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Canon 6D MII vs Pentax K-3 III

Portability
59
Imaging
74
Features
92
Overall
81
Canon EOS 6D Mark II front
 
Pentax K-3 Mark III front
Portability
58
Imaging
71
Features
86
Overall
77

Canon 6D MII vs Pentax K-3 III Key Specs

Canon 6D MII
(Full Review)
  • 26MP - Full frame Sensor
  • 3" Fully Articulated Display
  • ISO 100 - 40000 (Push to 102400)
  • 1920 x 1080 video
  • Canon EF Mount
  • 765g - 144 x 111 x 75mm
  • Launched June 2017
  • Old Model is Canon 6D
Pentax K-3 III
(Full Review)
  • 26MP - APS-C Sensor
  • 3.2" Fixed Display
  • ISO 100 - 1600000
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Pentax KAF2 Mount
  • 820g - 135 x 104 x 74mm
  • Released March 2021
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Canon 6D MII vs Pentax K-3 III Overview

On this page, we are looking at the Canon 6D MII and Pentax K-3 III, both Advanced DSLR digital cameras by brands Canon and Pentax. The resolution of the 6D MII (26MP) and the K-3 III (26MP) is very similar but the 6D MII (Full frame) and K-3 III (APS-C) have different sensor dimensions.

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The 6D MII was introduced 4 years before the K-3 III which is quite a significant difference as far as tech is concerned. Each of the cameras have the same body design (Mid-size SLR).

Before delving into a in depth comparison, here is a quick summary of how the 6D MII grades versus the K-3 III in relation to portability, imaging, features and an overall score.

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Reasons to pick Canon 6D MII over the Pentax K-3 III

 6D MII K-3 III 
Display typeFully ArticulatedFixed Fully Articulating display
Selfie screen Take selfies

Reasons to pick Pentax K-3 III over the Canon 6D MII

 K-3 III 6D MII 
ReleasedMarch 2021June 2017More modern by 45 months
Display dimensions3.2"3"Larger display (+0.2")
Display resolution1620k1040kCrisper display (+580k dot)

Common features in the Canon 6D MII and Pentax K-3 III

 6D MII K-3 III 
Focus manually Dial accurate focus
Touch friendly display Easily navigate

Canon 6D MII vs Pentax K-3 III Physical Comparison

When you are aiming to carry around your camera often, you need to factor in its weight and dimensions. The Canon 6D MII comes with outside measurements of 144mm x 111mm x 75mm (5.7" x 4.4" x 3.0") along with a weight of 765 grams (1.69 lbs) whilst the Pentax K-3 III has dimensions of 135mm x 104mm x 74mm (5.3" x 4.1" x 2.9") accompanied by a weight of 820 grams (1.81 lbs).

Look at the Canon 6D MII and Pentax K-3 III in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Don't forget, the weight of an ILC will differ depending on the lens you are utilizing during that time. Underneath is a front view dimensions comparison of the 6D MII versus the K-3 III.

Canon 6D MII vs Pentax K-3 III size comparison

Considering size and weight, the portability grade of the 6D MII and K-3 III is 59 and 58 respectively.

Canon 6D MII vs Pentax K-3 III top view buttons comparison

Canon 6D MII vs Pentax K-3 III Sensor Comparison

Generally, it is hard to imagine the difference between sensor sizes purely by going over specs. The picture here will help provide you a far better sense of the sensor measurements in the 6D MII and K-3 III.

As you can plainly see, both of these cameras have the same MP but different sensor sizes. The 6D MII has got the larger sensor which will make achieving shallow DOF less difficult. The more aged 6D MII is going to be behind with regard to sensor technology.

Canon 6D MII vs Pentax K-3 III sensor size comparison

Canon 6D MII vs Pentax K-3 III Screen and ViewFinder

Canon 6D MII vs Pentax K-3 III Screen and Viewfinder comparison
Photography Glossary

Photography Type Scores

Portrait Comparison

Canon 6D MII Portrait photography features
Pentax K-3 III Portrait photography features
84
you can focus manually
great resolution (26MP)
great sensor size (Full frame)
offers face detection focus
saves RAW files
82
manual focus
high megapixels (26MP)
sensor size is decent (APS-C)
provides face detection focusing
exports RAW files
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Street Comparison

Canon 6D MII Street photography advice
Pentax K-3 III Street photography advice
77
fully articulated screen
has image stabilization
great sensor size (Full frame)
saves RAW files
boasts touch to focus
environment proofing
great ISO range (40,000)
70
has image stabilization (Sensor based)
sensor size is decent (APS-C)
exports RAW files
boasts touch focus
environment sealing
great high ISO (1,600,000)
no moving screen
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Sports Comparison

Canon 6D MII as a Sports photography camera
Pentax K-3 III as a Sports photography camera
87
has image stabilization
great resolution (26 megapixels)
great sensor size (Full frame)
offers tracking autofocus
environment proofing
better than average battery (1,200 CIPA)
sensor has phase detect auto focus
79
max shutter speed is good (1/8,000 seconds)
has image stabilization (Sensor based)
high megapixels (26 megapixels)
sensor size is decent (APS-C)
provides tracking autofocus
environment sealing
sensor has phase detect AF
low battery power (800 per charge)
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Travel Comparison

Canon 6D MII Travel photography highlights
Pentax K-3 III Travel photography highlights
78
better than average battery (1,200 per charge)
environment proofing
supports bluetooth
boasts touch to focus
great resolution (26 megapixels)
screen is selfie friendly
64
environment sealing
connects via bluetooth
boasts touch focus
high megapixels (26MP)
low battery power (800 per charge)
display isn't selfie friendly
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Landscape Comparison

Canon 6D MII Landscape photography details
Pentax K-3 III Landscape photography details
85
you can focus manually
switch lenses (Canon EF mount)
screen size is good (3 inch)
has image stabilization
great resolution (26 megapixels)
great sensor size (Full frame)
great ISO range (40,000)
saves RAW files
environment proofing
better than average battery (1,200 CIPA)
80
manual focus
interchangeable lenses (Pentax KAF2 mount)
screen is a good size (3.2")
has image stabilization (Sensor based)
high megapixels (26MP)
sensor size is decent (APS-C)
doesnt have low pass filter
great high ISO (1,600,000)
exports RAW files
environment sealing
2 card slots
low battery power (800 CIPA)
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Vlogging Comparison

Canon 6D MII as a Vlogging camera
Pentax K-3 III as a Vlogging camera
78
screen is selfie friendly
touch screen
has image stabilization
offers face detection focus
high quality video (1920 x 1080 pxls)
includes external microphone support
35
screen is touchscreen
has image stabilization (Sensor based)
provides face detection focusing
high quality video (3840 x 2160 resolution)
includes external microphone support
display isn't selfie friendly
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Canon 6D MII vs Pentax K-3 III Specifications

Detailed spec comparison table for Canon 6D MII and Pentax K-3 III
 Canon EOS 6D Mark IIPentax K-3 Mark III
General Information
Company Canon Pentax
Model Canon EOS 6D Mark II Pentax K-3 Mark III
Type Advanced DSLR Advanced DSLR
Launched 2017-06-29 2021-03-31
Physical type Mid-size SLR Mid-size SLR
Sensor Information
Powered by DIGIC 7 -
Sensor type CMOS CMOS
Sensor size Full frame APS-C
Sensor measurements 35.9 x 24mm 23 x 15.5mm
Sensor area 861.6mm² 356.5mm²
Sensor resolution 26 megapixels 26 megapixels
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Highest resolution 6240 x 4160 6192 x 4128
Highest native ISO 40000 1600000
Highest boosted ISO 102400 -
Lowest native ISO 100 100
RAW support
Lowest boosted ISO 50 -
Autofocusing
Manual focus
AF touch
AF continuous
AF single
AF tracking
Selective AF
AF center weighted
Multi area AF
AF live view
Face detect focusing
Contract detect focusing
Phase detect focusing
Number of focus points 45 101
Cross focus points 45 25
Lens
Lens mounting type Canon EF Pentax KAF2
Number of lenses 250 156
Focal length multiplier 1 1.6
Screen
Type of display Fully Articulated Fixed Type
Display sizing 3" 3.2"
Resolution of display 1,040 thousand dots 1,620 thousand dots
Selfie friendly
Liveview
Touch display
Viewfinder Information
Viewfinder type Optical (pentaprism) Optical (pentaprism)
Viewfinder coverage 98% 100%
Viewfinder magnification 0.71x 0.7x
Features
Lowest shutter speed 30 seconds 30 seconds
Highest shutter speed 1/4000 seconds 1/8000 seconds
Continuous shooting rate 6.5 frames/s 12.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change WB
Image stabilization
Built-in flash
Flash range no built-in flash no built-in flash
Flash modes no built-in flash Auto, Auto + Red-eye Reduction, Flash On, Flash On + Red-eye Reduction, Slow- speed Sync, Slow-speed Sync + Red-eye, P-TTL, Contrast-control-sync, High-speed sync, Wireless sync
Hot shoe
AEB
WB bracketing
Highest flash synchronize - 1/200 seconds
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 1920 x 1080 @ 60p / 60 Mbps, MP4, H.264, AAC 3840 x 2160 @ 30p, MOV, H.264, Linear PCM3840 x 2160 @ 24p, MOV, H.264, Linear PCM1920 x 1080 @ 60p, MOV, H.264, Linear PCM1920 x 1080 @ 30p, MOV, H.264, Linear PCM1920 x 1080 @ 24p, MOV, H.264, Linear PCM
Highest video resolution 1920x1080 3840x2160
Video data format MPEG-4, H.264 MPEG-4, H.264
Microphone support
Headphone support
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 3.2 Gen 1 (5 GBit/sec)
GPS Built-in None
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 765g (1.69 lb) 820g (1.81 lb)
Physical dimensions 144 x 111 x 75mm (5.7" x 4.4" x 3.0") 135 x 104 x 74mm (5.3" x 4.1" x 2.9")
DXO scores
DXO All around score 85 not tested
DXO Color Depth score 24.4 not tested
DXO Dynamic range score 11.9 not tested
DXO Low light score 2862 not tested
Other
Battery life 1200 shots 800 shots
Style of battery Battery Pack Battery Pack
Battery model LP-E6N D-LI90
Self timer Yes (2 or 10 secs) Yes
Time lapse shooting
Storage type SD/SDHC/SDXC (UHS-I compatible) Dual SD/SDHC/SDXC slots (UHS-II supported in slot 1)
Card slots 1 Two
Retail cost $1,799 $1,999