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Pentax K-3 vs Pentax K-r

Portability
59
Imaging
65
Features
85
Overall
73
Pentax K-3 front
 
Pentax K-r front
Portability
67
Imaging
53
Features
52
Overall
52

Pentax K-3 vs Pentax K-r Key Specs

Pentax K-3
(Full Review)
  • 24MP - APS-C Sensor
  • 3.2" Fixed Screen
  • ISO 100 - 51200
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 800g - 131 x 100 x 77mm
  • Announced April 2014
  • Newer Model is Pentax K-3 II
Pentax K-r
(Full Review)
  • 12MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 200 - 12800 (Bump to 25600)
  • Sensor based Image Stabilization
  • 1/6000s Maximum Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 598g - 125 x 97 x 68mm
  • Announced March 2011
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Pentax K-3 vs Pentax K-r Overview

Lets look a bit more in depth at the Pentax K-3 vs Pentax K-r, former is a Advanced DSLR while the latter is a Entry-Level DSLR and both of them are manufactured by Pentax. There is a noticeable difference among the resolutions of the K-3 (24MP) and K-r (12MP) but they use the exact same sensor sizes (APS-C).

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The K-3 was unveiled 3 years after the K-r which is a fairly sizable difference as far as camera tech is concerned. Both cameras come with different body type with the Pentax K-3 being a Mid-size SLR camera and the Pentax K-r being a Compact SLR camera.

Before getting straight into a full comparison, below is a brief summation of how the K-3 matches up vs the K-r in the way of portability, imaging, features and an overall mark.

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Reasons to pick Pentax K-3 over the Pentax K-r

 K-3 K-r 
AnnouncedApril 2014March 2011Newer by 38 months
Screen dimension3.2"3"Bigger screen (+0.2")
Screen resolution1037k921kSharper screen (+116k dot)

Reasons to pick Pentax K-r over the Pentax K-3

 K-r K-3 

Common features in the Pentax K-3 and Pentax K-r

 K-3 K-r 
Manual focus Very accurate focus
Screen typeFixed Fixed Fixed screen
Selfie screen Lack of selfie screen
Touch screen Lack of Touch screen

Pentax K-3 vs Pentax K-r Physical Comparison

For those who are aiming to travel with your camera frequently, you are going to need to consider its weight and measurements. The Pentax K-3 features physical dimensions of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") along with a weight of 800 grams (1.76 lbs) while the Pentax K-r has proportions of 125mm x 97mm x 68mm (4.9" x 3.8" x 2.7") accompanied by a weight of 598 grams (1.32 lbs).

Take a look at the Pentax K-3 vs Pentax K-r in our newest Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember, the weight of an ILC will vary based on the lens you select at the time. Underneath is the front view over all size comparison of the K-3 and the K-r.

Pentax K-3 vs Pentax K-r size comparison

Considering size and weight, the portability score of the K-3 and K-r is 59 and 67 respectively.

Pentax K-3 vs Pentax K-r top view buttons comparison

Pentax K-3 vs Pentax K-r Sensor Comparison

Usually, it is difficult to visualise the difference in sensor dimensions only by seeing technical specs. The image below might give you a better sense of the sensor sizes in the K-3 and K-r.

As you can tell, both of these cameras posses the exact same sensor measurements albeit not the same megapixels. You can count on the Pentax K-3 to show extra detail having an extra 12MP. Higher resolution can also help you crop photographs somewhat more aggressively. The younger K-3 will have a benefit with regard to sensor innovation.

Pentax K-3 vs Pentax K-r sensor size comparison

Pentax K-3 vs Pentax K-r Screen and ViewFinder

Pentax K-3 vs Pentax K-r Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-3 as a Portrait photography camera
Pentax K-r as a Portrait photography camera
79
has manual focus
resolution is good (24MP)
decent sensor size (APS-C)
provides face detection focus
delivers RAW files
63
manual focus
sensor size is decent (APS-C)
offers face detect autofocus
supports RAW files
sensor resolution not great (12MP)
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Street Comparison

Street photography with Pentax K-3
Street photography with Pentax K-r
69
has image stabilization (Sensor based)
decent sensor size (APS-C)
delivers RAW files
environment sealing
great high ISO (51,200)
no articulating screen
67
built in image stabilization (Sensor based)
sensor size is decent (APS-C)
supports RAW files
screen is fixed
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Sports Comparison

Pentax K-3 Sports photography factors
Pentax K-r Sports photography factors
76
great max shutter speed (1/8,000s)
has image stabilization (Sensor based)
resolution is good (24 megapixels)
decent sensor size (APS-C)
provides tracking autofocus
environment sealing
supports phase detect auto focus
bad battery life (560 CIPA)
55
max shutter speed is good (1/6,000s)
built in image stabilization (Sensor based)
sensor size is decent (APS-C)
has phase detect autofocus
max fps low (6.0 fps)
sensor resolution not great (12 megapixels)
bad battery pack (470 CIPA)
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Travel Comparison

Travel photography with Pentax K-3
Travel photography with Pentax K-r
60
environment sealing
resolution is good (24 megapixels)
has built in flash
bad battery life (560 per charge)
display isn't selfie friendly
47
built-in flash
bad battery pack (470 per charge)
sensor resolution not great (12 megapixels)
does not have a selfie friendly screen
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Landscape Comparison

Pentax K-3 Landscape photography information
Pentax K-r Landscape photography information
77
has manual focus
interchangeable lenses (Pentax KAF2 mount)
pretty good screen size (3.2 inch)
has image stabilization (Sensor based)
resolution is good (24 megapixels)
decent sensor size (APS-C)
does not have anti-alias filter
great high ISO (51,200)
delivers RAW files
environment sealing
2 card slots
bad battery life (560 per charge)
65
manual focus
change lenses (Pentax KAF2 mount)
screen size is good (3")
built in image stabilization (Sensor based)
sensor size is decent (APS-C)
supports RAW files
sensor resolution not great (12 megapixels)
bad battery pack (470 shots)
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Vlogging Comparison

Pentax K-3 Vlogging highlights
Pentax K-r Vlogging highlights
34
has image stabilization (Sensor based)
provides face detection focus
high quality video (1920 x 1080 pixels)
comes with external mic support
display isn't selfie friendly
26
built in image stabilization (Sensor based)
offers face detect autofocus
does not have a selfie friendly screen
low res video (1280 x 720 pixels)
missing microphone support
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Pentax K-3 vs Pentax K-r Specifications

Detailed spec comparison table for Pentax K-3 and Pentax K-r
 Pentax K-3Pentax K-r
General Information
Company Pentax Pentax
Model Pentax K-3 Pentax K-r
Category Advanced DSLR Entry-Level DSLR
Announced 2014-04-10 2011-03-11
Physical type Mid-size SLR Compact SLR
Sensor Information
Processor Chip Prime III Prime II
Sensor type CMOS CMOS
Sensor size APS-C APS-C
Sensor measurements 23.5 x 15.6mm 23.6 x 15.8mm
Sensor area 366.6mm² 372.9mm²
Sensor resolution 24MP 12MP
Anti aliasing filter
Aspect ratio 3:2 3:2
Highest Possible resolution 6016 x 4000 4288 x 2848
Maximum native ISO 51200 12800
Maximum enhanced ISO - 25600
Lowest native ISO 100 200
RAW files
Lowest enhanced ISO - 100
Autofocusing
Manual focus
Touch focus
AF continuous
Single AF
Tracking AF
Selective AF
AF center weighted
Multi area AF
AF live view
Face detection focusing
Contract detection focusing
Phase detection focusing
Number of focus points 27 11
Cross focus points 25 9
Lens
Lens mounting type Pentax KAF2 Pentax KAF2
Total lenses 151 151
Crop factor 1.5 1.5
Screen
Screen type Fixed Type Fixed Type
Screen diagonal 3.2 inch 3 inch
Screen resolution 1,037 thousand dots 921 thousand dots
Selfie friendly
Liveview
Touch functionality
Screen tech TFT LCD monitor TFT LCD monitor
Viewfinder Information
Viewfinder Optical (pentaprism) Optical (pentamirror)
Viewfinder coverage 100% 96%
Viewfinder magnification 0.64x 0.57x
Features
Min shutter speed 30s 30s
Max shutter speed 1/8000s 1/6000s
Continuous shutter rate 8.0 frames per second 6.0 frames per second
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Change WB
Image stabilization
Inbuilt flash
Flash range 13.00 m (at ISO 100) 12.00 m (at ISO 100)
Flash options Auto, on, off, red-eye, slow sync, slow sync + red-eye, trailing curtain sync, high speed, wireless, manual Auto, Red-eye Reduction, Slow-speed Sync, Trailing Curtain Sync, High-Speed Sync and Wireless Sync
External flash
AE bracketing
WB bracketing
Max flash synchronize 1/180s 1/180s
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p) 1280 x 720 (25 fps), 640 x 480 (25 fps)
Maximum video resolution 1920x1080 1280x720
Video format MPEG-4, H.264 Motion JPEG
Microphone support
Headphone support
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 3.0 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional Optional
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 800 grams (1.76 pounds) 598 grams (1.32 pounds)
Dimensions 131 x 100 x 77mm (5.2" x 3.9" x 3.0") 125 x 97 x 68mm (4.9" x 3.8" x 2.7")
DXO scores
DXO Overall score 80 72
DXO Color Depth score 23.7 22.9
DXO Dynamic range score 13.4 12.4
DXO Low light score 1216 755
Other
Battery life 560 photos 470 photos
Type of battery Battery Pack Battery Pack
Battery model D-LI90 D-LI109,4 x AA
Self timer Yes ( 2 or 12 seconds) Yes (2 or 12 sec)
Time lapse feature
Type of storage Dual SD/SDHC/SDXC SD/SDHC
Card slots Dual 1
Launch pricing $639 $1,100