Canon EOS-1D X Mark III Vs Pentax K-3 Mark III: full comparison

Canon EOS-1D X Mark III trophy medal portrait medal landscape medal sport medal street medal everyday

Pentax K-3 Mark III
75

Overall Score

64

Canon

EOS-1D X Mark III

Announced: 07 Jan 2020
Sensor Resolution: 20Mp
Sensor Type: Full frame CMOS
ISO: 100-102400
Weight: 1440g
Physical Dimensions: 158 x 168 x 83 mm
Viewfinder: Optical (pentaprism)
Screen Type: 3.2" Fixed
Video Resolutions: 5472x2886
65
Image Quality
48
99
Speed Performance
61
96
Versatility
98
47
Comfort
63

Pentax

K-3 Mark III

Announced: 31 Mar 2021
Sensor Resolution: 26Mp
Sensor Type: APS-C CMOS
ISO: 100-1600000
Weight: 820g
Physical Dimensions: 135 x 104 x 74 mm
Viewfinder: Optical (pentaprism)
Screen Type: 3.2" Fixed
Video Resolutions: 3840x2160
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The best camera for different types of photography

Canon
EOS-1D X Mark III

vs

Pentax
K-3 Mark III

68
Portrait Portrait Portrait
53
69
Landscape Landscape Landscape
51
87
SportSport Sport
66
69
Street Street Street
68
72
Everyday Everyday Everyday
71

Best alternative for types of photography

Canon EOS-1D X Mark III
pros and cons

Canon EOS-1D X Mark III

Canon

EOS-1D X Mark III

Announced: 07 Jan 2020
Sensor Resolution: 20Mp
Sensor Type: Full frame CMOS
ISO: 100-102400
Weight: 1440g
Physical Dimensions: 158 x 168 x 83 mm
Viewfinder: Optical (pentaprism)
Screen Type: 3.2" Fixed
Video Resolutions: 5472x2886

prospros

  • This camera autofocus is able to follow moving subjects
  • The Canon EOS-1D X Mark III is tropicalized - this means you can use it also in adverse atmospheric and environmental conditions without ruining it
  • The LCD display is a convenient and almost indispensable feature
  • The microphone input can be very useful if you shoot videos
  • Thanks to burst mode, it's ideal for action photos
  • It has fast shutter speed, ideal for action photos
  • Precise and fast autofocus, ideal for action photos, it performs well even in low light conditions
  • Canon EOS-1D X Mark III battery has 2850.0 shoots autonomy. This will allow long photo sessions without having the need to recharge it.
  • The second memory slot makes the camera more reliable, also for professional use
  • Thanks to the wireless connection, Canon EOS-1D X Mark III allows immediate picture sharing

conscons

  • Canon EOS-1D X Mark III is one of the heaviest cameras in its category. This makes it less suitable for street photography and daily use, but it could be a plus since it gives it more stability if you shoot regularly with the tripod.

Canon EOS-1D X Mark III and its rivals

Review compare Canon EOS-1D X Mark III with overall score Portrait
Portrait
Landscape
Landscape
Sport
Sport
Street
Street
Everyday
Everyday
CanonEOS-1D X Mark III Canon
EOS-1D X Mark III
75 68 69 87 69 72 buy on
NikonD6 Nikon
D6
71 68 68 79 66 69 buy on
NikonD780 Nikon
D780
71 69 69 67 74 77 buy on
CanonEOS 90D Canon
EOS 90D
65 54 52 66 70 75 buy on
PentaxK-3 Mark III Pentax
K-3 Mark III
64 53 51 66 68 71 buy on
CanonEOS Rebel SL3 Canon
EOS Rebel SL3
60 51 49 54 68 71 buy on
CanonEOS Rebel T8i Canon
EOS Rebel T8i
59 51 49 57 66 69 buy on

Pentax K-3 Mark III
pros and cons

Pentax K-3 Mark III

Pentax

K-3 Mark III

Announced: 31 Mar 2021
Sensor Resolution: 26Mp
Sensor Type: APS-C CMOS
ISO: 100-1600000
Weight: 820g
Physical Dimensions: 135 x 104 x 74 mm
Viewfinder: Optical (pentaprism)
Screen Type: 3.2" Fixed
Video Resolutions: 3840x2160

pros pros

  • This camera autofocus is able to follow moving subjects
  • The Pentax K-3 Mark III is tropicalized - this means you can use it also in adverse atmospheric and environmental conditions without ruining it
  • The integrated stabilizer allows you to shoot firmly even in low light conditions
  • The LCD display is a convenient and almost indispensable feature
  • The microphone input can be very useful if you shoot videos
  • Thanks to burst mode, it's ideal for action photos
  • The second memory slot makes the camera more reliable, also for professional use
  • Thanks to the wireless connection, Pentax K-3 Mark III allows immediate picture sharing

Pentax K-3 Mark III and its rivals

Review compare Pentax K-3 Mark III with overall score Portrait
Portrait
Landscape
Landscape
Sport
Sport
Street
Street
Everyday
Everyday
PentaxK-3 Mark III Pentax
K-3 Mark III
64 53 51 66 68 71 buy on
NikonD780 Nikon
D780
71 69 69 67 74 77 buy on
CanonEOS 90D Canon
EOS 90D
65 54 52 66 70 75 buy on
CanonEOS Rebel SL3 Canon
EOS Rebel SL3
60 51 49 54 68 71 buy on
CanonEOS Rebel T8i Canon
EOS Rebel T8i
59 51 49 57 66 69 buy on
PentaxKF Pentax
KF
58 51 50 55 63 67 buy on

Canon EOS-1D X Mark III vs Pentax K-3 Mark III, which is better?

In case you are wondering which of these cameras you should buy, then this is the right place to find an answer. Here you will find listed all the main differences among Canon EOS-1D X Mark III and Pentax K-3 Mark III, calculated by the CameraRace iCamRank algorithm.

  • Technically speaking, Canon EOS-1D X Mark III is superior to Pentax K-3 Mark III, with an overall iCamRank score of 75 and 64, respectively.
  • The image quality of Canon EOS-1D X Mark III (65) is superior to that of Pentax K-3 Mark III (48).
  • Canon EOS-1D X Mark III (99) performs better than Pentax K-3 Mark III (61) in terms of speed.
  • Canon EOS-1D X Mark III (96) and Pentax K-3 Mark III (98) are characterized by similar versatility.
  • The handling of Pentax K-3 Mark III (63) is more effective than that of Canon EOS-1D X Mark III (47).

But, as you may know, the technical performance is meaningless if applied to the wrong context. This is the reason why the iCamRank "weights" differently the camera technical features for each type of photography. Thus, below you'll find our suggestions, based on your preferred photography genre:

Whatever type of photography shall you prefer, Canon EOS-1D X Mark III is superior to Pentax K-3 Mark III in all conditions.

Need further details? Below you will find a full comparison of all the technical specifications.

Canon
EOS-1D X Mark III

Sensor
comparison

Pentax
K-3 Mark III

CMOS

Sensor Type

CMOS

Full frame up

Sensor Size

down APS-C

36.0 x 24.0 mm up

Sensor Dimensions

down 23.0 x 15.5 mm

864.0 mm2 up

Sensor Area

down 356.5 mm2

20 Mp down

Sensor Resolution

up 26 Mp

5472 x 3648 down

Max Image Resolution

up 6192 x 4128

102400 down

Max Native ISO

up 1600000

100

Min Native ISO

100

yes

RAW Support

yes

Canon
EOS-1D X Mark III

Lens
comparison

Pentax
K-3 Mark III

Canon EF

Lens Mount

Pentax KAF2

272 up

Number of Lenses

down 155

1

Focal Length Multiplier

1.5

Canon
EOS-1D X Mark III

Screen Type
comparison

Pentax
K-3 Mark III

Fixed

Screen Type

Fixed

3.2"

Screen Size

3.2"

2100Kdot up

Screen Resolution

down 1620Kdot

yes

Live View

yes

yes

Touch Screen

yes

Canon
EOS-1D X Mark III

Viewfinder
comparison

Pentax
K-3 Mark III

Optical (pentaprism)

Viewfinder

Optical (pentaprism)

None

Viewfinder Resolution

None

100

Viewfinder Coverage

100

0.76

Viewfinder Magnification

0.7x

Canon
EOS-1D X Mark III

Features
comparison

Pentax
K-3 Mark III

30s

Min Shutter Speed

30s

1/8000s

Max Shutter Speed

-

20fps up

Continuous Shooting

down 12fps

yes

Shutter Priority

yes

yes

Aperture Priority

yes

yes

Manual Exposure Mode

yes

yes

Exposure Compensation

yes

yes

Custom White Balance

yes

no

Image Stabilization

yes

no

Built-in Flash

no

None

Flash Range

None

-

Max Flash Sync

1/200s

no built-in flash

Flash Modes

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

yes

External Flash

yes

yes

AE Bracketing

yes

yes

WB Bracketing

yes

Canon
EOS-1D X Mark III

Exposure Modes
comparison

Pentax
K-3 Mark III

yes

Multi-Segment

yes

yes

Average

yes

yes

Spot

yes

yes

Partial

no

no

AF-Area

no

no

Center Weighted

no

Canon
EOS-1D X Mark III

Dxo Sensor Scores
comparison

Pentax
K-3 Mark III

dato non disponibile

DxO Overall Score

dato non disponibile

dato non disponibile

DxO Color Depth

dato non disponibile

dato non disponibile

DxO Dynamic Range

dato non disponibile

dato non disponibile

DxO Low Light ISO

dato non disponibile

Canon
EOS-1D X Mark III

Autofocus
comparison

Pentax
K-3 Mark III

yes

AF Touch

yes

yes

AF Continuous

yes

yes

AF Single

yes

yes

AF Tracking

yes

yes

AF Selective

yes

yes

AF Center

yes

yes

AF MultiArea

yes

yes

AF Live View

yes

yes

AF Face Detection

yes

yes

AF Contrast Detection

yes

yes

AF Phase Detection

yes

191 up

Number of Focus Points

down 101

155 up

Number of Cross Focus Points

down 25

Canon
EOS-1D X Mark III

Video Features
comparison

Pentax
K-3 Mark III

5472 X 2886 (60p 30p 25p 24p 23.98p) 1920 x 1080 (120p 60p 50p 25p 24p 23.98p)

Video Resolutions

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

5472x2886

Max Video Resolution

3840x2160

MPEG-4 H.264 H.265

Video Formats

MPEG-4 H.264

yes

Microphone Port

yes

yes

Headphone Port

yes

Canon
EOS-1D X Mark III

Connectivity
comparison

Pentax
K-3 Mark III

Built-in

Wireless Connectivity

Built-in

yes

HDMI

yes

USB 3.1 Gen 1 (5 GBit/sec)

USB

USB 3.2 Gen 1 (5 GBit/sec)

Canon
EOS-1D X Mark III

Physical
comparison

Pentax
K-3 Mark III

yes

Environmental Sealing

yes

no

Water Proof

no

no

Dust Proof

no

no

Shock Proof

no

no

Crush Proof

no

no

Freeze Proof

no

1440g

Weight

820g

158 x 168 x 83 mm

Physical Dimensions

135 x 104 x 74 mm

2850 up

Battery Life

down 800

Built-in

Battery Type

Battery Pack

Battery Model

D-LI90

Canon
EOS-1D X Mark III

Other Features
comparison

Pentax
K-3 Mark III

Yes

Self Timer

Yes

yes

Timelapse Recording

yes

yes

GPS

no

Dual CFexpress type B

Storage Type

Dual SD SDHC SDXC slots (UHS-II supported in slot 1)

2

Storage Slots

2

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