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Canon 5D MIII vs Pentax K-3 III

Portability
55
Imaging
68
Features
74
Overall
70
Canon EOS 5D Mark III front
 
Pentax K-3 Mark III front
Portability
58
Imaging
71
Features
86
Overall
77

Canon 5D MIII vs Pentax K-3 III Key Specs

Canon 5D MIII
(Full Review)
  • 22MP - Full frame Sensor
  • 3.2" Fixed Display
  • ISO 100 - 25600 (Push to 102400)
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Canon EF Mount
  • 950g - 152 x 116 x 76mm
  • Launched May 2012
  • Succeeded the Canon 5D MII
  • Successor is Canon 5D MIV
Pentax K-3 III
(Full Review)
  • 26MP - APS-C Sensor
  • 3.2" Fixed Screen
  • 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
  • Introduced March 2021
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Canon 5D MIII vs Pentax K-3 III Overview

Here, we will be contrasting the Canon 5D MIII versus Pentax K-3 III, both Advanced DSLR digital cameras by competitors Canon and Pentax. The image resolution of the 5D MIII (22MP) and the K-3 III (26MP) is relatively well matched but the 5D MIII (Full frame) and K-3 III (APS-C) have different sensor dimensions.

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The 5D MIII was manufactured 9 years before the K-3 III which is quite a sizable difference as far as technology is concerned. Each of these cameras feature the same body design (Mid-size SLR).

Before diving right into a step-by-step comparison, here is a simple highlight of how the 5D MIII grades against the K-3 III in terms of portability, imaging, features and an overall mark.

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Reasons to pick Canon 5D MIII over the Pentax K-3 III

 5D MIII K-3 III 

Reasons to pick Pentax K-3 III over the Canon 5D MIII

 K-3 III 5D MIII 
IntroducedMarch 2021May 2012Newer by 107 months
Screen resolution1620k1040kSharper screen (+580k dot)
Touch friendly screen Quickly navigate

Common features in the Canon 5D MIII and Pentax K-3 III

 5D MIII K-3 III 
Focus manually More accurate focusing
Screen typeFixed Fixed Fixed screen
Screen size3.2"3.2"Same screen sizing
Selfie screen Missing selfie screen

Canon 5D MIII vs Pentax K-3 III Physical Comparison

For anyone who is going to travel with your camera, you will have to factor its weight and measurements. The Canon 5D MIII offers exterior dimensions of 152mm x 116mm x 76mm (6.0" x 4.6" x 3.0") and a weight of 950 grams (2.09 lbs) while the Pentax K-3 III has proportions of 135mm x 104mm x 74mm (5.3" x 4.1" x 2.9") accompanied by a weight of 820 grams (1.81 lbs).

Examine the Canon 5D MIII versus Pentax K-3 III in our brand new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an ILC will vary based on the lens you select during that time. The following is a front view overall size comparison of the 5D MIII versus the K-3 III.

Canon 5D MIII vs Pentax K-3 III size comparison

Factoring in dimensions and weight, the portability rating of the 5D MIII and K-3 III is 55 and 58 respectively.

Canon 5D MIII vs Pentax K-3 III top view buttons comparison

Canon 5D MIII vs Pentax K-3 III Sensor Comparison

Typically, its tough to visualize the contrast between sensor dimensions just by reading through specs. The image underneath will help offer you a stronger sense of the sensor dimensions in the 5D MIII and K-3 III.

As you can plainly see, both of those cameras come with different megapixels and different sensor dimensions. The 5D MIII due to its bigger sensor is going to make shooting bokeh simpler and the Pentax K-3 III will give you more detail due to its extra 4MP. Higher resolution can also let you crop shots a good deal more aggressively. The more aged 5D MIII is going to be behind with regard to sensor tech.

Canon 5D MIII vs Pentax K-3 III sensor size comparison

Canon 5D MIII vs Pentax K-3 III Screen and ViewFinder

Canon 5D MIII vs Pentax K-3 III Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Canon 5D MIII Portrait photography highlights
Pentax K-3 III Portrait photography highlights
80
manual focus
good MP (22MP)
large sensor size (Full frame)
comes with face detect focusing
exports RAW formats
82
you can focus manually
MP count amazing (26 megapixels)
nice sensor size (APS-C)
has face detect focusing
supports RAW files
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Street Comparison

Street photography with Canon 5D MIII
Street photography with Pentax K-3 III
58
large sensor size (Full frame)
exports RAW formats
weather proof
great high ISO (25,600)
fixed screen
no image stabilization
heavier than others (950g)
70
built in image stabilization (Sensor based)
nice sensor size (APS-C)
supports RAW files
includes focus via touch
weather proof
very good ISO range (1,600,000)
screen is fixed
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Sports Comparison

Canon 5D MIII Sports photography information
Pentax K-3 III Sports photography information
71
high shutter speed (1/8,000s)
good MP (22MP)
large sensor size (Full frame)
comes with tracking focus
weather proof
comes with phase detect AF
slow fps (6.0 frames per second)
no image stabilization
79
maximum shutter speed is high (1/8,000s)
built in image stabilization (Sensor based)
MP count amazing (26 megapixels)
nice sensor size (APS-C)
has tracking focus
weather proof
has phase detect AF
low battery pack (800 per charge)
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Travel Comparison

Canon 5D MIII Travel photography highlights
Pentax K-3 III Travel photography highlights
51
weather proof
good MP (22 megapixels)
missing Time Lapse function
heavier than others (950g)
doesn't have a selfie friendly display
64
weather proof
connects via bluetooth
includes focus via touch
MP count amazing (26 megapixels)
low battery pack (800 CIPA)
display isn't selfie friendly
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Landscape Comparison

Canon 5D MIII Landscape photography information
Pentax K-3 III Landscape photography information
73
manual focus
switch lenses (Canon EF mount)
screen is a good size (3.2")
good MP (22MP)
large sensor size (Full frame)
great high ISO (25,600)
exports RAW formats
weather proof
2 card slots
no image stabilization
missing Time Lapse function
80
you can focus manually
interchangeable lenses (Pentax KAF2 mount)
screen is a good size (3.2")
built in image stabilization (Sensor based)
MP count amazing (26 megapixels)
nice sensor size (APS-C)
doesnt have anti aliasing filter
very good ISO range (1,600,000)
supports RAW files
weather proof
has double storage slots
low battery pack (800 shots)
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Vlogging Comparison

Canon 5D MIII Vlogging details
Pentax K-3 III Vlogging details
27
comes with face detect focusing
video res high (1920 x 1080 resolution)
does have mic support
doesn't have a selfie friendly display
no image stabilization
heavier than others (950g)
35
built-in touchscreen
built in image stabilization (Sensor based)
has face detect focusing
high quality video (3840 x 2160 resolution)
has microphone port
display isn't selfie friendly
Photography Glossary

Canon 5D MIII vs Pentax K-3 III Specifications

Detailed spec comparison table for Canon 5D MIII and Pentax K-3 III
 Canon EOS 5D Mark IIIPentax K-3 Mark III
General Information
Manufacturer Canon Pentax
Model Canon EOS 5D Mark III Pentax K-3 Mark III
Type Advanced DSLR Advanced DSLR
Launched 2012-05-22 2021-03-31
Body design Mid-size SLR Mid-size SLR
Sensor Information
Processor Digic 5+ -
Sensor type CMOS CMOS
Sensor size Full frame APS-C
Sensor measurements 36 x 24mm 23 x 15.5mm
Sensor area 864.0mm² 356.5mm²
Sensor resolution 22 megapixel 26 megapixel
Anti aliasing filter
Aspect ratio 3:2 3:2
Max resolution 5760 x 3840 6192 x 4128
Max native ISO 25600 1600000
Max enhanced ISO 102400 -
Minimum native ISO 100 100
RAW data
Minimum enhanced ISO 50 -
Autofocusing
Manual focus
Autofocus touch
Continuous autofocus
Single autofocus
Autofocus tracking
Autofocus selectice
Center weighted autofocus
Autofocus multi area
Live view autofocus
Face detect focus
Contract detect focus
Phase detect focus
Number of focus points 61 101
Cross focus points 41 25
Lens
Lens mounting type Canon EF Pentax KAF2
Available lenses 250 156
Crop factor 1 1.6
Screen
Range of display Fixed Type Fixed Type
Display sizing 3.2 inches 3.2 inches
Resolution of display 1,040k dot 1,620k dot
Selfie friendly
Liveview
Touch friendly
Display tech Clear View II TFT LCD -
Viewfinder Information
Viewfinder type Optical (pentaprism) Optical (pentaprism)
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.71x 0.7x
Features
Min shutter speed 30s 30s
Max shutter speed 1/8000s 1/8000s
Continuous shutter speed 6.0 frames/s 12.0 frames/s
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Change white balance
Image stabilization
Integrated 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
AE bracketing
White balance bracketing
Max flash sync 1/200s 1/200s
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 1920 x 1080 (29.97, 25, 23.976 fps fps), 1280 x 720 (59.94, 50 fps), 640 x 480 (25, 30 fps) 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
Max video resolution 1920x1080 3840x2160
Video data format H.264 MPEG-4, H.264
Microphone jack
Headphone jack
Connectivity
Wireless Optional Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 3.2 Gen 1 (5 GBit/sec)
GPS Optional None
Physical
Environment seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 950g (2.09 lb) 820g (1.81 lb)
Physical dimensions 152 x 116 x 76mm (6.0" x 4.6" x 3.0") 135 x 104 x 74mm (5.3" x 4.1" x 2.9")
DXO scores
DXO Overall score 81 not tested
DXO Color Depth score 24.0 not tested
DXO Dynamic range score 11.7 not tested
DXO Low light score 2293 not tested
Other
Battery life 950 images 800 images
Battery form Battery Pack Battery Pack
Battery model LP-E6 D-LI90
Self timer Yes (2 or 10 sec) Yes
Time lapse shooting
Storage media Compact Flash Type I (UDMA compatible), SD/SDHC/SDXC Dual SD/SDHC/SDXC slots (UHS-II supported in slot 1)
Storage slots Dual Dual
Retail price $2,780 $1,999