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Pentax K-3 Verses Pentax K-5 IIs DSLR Comparison

We compare the Pentax K-3 and Pentax K-5 IIs to see what the differences are between this major update and predecessor.

|  Pentax K-5 IIs in Digital SLRs
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Pentax K 5 IIs VS Pentax K 3 (2)

The Pentax K-3 Digital SLR is a significant upgrade to the K-5 II / IIs, and sits at the top of the range, above the K-5 II and IIs, so in order to provide a guide to what the Pentax K-3 offers, we are comparing it to the Pentax K-5 IIs.

To find out more about the Pentax K-3, read our hands-on preview, or watch our Pentax K-3 Feature overview video.

Pentax K 5 IIs VS Pentax K 3 (3)

Key Features Comparison:

Pentax K-5 IIs Pentax K-3
16.28MP APS-C sensor 24 megapixel APS-C CMOS sensor (Sony)
No anti-aliasing filter No Anti-Aliasing Filter
PRIME II image processor

PRIME III image processor (14bit AD/RAW)
with AA simulator (moving sensor) / in camera correction with software as well
3inch 921k dots, gapless screen 3.2inch 1037k dots, gapless screen
100% field of view, glass pentaprism 100% viewfinder, glass pentaprism
0.92X magnification 0.95X magnification
11 point AF, 9 cross type, -3EV 27 point AF, 25 cross type, -3EV to +18EV
77 segment metering system 86k RGB exposure meter
7fps maximum frame rate 8.3fps continuous shooting
100,000 shot shutter release rating 200,000 shot shutter release rating
Dual axis electronic level Dual axis electronic level
4step Shake Reduction (SR) 4step Shake Reduction (SR)
AWB New Multi-area AWB (from Ricoh)
SD card slot Dual SD card slot
ISO100 to 12800, expandable to ISO80, 51200 ISO100 - ISO51200
Full HD Movie Mode Improved Full HD Video, 60i, 50i, 30p, 25p, 24p
Mic socket
Mic socket / Headphone socket,
Adjustable mic level (20 steps)
USB2.0 USB3.0
Eye-Fi compatible Eye-Fi / FLU Card compatible
740 shot battery life 560 shot battery life
131mm x 97mm x 72.5mm 131.5mm x 100mm x 77.5mm
680g 800g
K5 II s Body only RRP - £949.99, now £799 K-3 Body only £1099

Pentax K 5 IIs VS Pentax K 3 (6)
Pentax K-5 IIs VS Pentax K-3 - the back of the K-3 (on the right) will say RICOH on the final production version, however, the model shown here is a pre-production version.

Pentax K 5 IIs VS Pentax K 3 (5)

The Pentax K-3 has a new switch next to the mode dial, to let you switch the lock on and off depending on what you prefer.

Pentax K 5 IIs VS Pentax K 3 (13)

On the side is a new headphone socket, as well as a new AF-mode button so you can switch between the different focusing modes available. On the other side is the new dual-SD card slot, which will accommodate the new FLU card, as well as regular SD cards. 

Pentax K 5 IIs VS Pentax K 3 (11)

To find out more about the Pentax K-3, read our Pentax K-3 Hands-On Preview, or watch our Pentax K-3 Feature overview video.

Comparison Table

Pentax K-5 IIsPentax K-3
Effective Magnification1.5x1.5x
Image Sensor
Pixels16.3Mp (Megapixels)24Mp (Megapixels)
Pixels (W)49286016
Pixels (H)32644000
Sensor SizeAPS-CAPS-C
Sensor Size (width)23.7mm23.5mm
Sensor Size (height)15.7mm15.6mm
Aspect Ratio
  • 3:2
  • 3:2
  • 16:9
LCD Monitor
LCD Monitor3in3.2in
Screen resolution921,000 dots1037k
Touch ScreenNoNo
Focusing modes
  • Autofocus
  • Autofocus
  • Manual
  • Spot
  • AF Tracking
  • Multi
  • Centre
  • AF Fine Tuning (Micro Adjustment)
Exposure Control
Shutter speeds shortest1/8000sec1/8000sec
Shutter speeds longest30sec30sec
Bulb modeNo DataYes
Exp modes
  • Program
  • Aperture-Priority
  • Shutter-Priority
  • Manual
  • A
  • Program Variable
  • Program
  • Aperture-Priority
  • Shutter-Priority
  • Manual
  • Scene modes
  • Program Variable
  • Centre-weighted - Average
  • Multi Pattern
  • Spot
  • TTL
  • Centre-weighted - Average
  • Multi Pattern
  • Spot
ISO sensitivity100 - 51200100 - 51200
White balance
  • Auto
  • Manual
  • Outdoors/Daylight
  • Cloudy
  • Incandescent
  • Fluorescent
  • Shade
  • Flash
  • Auto
  • Manual
  • Outdoors/Daylight
  • Cloudy
  • Incandescent
  • Fluorescent
  • Shade
  • Flash
Exposure Comp+/-5+/-5
Shooting Options
Continuous shooting7fps8.3fps
Movie modeYesYes
Video Resolution
  • 1920x1080 FullHD
  • 1280x720 HD 720p
  • 640x480 VGA
  • 1920x1080 FullHD
  • 1280x720 HD 720p
Video FPS3060i, 50i, 30p, 25p, 24p
Stereo SoundNoNo
Optical Zoom with VideoYesYes
Other Features
Image StabilisationYesYes
Card Type
  • SD
  • SDHC
  • SD
  • SDHC
  • SDXC
File Type
  • RAW
  • JPG
  • RAW + JPG
  • RAW
  • JPG
  • RAW + JPG
Power Source
Battery TypeRechargeable D-LI90P Lithium-ion batteryRechargeable Lithium-ion Battery D-LI90P
Battery Life (CIPA rating)740shots560shots
Box Contents
Box ContentsNo DataNo Data
View Full DetailsView Full Details
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Photographs taken using the Pentax K-5 IIs

DappledMoonThe Beach is SafeHanging aboutStand Stillcrested tit / Lophophanes cristatusThe CallingPietGrey Seal PupGrey SealArcadeO M GSalford QuaysTownWindow on the World

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