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Pentax K-3 III vs Pentax K-7

Portability
58
Imaging
71
Features
86
Overall
77
Pentax K-3 Mark III front
 
Pentax K-7 front
Portability
60
Imaging
54
Features
69
Overall
60

Pentax K-3 III vs Pentax K-7 Key Specs

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
  • Announced March 2021
Pentax K-7
(Full Review)
  • 15MP - APS-C Sensor
  • 3" Fixed Display
  • ISO 100 - 2000 (Raise to 6400)
  • Sensor based Image Stabilization
  • 1/8000s Maximum Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 750g - 131 x 97 x 73mm
  • Released October 2009
  • Newer Model is Pentax K-5
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Pentax K-3 III vs Pentax K-7 Overview

Here, we are contrasting the Pentax K-3 III and Pentax K-7, both Advanced DSLR cameras and both are built by Pentax. There is a large difference among the sensor resolutions of the K-3 III (26MP) and K-7 (15MP) but both cameras have the identical sensor dimensions (APS-C).

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The K-3 III was introduced 11 years after the K-7 which is a fairly serious difference as far as camera tech is concerned. Each of these cameras feature the same body design (Mid-size SLR).

Before going straight to a in depth comparison, here is a simple introduction of how the K-3 III matches up versus the K-7 when considering portability, imaging, features and an overall mark.

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Reasons to pick Pentax K-3 III over the Pentax K-7

 K-3 III K-7 
ReleasedMarch 2021October 2009Newer by 140 months
Display size3.2"3"Larger display (+0.2")
Display resolution1620k921kCrisper display (+699k dot)
Touch display Easily navigate

Reasons to pick Pentax K-7 over the Pentax K-3 III

 K-7 K-3 III 

Common features in the Pentax K-3 III and Pentax K-7

 K-3 III K-7 
Manually focus More precise focus
Display typeFixed Fixed Fixed display
Selfie screen Neither contains selfie screen

Pentax K-3 III vs Pentax K-7 Physical Comparison

When you are looking to travel with your camera, you should take into account its weight and size. The Pentax K-3 III has got external measurements of 135mm x 104mm x 74mm (5.3" x 4.1" x 2.9") with a weight of 820 grams (1.81 lbs) and the Pentax K-7 has specifications of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") along with a weight of 750 grams (1.65 lbs).

See the Pentax K-3 III and Pentax K-7 in our newest Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an ILC will vary depending on the lens you have at that moment. Underneath is a front view measurement comparison of the K-3 III against the K-7.

Pentax K-3 III vs Pentax K-7 size comparison

Using size and weight, the portability grade of the K-3 III and K-7 is 58 and 60 respectively.

Pentax K-3 III vs Pentax K-7 top view buttons comparison

Pentax K-3 III vs Pentax K-7 Sensor Comparison

Usually, it can be difficult to visualise the gap in sensor dimensions simply by looking through specifications. The pic below will help provide you a much better sense of the sensor sizing in the K-3 III and K-7.

Plainly, each of these cameras feature the identical sensor size but not the same megapixels. You can anticipate the Pentax K-3 III to provide you with extra detail using its extra 11 Megapixels. Greater resolution will make it easier to crop images way more aggressively. The fresher K-3 III will have an edge with regard to sensor tech.

Pentax K-3 III vs Pentax K-7 sensor size comparison

Pentax K-3 III vs Pentax K-7 Screen and ViewFinder

Pentax K-3 III vs Pentax K-7 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Pentax K-3 III
Portrait photography with Pentax K-7
82
you can focus manually
resolution is fantastic (26MP)
decent sensor size (APS-C)
offers face detection autofocus
supports RAW files
72
you can focus manually
sensor resolution is decent (15 megapixels)
sensor size is nice (APS-C)
offers face detection focusing
exports RAW formats
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Street Comparison

Street photography with Pentax K-3 III
Street photography with Pentax K-7
70
has image stabilization (Sensor based)
decent sensor size (APS-C)
supports RAW files
boasts touch to focus
weather proofing
very good high ISO (1,600,000)
no articulating screen
66
image stabilization (Sensor based)
sensor size is nice (APS-C)
exports RAW formats
weather sealing
screen is fixed
Photography Glossary

Sports Comparison

Sports photography with Pentax K-3 III
Sports photography with Pentax K-7
79
great max shutter speed (1/8,000s)
has image stabilization (Sensor based)
resolution is fantastic (26MP)
decent sensor size (APS-C)
offers tracking autofocus
weather proofing
sensor has phase detect autofocus
terrible battery pack (800 per charge)
69
max shutter speed is good (1/8,000 seconds)
image stabilization (Sensor based)
sensor resolution is decent (15 megapixels)
sensor size is nice (APS-C)
weather sealing
comes with phase detect AF
max fps low (5.0 frames per second)
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Travel Comparison

Pentax K-3 III Travel photography factors
Pentax K-7 Travel photography factors
64
weather proofing
connects via bluetooth
boasts touch to focus
resolution is fantastic (26 megapixels)
terrible battery pack (800 shots)
display isn't selfie friendly
64
weather sealing
sensor resolution is decent (15MP)
has built in flash
screen is not selfie friendly
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Landscape Comparison

Landscape photography with Pentax K-3 III
Landscape photography with Pentax K-7
80
you can focus manually
switch lenses (Pentax KAF2 mount)
screen size is good (3.2 inches)
has image stabilization (Sensor based)
resolution is fantastic (26MP)
decent sensor size (APS-C)
does not have anti aliasing filter
very good high ISO (1,600,000)
supports RAW files
weather proofing
has double storage slots
terrible battery pack (800 CIPA)
77
you can focus manually
change lenses (Pentax KAF2 mount)
pretty good screen size (3")
image stabilization (Sensor based)
sensor resolution is decent (15 megapixels)
sensor size is nice (APS-C)
exports RAW formats
weather sealing
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Vlogging Comparison

Pentax K-3 III as a Vlogging camera
Pentax K-7 as a Vlogging camera
35
screen is touchscreen
has image stabilization (Sensor based)
offers face detection autofocus
high res video (3840 x 2160 pixels)
includes external mic port
display isn't selfie friendly
25
image stabilization (Sensor based)
offers face detection focusing
screen is not selfie friendly
low quality video (1280 x 720 pxls)
missing external microphone jack
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Pentax K-3 III vs Pentax K-7 Specifications

Detailed spec comparison table for Pentax K-3 III and Pentax K-7
 Pentax K-3 Mark IIIPentax K-7
General Information
Brand Name Pentax Pentax
Model type Pentax K-3 Mark III Pentax K-7
Category Advanced DSLR Advanced DSLR
Announced 2021-03-31 2009-10-02
Body design Mid-size SLR Mid-size SLR
Sensor Information
Powered by - Prime II
Sensor type CMOS CMOS
Sensor size APS-C APS-C
Sensor measurements 23 x 15.5mm 23.4 x 15.6mm
Sensor area 356.5mm² 365.0mm²
Sensor resolution 26 megapixels 15 megapixels
Anti alias filter
Aspect ratio 3:2 3:2
Maximum resolution 6192 x 4128 4672 x 3104
Maximum native ISO 1600000 2000
Maximum boosted ISO - 6400
Lowest native ISO 100 100
RAW photos
Autofocusing
Manual focusing
Touch focus
Continuous AF
AF single
Tracking AF
Selective AF
AF center weighted
AF multi area
AF live view
Face detection focusing
Contract detection focusing
Phase detection focusing
Total focus points 101 11
Cross type focus points 25 -
Lens
Lens mount type Pentax KAF2 Pentax KAF2
Number of lenses 156 151
Crop factor 1.6 1.5
Screen
Range of screen Fixed Type Fixed Type
Screen sizing 3.2 inches 3 inches
Resolution of screen 1,620k dot 921k dot
Selfie friendly
Liveview
Touch capability
Screen tech - TFT color LCD with AR coating
Viewfinder Information
Viewfinder Optical (pentaprism) Optical (pentaprism)
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.7x 0.61x
Features
Lowest shutter speed 30s 30s
Highest shutter speed 1/8000s 1/8000s
Continuous shooting speed 12.0 frames/s 5.0 frames/s
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Custom WB
Image stabilization
Integrated flash
Flash distance no built-in flash 13.00 m
Flash options 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 Auto, On, Off, Red-eye, Slow Sync, Rear Curtain, Wireless
Hot shoe
Auto exposure bracketing
White balance bracketing
Highest flash sync 1/200s 1/180s
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported 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 1280 x 720 (30 fps), 1536 x 1024 (30 fps), 640 x 480 (30 fps), 320 x 240 (30 fps)
Maximum video resolution 3840x2160 1280x720
Video data format MPEG-4, H.264 Motion JPEG
Microphone input
Headphone input
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 3.2 Gen 1 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 820 grams (1.81 pounds) 750 grams (1.65 pounds)
Physical dimensions 135 x 104 x 74mm (5.3" x 4.1" x 2.9") 131 x 97 x 73mm (5.2" x 3.8" x 2.9")
DXO scores
DXO All around rating not tested 61
DXO Color Depth rating not tested 22.6
DXO Dynamic range rating not tested 10.6
DXO Low light rating not tested 536
Other
Battery life 800 photos 980 photos
Battery format Battery Pack Battery Pack
Battery ID D-LI90 D-LI90
Self timer Yes Yes (2 or 10 sec)
Time lapse recording
Storage media Dual SD/SDHC/SDXC slots (UHS-II supported in slot 1) SD/SDHC/MMC
Storage slots Dual One
Launch price $1,999 $599