Manually focus More exact focus
Screen typeFully ArticulatedFully ArticulatedFully Articulated screen
Touch friendly screen Missing Touch friendly screen

Pentax K-1 II vs Sony A77 II Physical Comparison

When you are intending to travel with your camera regularly, you have to factor in its weight and measurements. The Pentax K-1 II provides exterior measurements 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 A77 II has proportions of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") along with a weight of 647 grams (1.43 lbs).

Compare the Pentax K-1 II vs Sony A77 II in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember, the weight of an ILC will differ depending on the lens you have attached during that time. Following is the front view measurement comparison of the K-1 II vs the A77 II.

Pentax K-1 II vs Sony A77 II size comparison

Factoring in size and weight, the portability rating of the K-1 II and A77 II is 55 and 62 respectively.

Pentax K-1 II vs Sony A77 II top view buttons comparison

Pentax K-1 II vs Sony A77 II Sensor Comparison

Usually, it's difficult to see the difference in sensor dimensions simply by researching specs. The image here will help give you a more clear sense of the sensor sizing in the K-1 II and A77 II.

As you can plainly see, both of those cameras enjoy different megapixels and different sensor dimensions. The K-1 II with its bigger sensor will make shooting shallower DOF easier and the Pentax K-1 II will result in extra detail using its extra 12 Megapixels. Higher resolution will allow you to crop shots far more aggressively. The newer K-1 II is going to have a benefit in sensor tech.

Pentax K-1 II vs Sony A77 II sensor size comparison

Pentax K-1 II vs Sony A77 II Screen and ViewFinder

Pentax K-1 II vs Sony A77 II Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-1 II as a Portrait photography camera
Sony A77 II as a Portrait photography camera
86
manual focus
MP count high (36MP)
sensor size is large (Full frame)
features face detect focus
exports RAW formats
79
you can focus manually
MP count good (24 megapixels)
good sensor size (APS-C)
offers face detect autofocus
exports RAW files
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Street Comparison

Pentax K-1 II Street photography information
Sony A77 II Street photography information
70
screen can move to multiple angles
image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
exports RAW formats
weather proofing
above average ISO range (819,200)
heavier than competition (1,010 grams)
76
screen articulates fully
built in image stabilization (Sensor based)
good sensor size (APS-C)
exports RAW files
environment proofing
very good ISO range (25,600)
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Sports Comparison

Pentax K-1 II Sports photography details
Sony A77 II Sports photography details
77
maximum shutter speed is high (1/8,000s)
image stabilization (Sensor based 5-axis)
MP count high (36MP)
sensor size is large (Full frame)
features tracking focus
weather proofing
sensor has phase detect auto focus
low frames per second (4.4 fps)
bad battery power (670 CIPA)
76
maximum shutter speed is high (1/8,000s)
built in image stabilization (Sensor based)
MP count good (24 megapixels)
good sensor size (APS-C)
offers tracking focus
environment proofing
has phase detect autofocus
bad battery power (480 per charge)
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Travel Comparison

Travel photography with Pentax K-1 II
Travel photography with Sony A77 II
53
weather proofing
MP count high (36MP)
bad battery power (670 CIPA)
heavier than competition (1,010g)
display is not selfie friendly
64
environment proofing
MP count good (24 megapixels)
has built in flash
selfie friendly screen
doesn't have Time Lapse recording
bad battery power (480 CIPA)
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Landscape Comparison

Landscape photography with Pentax K-1 II
Landscape photography with Sony A77 II
82
manual focus
switch lenses (Pentax KAF4 mount)
nice screen size (3.2 inch)
image stabilization (Sensor based 5-axis)
MP count high (36 megapixels)
sensor size is large (Full frame)
doesnt have anti aliasing filter
above average ISO range (819,200)
exports RAW formats
weather proofing
two card slots
bad battery power (670 shots)
73
you can focus manually
interchangeable lenses (Sony/Minolta Alpha mount)
screen size is good (3 inch)
built in image stabilization (Sensor based)
MP count good (24MP)
good sensor size (APS-C)
very good ISO range (25,600)
exports RAW files
environment proofing
bad battery power (480 shots)
doesn't have Time Lapse recording
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Vlogging Comparison

Pentax K-1 II Vlogging information
Sony A77 II Vlogging information
32
image stabilization (Sensor based 5-axis)
features face detect focus
video res high (1920 x 1080 pixels)
includes mic socket
display is not selfie friendly
heavier than competition (1,010 grams)
77
selfie friendly screen
built in image stabilization (Sensor based)
offers face detect autofocus
high video quality (1920 x 1080 resolution)
has mic port
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Pentax K-1 II vs Sony A77 II Specifications

Detailed spec comparison table for Pentax K-1 II and Sony A77 II
 Pentax K-1 Mark IISony SLT-A77 II
General Information
Make Pentax Sony
Model Pentax K-1 Mark II Sony SLT-A77 II
Category Advanced DSLR Advanced DSLR
Announced 2018-02-22 2014-05-21
Body design Mid-size SLR Mid-size SLR
Sensor Information
Processor PRIME IV Bionz X
Sensor type CMOS CMOS
Sensor size Full frame APS-C
Sensor dimensions 35.9 x 24mm 23.5 x 15.6mm
Sensor area 861.6mm² 366.6mm²
Sensor resolution 36 megapixel 24 megapixel
Anti aliasing filter
Aspect ratio 3:2 3:2 and 16:9
Highest resolution 7360 x 4912 6000 x 4000
Highest native ISO 819200 25600
Min native ISO 100 50
RAW files
Autofocusing
Manual focus
Touch to focus
Continuous autofocus
Single autofocus
Autofocus tracking
Selective autofocus
Autofocus center weighted
Autofocus multi area
Autofocus live view
Face detect autofocus
Contract detect autofocus
Phase detect autofocus
Number of focus points 33 79
Cross focus points 25 15
Lens
Lens mounting type Pentax KAF4 Sony/Minolta Alpha
Available lenses 151 143
Focal length multiplier 1 1.5
Screen
Range of display Fully Articulated Fully Articulated
Display size 3.2 inch 3 inch
Resolution of display 1,037 thousand dot 1,229 thousand dot
Selfie friendly
Liveview
Touch display
Viewfinder Information
Viewfinder type Optical (pentaprism) Electronic
Viewfinder resolution - 2,359 thousand dot
Viewfinder coverage 100% 100%
Viewfinder magnification 0.7x 0.73x
Features
Lowest shutter speed 30s 30s
Highest shutter speed 1/8000s 1/8000s
Continuous shooting speed 4.4 frames/s 12.0 frames/s
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Built-in flash
Flash range no built-in flash 12.00 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, fill, rear sync, slow sync
External flash
Auto exposure bracketing
White balance bracketing
Highest flash sync 1/200s 1/250s
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p) 1920 x 1080 (60p, 60i, 30p), 1440 x 1080 (30p), 640 x 480 (30p)
Highest video resolution 1920x1080 1920x1080
Video file format MPEG-4, H.264 MPEG-4, AVCHD, XAVC S
Mic 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
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 1010 grams (2.23 lbs) 647 grams (1.43 lbs)
Dimensions 137 x 110 x 86mm (5.4" x 4.3" x 3.4") 143 x 104 x 81mm (5.6" x 4.1" x 3.2")
DXO scores
DXO All around score not tested 82
DXO Color Depth score not tested 24.4
DXO Dynamic range score not tested 13.4
DXO Low light score not tested 1013
Other
Battery life 670 photographs 480 photographs
Type of battery Battery Pack Battery Pack
Battery model D-LI90 NP-FM500H
Self timer Yes (2 or 12 sec, custom) Yes (Yes (2 or 12 sec))
Time lapse shooting
Type of storage Dual SD/SDHC/SDXC (UHS-I) SD/ SDHC/SDXC, Memory Stick Pro Duo/ Pro-HG Duo
Storage slots Two One
Retail pricing $1,737 $1,198