General

Pentax K-r Pentax K-x
Brand
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Pentax Pentax
Lowest price
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$1,195.00 $1,495.00
Announced
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September 2010 September 2009

Sensor

Type
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CMOS CMOS
Crop factor
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1.5x 1.5x
Megapixels
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12.2 MP 12.2 MP
Light sensitivity
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12,800 ISO 6,400 ISO
Light sensitivity (boost)
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25,600 ISO 12,800 ISO
Sensor cleaning
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Yes Yes

Sensor (Advanced)

True resolution
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12.2 MP 12.2 MP
Native resolution
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4288 × 2848 4288 × 2848
Pixel size
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30.5 µm² 30.5 µm²

Screen

Type
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LCD LCD
Size
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3" 2.7"
Resolution
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920k dots 230k dots
Touch screen
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No No
Flips out
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No No
Live view
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Yes Yes

Lenses

Lens availability
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113 lenses 113 lenses
Lens mount
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Pentax K Pentax K

Form factor

Size
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125×97×68 mm 123×92×68 mm
Depth
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2.7" 2.7"
Weight
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598 g 580 g
Interchangeable lenses
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Yes Yes
Waterproof
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No No
Weather sealed
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No No
Built-in focus motor
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Yes Yes

Viewfinder

Type
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Pentamirror Pentamirror
Viewfinder size
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0.56x 0.56x
Coverage
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96% 96%

Movies

Format
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720p @ 25fps 720p @ 24fps
Supports 24p
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No Yes
High-speed framerate
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None None
External mic jack
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No No
Autofocus
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None None
All formats
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  1. 480p @ 25fps
  2. 720p @ 25fps
  1. 640 x 416 @ 24fps
  2. 720p @ 24fps

Features

Panorama
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No No
HDR
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Yes Yes
3D
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No No
Image stabilization
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  1. Sensor shift
  1. Sensor shift
Supports RAW
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Yes Yes
GPS
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No No

Performance

Startup delay
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300 ms 600 ms
Shutter lag
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105 ms 97 ms
Battery life
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470 shots 420 shots
Continuous shooting
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6 fps 4.7 fps

Focus system

Autofocus
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Phase detection Phase detection
Focus points
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11 11
Cross type focus points
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9 9

Shutter

Max
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1/6000s 1/6000s
Min
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30s 30s

Flash

Built-in flash
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Yes Yes
Popup
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Yes Yes
External connection
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Yes Yes

Storage

Storage slots
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1 1
Supported formats
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  1. SD
  2. SDHC
  3. SDXC
  1. SD
  2. SDHC

DXO Mark Scores

Image quality
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72.0 72.0
Color depth
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22.9 bits 22.8 bits
Dynamic range
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12.4 EV 12.5 EV
Low light performance
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755 ISO 811 ISO
Pentax K-r
K-r
Pentax

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Pentax K-x
K-x
Pentax

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